README.md

@@ -76,6 +76,12 @@ KMath is a modular library. Different modules provide different features with di
 
 <hr/>
 
+* ### [benchmarks](benchmarks)
+> 
+>
+> **Maturity**: EXPERIMENTAL
+<hr/>
+
 * ### [examples](examples)
 > 
 >
@@ -88,12 +94,10 @@ KMath is a modular library. Different modules provide different features with di
 > **Maturity**: PROTOTYPE
 >
 > **Features:**
-> - [expression-language](kmath-ast/src/jvmMain/kotlin/space/kscience/kmath/ast/parser.kt) : Expression language and its parser
+> - [expression-language](kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/parser.kt) : Expression language and its parser
-> - [mst](kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/MST.kt) : MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation
-> - [mst-building](kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/MstAlgebra.kt) : MST building algebraic structure
-> - [mst-interpreter](kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/MST.kt) : MST interpreter
 > - [mst-jvm-codegen](kmath-ast/src/jvmMain/kotlin/space/kscience/kmath/asm/asm.kt) : Dynamic MST to JVM bytecode compiler
 > - [mst-js-codegen](kmath-ast/src/jsMain/kotlin/space/kscience/kmath/estree/estree.kt) : Dynamic MST to JS compiler
+> - [rendering](kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/rendering/MathRenderer.kt) : Extendable MST rendering
 
 <hr/>
 
@@ -266,8 +270,8 @@ repositories {
 }
 
 dependencies {
-    api("space.kscience:kmath-core:0.3.0-dev-6")
+    api("space.kscience:kmath-core:0.3.0-dev-7")
-    // api("space.kscience:kmath-core-jvm:0.3.0-dev-6") for jvm-specific version
+    // api("space.kscience:kmath-core-jvm:0.3.0-dev-7") for jvm-specific version
 }
 ```
 

benchmarks/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     kotlin("plugin.allopen")
@@ -14,8 +12,6 @@ plugins {
 allOpen.annotation("org.openjdk.jmh.annotations.State")
 sourceSets.register("benchmarks")
 
-
-
 repositories {
     mavenCentral()
     jcenter()
@@ -77,43 +73,35 @@ benchmark {
         register("jvm")
     }
 
+    fun kotlinx.benchmark.gradle.BenchmarkConfiguration.commonConfiguration() {
+        warmups = 1
+        iterations = 5
+        iterationTime = 1000
+        iterationTimeUnit = "ms"
+    }
+
     configurations.register("buffer") {
-        warmups = 1 // number of warmup iterations
+        commonConfiguration()
-        iterations = 3 // number of iterations
-        iterationTime = 500 // time in seconds per iteration
-        iterationTimeUnit = "ms" // time unity for iterationTime, default is seconds
         include("BufferBenchmark")
     }
 
     configurations.register("dot") {
-        warmups = 1 // number of warmup iterations
+        commonConfiguration()
-        iterations = 3 // number of iterations
-        iterationTime = 500 // time in seconds per iteration
-        iterationTimeUnit = "ms" // time unity for iterationTime, default is seconds
         include("DotBenchmark")
     }
 
     configurations.register("expressions") {
-        warmups = 1 // number of warmup iterations
+        commonConfiguration()
-        iterations = 3 // number of iterations
-        iterationTime = 500 // time in seconds per iteration
-        iterationTimeUnit = "ms" // time unity for iterationTime, default is seconds
         include("ExpressionsInterpretersBenchmark")
     }
 
     configurations.register("matrixInverse") {
-        warmups = 1 // number of warmup iterations
+        commonConfiguration()
-        iterations = 3 // number of iterations
-        iterationTime = 500 // time in seconds per iteration
-        iterationTimeUnit = "ms" // time unity for iterationTime, default is seconds
         include("MatrixInverseBenchmark")
     }
 
     configurations.register("bigInt") {
-        warmups = 1 // number of warmup iterations
+        commonConfiguration()
-        iterations = 3 // number of iterations
-        iterationTime = 500 // time in seconds per iteration
-        iterationTimeUnit = "ms" // time unity for iterationTime, default is seconds
         include("BigIntBenchmark")
     }
 }
@@ -121,7 +109,7 @@ benchmark {
 // Fix kotlinx-benchmarks bug
 afterEvaluate {
     val jvmBenchmarkJar by tasks.getting(org.gradle.jvm.tasks.Jar::class) {
-        duplicatesStrategy = org.gradle.api.file.DuplicatesStrategy.EXCLUDE
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
     }
 }
 
@@ -143,5 +131,5 @@ tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
 
 
 readme {
-    maturity = Maturity.EXPERIMENTAL
+    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
 }

benchmarks/src/jvmMain/kotlin/space/kscience/kmath/benchmarks/ExpressionsInterpretersBenchmark.kt

@@ -11,6 +11,7 @@ import kotlinx.benchmark.Scope
 import kotlinx.benchmark.State
 import space.kscience.kmath.asm.compileToExpression
 import space.kscience.kmath.expressions.*
+import space.kscience.kmath.misc.Symbol
 import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
 import space.kscience.kmath.operations.bindSymbol
@@ -20,50 +21,22 @@ import kotlin.random.Random
 @State(Scope.Benchmark)
 internal class ExpressionsInterpretersBenchmark {
     @Benchmark
-    fun functionalExpression(blackhole: Blackhole) {
+    fun functionalExpression(blackhole: Blackhole) = invokeAndSum(functional, blackhole)
-        val expr = algebra.expressionInField {
-            val x = bindSymbol(x)
-            x * const(2.0) + const(2.0) / x - const(16.0)
-        }
-
-        invokeAndSum(expr, blackhole)
-    }
 
     @Benchmark
-    fun mstExpression(blackhole: Blackhole) {
+    fun mstExpression(blackhole: Blackhole) = invokeAndSum(mst, blackhole)
-        val expr = MstField {
-            val x = bindSymbol(x)
-            x * 2.0 + number(2.0) / x - 16.0
-        }.toExpression(algebra)
-
-        invokeAndSum(expr, blackhole)
-    }
 
     @Benchmark
-    fun asmExpression(blackhole: Blackhole) {
+    fun asmExpression(blackhole: Blackhole) = invokeAndSum(asm, blackhole)
-        val expr = MstField {
-            val x = bindSymbol(x)
-            x * 2.0 + number(2.0) / x - 16.0
-        }.compileToExpression(algebra)
-
-        invokeAndSum(expr, blackhole)
-    }
 
     @Benchmark
-    fun rawExpression(blackhole: Blackhole) {
+    fun rawExpression(blackhole: Blackhole) = invokeAndSum(raw, blackhole)
-        val expr = Expression<Double> { args ->
-            val x = args.getValue(x)
-            x * 2.0 + 2.0 / x - 16.0
-        }
-
-        invokeAndSum(expr, blackhole)
-    }
 
     private fun invokeAndSum(expr: Expression<Double>, blackhole: Blackhole) {
         val random = Random(0)
         var sum = 0.0
 
-        repeat(1000000) {
+        repeat(times) {
             sum += expr(x to random.nextDouble())
         }
 
@@ -71,7 +44,23 @@ internal class ExpressionsInterpretersBenchmark {
     }
 
     private companion object {
-        private val algebra = DoubleField
+        private val x: Symbol by symbol
-        private val x by symbol
+        private val algebra: DoubleField = DoubleField
+        private const val times = 1_000_000
+
+        private val functional: Expression<Double> = DoubleField.expressionInExtendedField {
+            bindSymbol(x) * number(2.0) + number(2.0) / bindSymbol(x) - number(16.0) / sin(bindSymbol(x))
+        }
+
+        private val node = MstExtendedField {
+            bindSymbol(x) * 2.0 + number(2.0) / bindSymbol(x) - number(16.0) / sin(bindSymbol(x))
+        }
+
+        private val mst: Expression<Double> = node.toExpression(DoubleField)
+        private val asm: Expression<Double> = node.compileToExpression(DoubleField)
+
+        private val raw: Expression<Double> = Expression { args ->
+            args.getValue(x) * 2.0 + 2.0 / args.getValue(x) - 16.0 / kotlin.math.sin(args.getValue(x))
+        }
     }
 }

build.gradle.kts

@@ -3,9 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import org.jetbrains.dokka.gradle.DokkaTask
-import java.net.URL
-
 plugins {
     id("ru.mipt.npm.gradle.project")
 }
@@ -17,8 +14,7 @@ allprojects {
         maven("https://dl.bintray.com/egor-bogomolov/astminer/")
         maven("https://dl.bintray.com/hotkeytlt/maven")
         maven("https://jitpack.io")
-        maven{
+        maven("http://logicrunch.research.it.uu.se/maven/") {
-            setUrl("http://logicrunch.research.it.uu.se/maven/")
             isAllowInsecureProtocol = true
         }
         mavenCentral()
@@ -32,7 +28,7 @@ subprojects {
     if (name.startsWith("kmath")) apply<MavenPublishPlugin>()
 
     afterEvaluate {
-        tasks.withType<DokkaTask> {
+        tasks.withType<org.jetbrains.dokka.gradle.DokkaTask> {
             dokkaSourceSets.all {
                 val readmeFile = File(this@subprojects.projectDir, "./README.md")
                 if (readmeFile.exists())
@@ -42,7 +38,7 @@ subprojects {
                     "http://ejml.org/javadoc/",
                     "https://commons.apache.org/proper/commons-math/javadocs/api-3.6.1/",
                     "https://deeplearning4j.org/api/latest/"
-                ).map { URL("${it}package-list") to URL(it) }.forEach { (a, b) ->
+                ).map { java.net.URL("${it}package-list") to java.net.URL(it) }.forEach { (a, b) ->
                     externalDocumentationLink {
                         packageListUrl.set(a)
                         url.set(b)

examples/build.gradle.kts

@@ -3,9 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("jvm")
 }
@@ -64,7 +61,7 @@ kotlin.sourceSets.all {
     }
 }
 
-tasks.withType<KotlinCompile> {
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
     kotlinOptions{
         jvmTarget = "11"
         freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
@@ -72,5 +69,5 @@ tasks.withType<KotlinCompile> {
 }
 
 readme {
-    maturity = Maturity.EXPERIMENTAL
+    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
 }

examples/src/main/kotlin/space/kscience/kmath/ast/kotlingradSupport.kt

@@ -25,5 +25,5 @@ fun main() {
 
 
     val expectedDerivative = "2*x-4".parseMath().compileToExpression(DoubleField)
-    assert(actualDerivative("x" to 123.0) == expectedDerivative("x" to 123.0))
+    assert(actualDerivative(x to 123.0) == expectedDerivative(x to 123.0))
 }

kmath-ast/README.md

@@ -2,17 +2,15 @@
 
 Abstract syntax tree expression representation and related optimizations.
 
- - [expression-language](src/jvmMain/kotlin/space/kscience/kmath/ast/parser.kt) : Expression language and its parser
+ - [expression-language](src/commonMain/kotlin/space/kscience/kmath/ast/parser.kt) : Expression language and its parser
- - [mst](src/commonMain/kotlin/space/kscience/kmath/ast/MST.kt) : MST (Mathematical Syntax Tree) as expression language's syntax intermediate representation
- - [mst-building](src/commonMain/kotlin/space/kscience/kmath/ast/MstAlgebra.kt) : MST building algebraic structure
- - [mst-interpreter](src/commonMain/kotlin/space/kscience/kmath/ast/MST.kt) : MST interpreter
  - [mst-jvm-codegen](src/jvmMain/kotlin/space/kscience/kmath/asm/asm.kt) : Dynamic MST to JVM bytecode compiler
  - [mst-js-codegen](src/jsMain/kotlin/space/kscience/kmath/estree/estree.kt) : Dynamic MST to JS compiler
+ - [rendering](src/commonMain/kotlin/space/kscience/kmath/ast/rendering/MathRenderer.kt) : Extendable MST rendering
 
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-ast:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-ast:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -23,7 +21,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-ast:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-ast:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -35,7 +33,7 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-ast:0.3.0-dev-6")
+    implementation("space.kscience:kmath-ast:0.3.0-dev-7")
 }
 ```
 
@@ -49,10 +47,10 @@ a special implementation of `Expression<T>` with implemented `invoke` function.
 For example, the following builder:
 
 ```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
 ``` 
 
-… leads to generation of bytecode, which can be decompiled to the following Java class:
+… leads to generation of bytecode, which can be decompiled to the following Java class:
 
 ```java
 package space.kscience.kmath.asm.generated;
@@ -77,15 +75,6 @@ public final class AsmCompiledExpression_45045_0 implements Expression<Double> {
 
 ```
 
-### Example Usage
-
-This API extends MST and MstExpression, so you may optimize as both of them:
-
-```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
-DoubleField.expression("x+2".parseMath())
-```
-
 #### Known issues
 
 - The same classes may be generated and loaded twice, so it is recommended to cache compiled expressions to avoid
@@ -97,7 +86,7 @@ DoubleField.expression("x+2".parseMath())
 A similar feature is also available on JS.
 
 ```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
 ``` 
 
 The code above returns expression implemented with such a JS function:
@@ -108,13 +97,32 @@ var executable = function (constants, arguments) {
 };
 ```
 
+
+```kotlin
+import space.kscience.kmath.wasm.*
+
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
+```
+
+An example of emitted WASM IR in the form of WAT:
+
+```lisp
+(func $executable (param $0 f64) (result f64)
+  (f64.add
+    (local.get $0)
+    (f64.const 2)
+  )
+)
+```
+
 #### Known issues
 
-- This feature uses `eval` which can be unavailable in several environments.
+- ESTree expression compilation uses `eval` which can be unavailable in several environments.
+- WebAssembly isn't supported by old versions of browsers (see https://webassembly.org/roadmap/).
 
 ## Rendering expressions
 
-kmath-ast also includes an extensible engine to display expressions in LaTeX or MathML syntax. 
+kmath-ast also includes an extensible engine to display expressions in LaTeX or MathML syntax.
 
 Example usage:
 
@@ -135,7 +143,7 @@ public fun main() {
 }
 ```
 
-Result LaTeX: 
+Result LaTeX:
 
 ![](http://chart.googleapis.com/chart?cht=tx&chl=e%5E%7B%5Csqrt%7Bx%7D%7D-%5Cfrac%7B%5Cfrac%7B%5Coperatorname%7Bsin%7D%5E%7B-1%7D%5C,%5Cleft(2%5C,x%5Cright)%7D%7B2%5Ctimes10%5E%7B10%7D%2Bx%5E%7B3%7D%7D%7D%7B-12%7D)
 
@@ -145,5 +153,5 @@ Result MathML (embedding MathML is not allowed by GitHub Markdown):
 <mrow><msup><mrow><mi>e</mi></mrow><mrow><msqrt><mi>x</mi></msqrt></mrow></msup><mo>-</mo><mfrac><mrow><mfrac><mrow><msup><mrow><mo>sin</mo></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup><mspace width="0.167em"></mspace><mfenced open="(" close=")" separators=""><mn>2</mn><mspace width="0.167em"></mspace><mi>x</mi></mfenced></mrow><mrow><mn>2</mn><mo>&times;</mo><msup><mrow><mn>10</mn></mrow><mrow><mn>10</mn></mrow></msup><mo>+</mo><msup><mrow><mi>x</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></mfrac></mrow><mrow><mo>-</mo><mn>12</mn></mrow></mfrac></mrow>
 ```
 
-It is also possible to create custom algorithms of render, and even add support of other markup languages 
+It is also possible to create custom algorithms of render, and even add support of other markup languages
 (see API reference).

kmath-ast/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -41,6 +39,9 @@ kotlin.sourceSets {
     jsMain {
         dependencies {
             implementation(npm("astring", "1.7.4"))
+            implementation(npm("binaryen", "100.0"))
+            implementation(npm("js-base64", "3.6.0"))
+            implementation(npm("webassembly", "0.11.0"))
         }
     }
 
@@ -58,7 +59,7 @@ tasks.dokkaHtml {
 }
 
 readme {
-    maturity = Maturity.PROTOTYPE
+    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
     propertyByTemplate("artifact", rootProject.file("docs/templates/ARTIFACT-TEMPLATE.md"))
 
     feature(

kmath-ast/docs/README-TEMPLATE.md

@@ -16,7 +16,7 @@ a special implementation of `Expression<T>` with implemented `invoke` function.
 For example, the following builder:
 
 ```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
 ``` 
 
 … leads to generation of bytecode, which can be decompiled to the following Java class:
@@ -44,15 +44,6 @@ public final class AsmCompiledExpression_45045_0 implements Expression<Double> {
 
 ```
 
-### Example Usage
-
-This API extends MST and MstExpression, so you may optimize as both of them:
-
-```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
-DoubleField.expression("x+2".parseMath())
-```
-
 #### Known issues
 
 - The same classes may be generated and loaded twice, so it is recommended to cache compiled expressions to avoid
@@ -64,7 +55,7 @@ DoubleField.expression("x+2".parseMath())
 A similar feature is also available on JS.
 
 ```kotlin
-DoubleField.mstInField { symbol("x") + 2 }.compile()
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
 ``` 
 
 The code above returns expression implemented with such a JS function:
@@ -75,13 +66,32 @@ var executable = function (constants, arguments) {
 };
 ```
 
+
+```kotlin
+import space.kscience.kmath.wasm.*
+
+MstField { bindSymbol("x") + 2 }.compileToExpression(DoubleField)
+```
+
+An example of emitted WASM IR in the form of WAT:
+
+```lisp
+(func \$executable (param \$0 f64) (result f64)
+  (f64.add
+    (local.get \$0)
+    (f64.const 2)
+  )
+)
+```
+
 #### Known issues
 
-- This feature uses `eval` which can be unavailable in several environments.
+- ESTree expression compilation uses `eval` which can be unavailable in several environments.
+- WebAssembly isn't supported by old versions of browsers (see https://webassembly.org/roadmap/).
 
 ## Rendering expressions
 
-kmath-ast also includes an extensible engine to display expressions in LaTeX or MathML syntax. 
+kmath-ast also includes an extensible engine to display expressions in LaTeX or MathML syntax.
 
 Example usage:
 
@@ -102,7 +112,7 @@ public fun main() {
 }
 ```
 
-Result LaTeX: 
+Result LaTeX:
 
 ![](http://chart.googleapis.com/chart?cht=tx&chl=e%5E%7B%5Csqrt%7Bx%7D%7D-%5Cfrac%7B%5Cfrac%7B%5Coperatorname%7Bsin%7D%5E%7B-1%7D%5C,%5Cleft(2%5C,x%5Cright)%7D%7B2%5Ctimes10%5E%7B10%7D%2Bx%5E%7B3%7D%7D%7D%7B-12%7D)
 
@@ -112,5 +122,5 @@ Result MathML (embedding MathML is not allowed by GitHub Markdown):
 <mrow><msup><mrow><mi>e</mi></mrow><mrow><msqrt><mi>x</mi></msqrt></mrow></msup><mo>-</mo><mfrac><mrow><mfrac><mrow><msup><mrow><mo>sin</mo></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup><mspace width="0.167em"></mspace><mfenced open="(" close=")" separators=""><mn>2</mn><mspace width="0.167em"></mspace><mi>x</mi></mfenced></mrow><mrow><mn>2</mn><mo>&times;</mo><msup><mrow><mn>10</mn></mrow><mrow><mn>10</mn></mrow></msup><mo>+</mo><msup><mrow><mi>x</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></mfrac></mrow><mrow><mo>-</mo><mn>12</mn></mrow></mfrac></mrow>
 ```
 
-It is also possible to create custom algorithms of render, and even add support of other markup languages 
+It is also possible to create custom algorithms of render, and even add support of other markup languages
 (see API reference).

kmath-ast/src/commonTest/kotlin/space/kscisnce/kmath/ast/InterpretTest.kt

@@ -1,27 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscisnce.kmath.ast
-
-import space.kscience.kmath.expressions.MstField
-import space.kscience.kmath.expressions.invoke
-import space.kscience.kmath.expressions.toExpression
-import space.kscience.kmath.misc.Symbol.Companion.x
-import space.kscience.kmath.operations.DoubleField
-import space.kscience.kmath.operations.bindSymbol
-import space.kscience.kmath.operations.invoke
-import kotlin.test.Test
-
-class InterpretTest {
-
-    @Test
-    fun interpretation(){
-        val expr = MstField {
-            val x = bindSymbol(x)
-            x * 2.0 + number(2.0) / x - 16.0
-        }.toExpression(DoubleField)
-        expr(x to 2.2)
-    }
-}

kmath-ast/src/commonTest/kotlin/space/kscisnce/kmath/ast/ParserPrecedenceTest.kt

@@ -1,19 +1,12 @@
-/*
+package space.kscisnce.kmath.ast
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast
 
+import space.kscience.kmath.ast.parseMath
 import space.kscience.kmath.expressions.evaluate
 import space.kscience.kmath.operations.DoubleField
-import space.kscience.kmath.operations.Field
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class ParserPrecedenceTest {
-    private val f: Field<Double> = DoubleField
-
     @Test
     fun test1(): Unit = assertEquals(6.0, f.evaluate("2*2+2".parseMath()))
 
@@ -37,4 +30,8 @@ internal class ParserPrecedenceTest {
 
     @Test
     fun test8(): Unit = assertEquals(18.0, f.evaluate("2*2^3+2".parseMath()))
+
+    private companion object {
+        private val f = DoubleField
+    }
 }

kmath-ast/src/commonTest/kotlin/space/kscisnce/kmath/ast/ParserTest.kt

@@ -1,37 +1,24 @@
-/*
+package space.kscisnce.kmath.ast
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast
 
+import space.kscience.kmath.ast.parseMath
 import space.kscience.kmath.complex.Complex
 import space.kscience.kmath.complex.ComplexField
-import space.kscience.kmath.expressions.MstField
 import space.kscience.kmath.expressions.evaluate
-import space.kscience.kmath.expressions.interpret
 import space.kscience.kmath.operations.Algebra
 import space.kscience.kmath.operations.DoubleField
-import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class ParserTest {
     @Test
-    fun `evaluate MST`() {
+    fun evaluateParsedMst() {
         val mst = "2+2*(2+2)".parseMath()
         val res = ComplexField.evaluate(mst)
         assertEquals(Complex(10.0, 0.0), res)
     }
 
     @Test
-    fun `evaluate MSTExpression`() {
+    fun evaluateMstSymbol() {
-        val res = MstField.invoke { number(2) + number(2) * (number(2) + number(2)) }.interpret(ComplexField)
-        assertEquals(Complex(10.0, 0.0), res)
-    }
-
-    @Test
-    fun `evaluate MST with singular`() {
         val mst = "i".parseMath()
         val res = ComplexField.evaluate(mst)
         assertEquals(ComplexField.i, res)
@@ -39,14 +26,14 @@ internal class ParserTest {
 
 
     @Test
-    fun `evaluate MST with unary function`() {
+    fun evaluateMstUnary() {
         val mst = "sin(0)".parseMath()
         val res = DoubleField.evaluate(mst)
         assertEquals(0.0, res)
     }
 
     @Test
-    fun `evaluate MST with binary function`() {
+    fun evaluateMstBinary() {
         val magicalAlgebra = object : Algebra<String> {
             override fun bindSymbolOrNull(value: String): String = value
 

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/estree/estree.kt

@@ -6,11 +6,11 @@
 package space.kscience.kmath.estree
 
 import space.kscience.kmath.estree.internal.ESTreeBuilder
-import space.kscience.kmath.estree.internal.estree.BaseExpression
 import space.kscience.kmath.expressions.Expression
 import space.kscience.kmath.expressions.MST
 import space.kscience.kmath.expressions.MST.*
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.internal.estree.BaseExpression
 import space.kscience.kmath.misc.Symbol
 import space.kscience.kmath.operations.Algebra
 import space.kscience.kmath.operations.NumericAlgebra

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/estree/internal/ESTreeBuilder.kt

@@ -5,9 +5,14 @@
 
 package space.kscience.kmath.estree.internal
 
-import space.kscience.kmath.estree.internal.astring.generate
-import space.kscience.kmath.estree.internal.estree.*
 import space.kscience.kmath.expressions.Expression
+import space.kscience.kmath.internal.astring.generate
+import space.kscience.kmath.internal.estree.*
+import space.kscience.kmath.internal.estree.BaseExpression
+import space.kscience.kmath.internal.estree.BlockStatement
+import space.kscience.kmath.internal.estree.Program
+import space.kscience.kmath.internal.estree.VariableDeclaration
+import space.kscience.kmath.internal.estree.VariableDeclarator
 import space.kscience.kmath.misc.Symbol
 
 internal class ESTreeBuilder<T>(val bodyCallback: ESTreeBuilder<T>.() -> BaseExpression) {

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/estree/internal/stream/stream.kt

@@ -1,12 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.estree.internal.stream
-
-import space.kscience.kmath.estree.internal.emitter.Emitter
-
-internal open external class Stream : Emitter {
-    open fun pipe(dest: Any, options: Any): Any
-}

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/astring/astring.kt

@@ -6,9 +6,9 @@
 @file:JsModule("astring")
 @file:JsNonModule
 
-package space.kscience.kmath.estree.internal.astring
+package space.kscience.kmath.internal.astring
 
-import space.kscience.kmath.estree.internal.estree.BaseNode
+import space.kscience.kmath.internal.estree.BaseNode
 
 internal external interface Options {
     var indent: String?

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/astring/astring.typealises.kt

@@ -0,0 +1,3 @@
+package space.kscience.kmath.internal.astring
+
+internal typealias Generator = Any

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/base64/base64.kt

@@ -0,0 +1,49 @@
+@file:Suppress(
+    "INTERFACE_WITH_SUPERCLASS",
+    "OVERRIDING_FINAL_MEMBER",
+    "RETURN_TYPE_MISMATCH_ON_OVERRIDE",
+    "CONFLICTING_OVERLOADS",
+    "NO_EXPLICIT_VISIBILITY_IN_API_MODE_WARNING",
+    "ObjectPropertyName",
+    "ClassName",
+)
+@file:JsNonModule
+@file:JsModule("js-base64")
+
+package space.kscience.kmath.internal.base64
+
+import org.khronos.webgl.Uint8Array
+
+internal external var version: Any
+
+internal external var VERSION: Any
+
+internal external var btoaPolyfill: (bin: String) -> String
+
+internal external var _btoa: (bin: String) -> String
+
+internal external var fromUint8Array: (u8a: Uint8Array, urlsafe: Boolean) -> String
+
+internal external var utob: (u: String) -> String
+
+internal external var encode: (src: String, urlsafe: Boolean) -> String
+
+internal external var encodeURI: (src: String) -> String
+
+internal external var btou: (b: String) -> String
+
+internal external var atobPolyfill: (asc: String) -> String
+
+internal external var _atob: (asc: String) -> String
+
+internal external var toUint8Array: (a: String) -> Uint8Array
+
+internal external var decode: (src: String) -> String
+
+internal external var isValid: (src: Any) -> Boolean
+
+internal external var extendString: () -> Unit
+
+internal external var extendUint8Array: () -> Unit
+
+internal external var extendBuiltins: () -> Unit

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/binaryen/index.binaryen.typealiases.kt

@@ -0,0 +1,11 @@
+@file:Suppress("PackageDirectoryMismatch", "NO_EXPLICIT_VISIBILITY_IN_API_MODE_WARNING", "KDocMissingDocumentation")
+
+package space.kscience.kmath.internal.binaryen
+
+internal typealias Type = Number
+internal typealias ExpressionRef = Number
+internal typealias FunctionRef = Number
+internal typealias GlobalRef = Number
+internal typealias ExportRef = Number
+internal typealias EventRef = Number
+internal typealias RelooperBlockRef = Number

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/emitter/emitter.kt

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package space.kscience.kmath.estree.internal.emitter
+package space.kscience.kmath.internal.emitter
 
 internal open external class Emitter {
     constructor(obj: Any)

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/estree/estree.extensions.kt

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package space.kscience.kmath.estree.internal.estree
+package space.kscience.kmath.internal.estree
 
 internal fun Program(sourceType: String, vararg body: dynamic) = object : Program {
     override var type = "Program"

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/estree/estree.kt

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package space.kscience.kmath.estree.internal.estree
+package space.kscience.kmath.internal.estree
 
 import kotlin.js.RegExp
 

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/stream/stream.kt

@@ -0,0 +1,7 @@
+package space.kscience.kmath.internal.stream
+
+import space.kscience.kmath.internal.emitter.Emitter
+
+internal open external class Stream : Emitter {
+    open fun pipe(dest: Any, options: Any): Any
+}

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/tsstdlib/lib.es2015.iterable.kt

@@ -3,7 +3,7 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-package space.kscience.kmath.estree.internal.tsstdlib
+package space.kscience.kmath.internal.tsstdlib
 
 internal external interface IteratorYieldResult<TYield> {
     var done: Boolean?

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/tsstdlib/lib.es5.kt

@@ -5,7 +5,7 @@
 
 @file:Suppress("UNUSED_TYPEALIAS_PARAMETER", "DEPRECATION")
 
-package space.kscience.kmath.estree.internal.tsstdlib
+package space.kscience.kmath.internal.tsstdlib
 
 import kotlin.js.RegExp
 
@@ -38,6 +38,8 @@ internal external interface RegExpConstructor {
     var lastMatch: String
 }
 
+internal typealias Record<K, T> = Any
+
 internal external interface ConcatArray<T> {
     var length: Number
 
@@ -85,3 +87,10 @@ internal external interface ArrayLike<T> {
 }
 
 internal typealias Extract<T, U> = Any
+
+internal external interface PromiseLike<T> {
+    fun then(
+        onfulfilled: ((value: T) -> Any?)? = definedExternally,
+        onrejected: ((reason: Any) -> Any?)? = definedExternally
+    ): PromiseLike<dynamic /* TResult1 | TResult2 */>
+}

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/webassembly/lib.dom.WebAssembly.module_dukat.kt

@@ -0,0 +1,231 @@
+@file:JsQualifier("WebAssembly")
+
+@file:Suppress(
+    "INTERFACE_WITH_SUPERCLASS",
+    "OVERRIDING_FINAL_MEMBER",
+    "RETURN_TYPE_MISMATCH_ON_OVERRIDE",
+    "NO_EXPLICIT_VISIBILITY_IN_API_MODE_WARNING",
+    "ClassName",
+)
+
+package space.kscience.kmath.internal.webassembly
+
+import space.kscience.kmath.internal.tsstdlib.PromiseLike
+import org.khronos.webgl.ArrayBuffer
+import org.khronos.webgl.ArrayBufferView
+import org.khronos.webgl.Uint8Array
+import org.w3c.fetch.Response
+import kotlin.js.Promise
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface CompileError {
+    companion object {
+        var prototype: CompileError
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface Global {
+    var value: Any
+    fun valueOf(): Any
+
+    companion object {
+        var prototype: Global
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+@JsName("Instance")
+internal external interface Instance1 {
+    var exports: Exports
+
+    companion object {
+        var prototype: Instance
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface LinkError {
+    companion object {
+        var prototype: LinkError
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface Memory {
+    var buffer: ArrayBuffer
+    fun grow(delta: Number): Number
+
+    companion object {
+        var prototype: Memory
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+@JsName("Module")
+internal external interface Module1 {
+    companion object {
+        var prototype: Module
+        fun customSections(moduleObject: Module, sectionName: String): Array<ArrayBuffer>
+        fun exports(moduleObject: Module): Array<ModuleExportDescriptor>
+        fun imports(moduleObject: Module): Array<ModuleImportDescriptor>
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface RuntimeError {
+    companion object {
+        var prototype: RuntimeError
+    }
+}
+
+@Suppress("NESTED_CLASS_IN_EXTERNAL_INTERFACE")
+internal external interface Table {
+    var length: Number
+    fun get(index: Number): Function<*>?
+    fun grow(delta: Number): Number
+    fun set(index: Number, value: Function<*>?)
+
+    companion object {
+        var prototype: Table
+    }
+}
+
+internal external interface GlobalDescriptor {
+    var mutable: Boolean?
+        get() = definedExternally
+        set(value) = definedExternally
+    var value: String /* "f32" | "f64" | "i32" | "i64" */
+}
+
+internal external interface MemoryDescriptor {
+    var initial: Number
+    var maximum: Number?
+        get() = definedExternally
+        set(value) = definedExternally
+}
+
+internal external interface ModuleExportDescriptor {
+    var kind: String /* "function" | "global" | "memory" | "table" */
+    var name: String
+}
+
+internal external interface ModuleImportDescriptor {
+    var kind: String /* "function" | "global" | "memory" | "table" */
+    var module: String
+    var name: String
+}
+
+internal external interface TableDescriptor {
+    var element: String /* "anyfunc" */
+    var initial: Number
+    var maximum: Number?
+        get() = definedExternally
+        set(value) = definedExternally
+}
+
+internal external interface WebAssemblyInstantiatedSource {
+    var instance: Instance
+    var module: Module
+}
+
+internal external fun compile(bytes: ArrayBufferView): Promise<Module>
+
+internal external fun compile(bytes: ArrayBuffer): Promise<Module>
+
+internal external fun compileStreaming(source: Response): Promise<Module>
+
+internal external fun compileStreaming(source: Promise<Response>): Promise<Module>
+
+internal external fun instantiate(
+    bytes: ArrayBufferView,
+    importObject: Imports = definedExternally,
+): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun instantiate(bytes: ArrayBufferView): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun instantiate(
+    bytes: ArrayBuffer,
+    importObject: Imports = definedExternally,
+): dynamic /* Promise | Promise */
+
+internal external fun instantiate(bytes: ArrayBuffer): dynamic /* Promise | Promise */
+
+internal external fun instantiate(moduleObject: Module, importObject: Imports = definedExternally): Promise<Instance>
+
+internal external fun instantiate(moduleObject: Module): Promise<Instance>
+
+internal external fun instantiateStreaming(
+    response: Response,
+    importObject: Imports = definedExternally,
+): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun instantiateStreaming(response: Response): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun instantiateStreaming(
+    response: PromiseLike<Response>,
+    importObject: Imports = definedExternally,
+): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun instantiateStreaming(response: PromiseLike<Response>): Promise<WebAssemblyInstantiatedSource>
+
+internal external fun validate(bytes: ArrayBufferView): Boolean
+
+internal external fun validate(bytes: ArrayBuffer): Boolean
+
+internal external interface `T$0` {
+    var name: String
+    var kind: String
+}
+
+internal external interface `T$1` {
+    var module: String
+    var name: String
+    var kind: String
+}
+
+internal open external class Module {
+    constructor(bufferSource: ArrayBuffer)
+    constructor(bufferSource: Uint8Array)
+
+    companion object {
+        fun customSections(module: Module, sectionName: String): Array<ArrayBuffer>
+        fun exports(module: Module): Array<`T$0`>
+        fun imports(module: Module): Array<`T$1`>
+    }
+}
+
+@JsName("Instance")
+internal open external class Instance(module: Module, importObject: Any = definedExternally) {
+    open var exports: Any
+}
+
+@JsName("Memory")
+internal open external class Memory1(memoryDescriptor: MemoryDescriptor) {
+    open var buffer: ArrayBuffer
+    open fun grow(numPages: Number): Number
+}
+
+@JsName("Table")
+internal open external class Table1(tableDescriptor: TableDescriptor) {
+    open var length: Number
+    open fun get(index: Number): Function<*>
+    open fun grow(numElements: Number): Number
+    open fun set(index: Number, value: Function<*>)
+}
+
+internal external fun compile(bufferSource: Uint8Array): Promise<Module>
+
+internal external interface ResultObject {
+    var module: Module
+    var instance: Instance
+}
+
+internal external fun instantiate(
+    bufferSource: Uint8Array,
+    importObject: Any = definedExternally,
+): Promise<ResultObject>
+
+internal external fun instantiate(bufferSource: Uint8Array): Promise<ResultObject>
+
+internal external fun validate(bufferSource: Uint8Array): Boolean

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/internal/webassembly/nonDeclarations.WebAssembly.kt

@@ -0,0 +1,22 @@
+@file:Suppress("INTERFACE_WITH_SUPERCLASS",
+    "OVERRIDING_FINAL_MEMBER",
+    "RETURN_TYPE_MISMATCH_ON_OVERRIDE",
+    "CONFLICTING_OVERLOADS",
+    "NO_EXPLICIT_VISIBILITY_IN_API_MODE_WARNING",
+)
+
+package space.kscience.kmath.internal.webassembly
+
+import space.kscience.kmath.internal.tsstdlib.Record
+
+internal typealias Exports = Record<String, dynamic /* Function<*> | Global | Memory | Table */>
+
+internal typealias ModuleImports = Record<String, dynamic /* Function<*> | Global | Memory | Table | Number */>
+
+internal typealias Imports = Record<String, ModuleImports>
+
+internal typealias CompileError1 = Error
+
+internal typealias LinkError1 = Error
+
+internal typealias RuntimeError1 = Error

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/wasm/internal/WasmBuilder.kt

@@ -0,0 +1,155 @@
+package space.kscience.kmath.wasm.internal
+
+import space.kscience.kmath.expressions.Expression
+import space.kscience.kmath.expressions.MST
+import space.kscience.kmath.expressions.MST.*
+import space.kscience.kmath.internal.binaryen.*
+import space.kscience.kmath.internal.webassembly.Instance
+import space.kscience.kmath.misc.StringSymbol
+import space.kscience.kmath.operations.*
+import space.kscience.kmath.internal.binaryen.Module as BinaryenModule
+import space.kscience.kmath.internal.webassembly.Module as WasmModule
+
+private val spreader = eval("(obj, args) => obj(...args)")
+
+@Suppress("UnsafeCastFromDynamic")
+internal sealed class WasmBuilder<T>(
+    val binaryenType: Type,
+    val algebra: Algebra<T>,
+    val target: MST,
+) where T : Number {
+    val keys: MutableList<String> = mutableListOf()
+    lateinit var ctx: BinaryenModule
+
+    open fun visitSymbolic(mst: MST.Symbolic): ExpressionRef {
+        try {
+            algebra.bindSymbol(mst.value)
+        } catch (ignored: Throwable) {
+            null
+        }?.let { return visitNumeric(Numeric(it)) }
+
+        var idx = keys.indexOf(mst.value)
+
+        if (idx == -1) {
+            keys += mst.value
+            idx = keys.lastIndex
+        }
+
+        return ctx.local.get(idx, binaryenType)
+    }
+
+    abstract fun visitNumeric(mst: Numeric): ExpressionRef
+
+    open fun visitUnary(mst: Unary): ExpressionRef =
+        error("Unary operation ${mst.operation} not defined in $this")
+
+    open fun visitBinary(mst: Binary): ExpressionRef =
+        error("Binary operation ${mst.operation} not defined in $this")
+
+    open fun createModule(): BinaryenModule = js("new \$module\$binaryen.Module()")
+
+    fun visit(mst: MST): ExpressionRef = when (mst) {
+        is Symbolic -> visitSymbolic(mst)
+        is Numeric -> visitNumeric(mst)
+
+        is Unary -> when {
+            algebra is NumericAlgebra && mst.value is Numeric -> visitNumeric(
+                Numeric(algebra.unaryOperationFunction(mst.operation)(algebra.number((mst.value as Numeric).value))))
+
+            else -> visitUnary(mst)
+        }
+
+        is Binary -> when {
+            algebra is NumericAlgebra && mst.left is Numeric && mst.right is Numeric -> visitNumeric(Numeric(
+                algebra.binaryOperationFunction(mst.operation)
+                    .invoke(algebra.number((mst.left as Numeric).value), algebra.number((mst.right as Numeric).value))
+            ))
+
+            else -> visitBinary(mst)
+        }
+    }
+
+    val instance by lazy {
+        val c = WasmModule(with(createModule()) {
+            ctx = this
+            val expr = visit(target)
+
+            addFunction(
+                "executable",
+                createType(Array(keys.size) { binaryenType }),
+                binaryenType,
+                arrayOf(),
+                expr
+            )
+
+            setOptimizeLevel(3)
+            optimizeFunction("executable")
+            addFunctionExport("executable", "executable")
+            val res = emitBinary()
+            dispose()
+            res
+        })
+
+        val i = Instance(c, js("{}") as Any)
+        val symbols = keys.map(::StringSymbol)
+        keys.clear()
+
+        Expression<T> { args ->
+            val params = symbols.map(args::getValue).toTypedArray()
+            spreader(i.exports.asDynamic().executable, params) as T
+        }
+    }
+}
+
+internal class DoubleWasmBuilder(target: MST) : WasmBuilder<Double>(f64, DoubleField, target) {
+    override fun createModule(): BinaryenModule = readBinary(f64StandardFunctions)
+
+    override fun visitNumeric(mst: Numeric): ExpressionRef = ctx.f64.const(mst.value)
+
+    override fun visitUnary(mst: Unary): ExpressionRef = when (mst.operation) {
+        GroupOperations.MINUS_OPERATION -> ctx.f64.neg(visit(mst.value))
+        GroupOperations.PLUS_OPERATION -> visit(mst.value)
+        PowerOperations.SQRT_OPERATION -> ctx.f64.sqrt(visit(mst.value))
+        TrigonometricOperations.SIN_OPERATION -> ctx.call("sin", arrayOf(visit(mst.value)), f64)
+        TrigonometricOperations.COS_OPERATION -> ctx.call("cos", arrayOf(visit(mst.value)), f64)
+        TrigonometricOperations.TAN_OPERATION -> ctx.call("tan", arrayOf(visit(mst.value)), f64)
+        TrigonometricOperations.ASIN_OPERATION -> ctx.call("asin", arrayOf(visit(mst.value)), f64)
+        TrigonometricOperations.ACOS_OPERATION -> ctx.call("acos", arrayOf(visit(mst.value)), f64)
+        TrigonometricOperations.ATAN_OPERATION -> ctx.call("atan", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.SINH_OPERATION -> ctx.call("sinh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.COSH_OPERATION -> ctx.call("cosh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.TANH_OPERATION -> ctx.call("tanh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.ASINH_OPERATION -> ctx.call("asinh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.ACOSH_OPERATION -> ctx.call("acosh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.ATANH_OPERATION -> ctx.call("atanh", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.EXP_OPERATION -> ctx.call("exp", arrayOf(visit(mst.value)), f64)
+        ExponentialOperations.LN_OPERATION -> ctx.call("log", arrayOf(visit(mst.value)), f64)
+        else -> super.visitUnary(mst)
+    }
+
+    override fun visitBinary(mst: Binary): ExpressionRef = when (mst.operation) {
+        GroupOperations.PLUS_OPERATION -> ctx.f64.add(visit(mst.left), visit(mst.right))
+        GroupOperations.MINUS_OPERATION -> ctx.f64.sub(visit(mst.left), visit(mst.right))
+        RingOperations.TIMES_OPERATION -> ctx.f64.mul(visit(mst.left), visit(mst.right))
+        FieldOperations.DIV_OPERATION -> ctx.f64.div(visit(mst.left), visit(mst.right))
+        PowerOperations.POW_OPERATION -> ctx.call("pow", arrayOf(visit(mst.left), visit(mst.right)), f64)
+        else -> super.visitBinary(mst)
+    }
+}
+
+internal class IntWasmBuilder(target: MST) : WasmBuilder<Int>(i32, IntRing, target) {
+    override fun visitNumeric(mst: Numeric): ExpressionRef = ctx.i32.const(mst.value)
+
+    override fun visitUnary(mst: Unary): ExpressionRef = when (mst.operation) {
+        GroupOperations.MINUS_OPERATION -> ctx.i32.sub(ctx.i32.const(0), visit(mst.value))
+        GroupOperations.PLUS_OPERATION -> visit(mst.value)
+        else -> super.visitUnary(mst)
+    }
+
+    override fun visitBinary(mst: Binary): ExpressionRef = when (mst.operation) {
+        GroupOperations.PLUS_OPERATION -> ctx.i32.add(visit(mst.left), visit(mst.right))
+        GroupOperations.MINUS_OPERATION -> ctx.i32.sub(visit(mst.left), visit(mst.right))
+        RingOperations.TIMES_OPERATION -> ctx.i32.mul(visit(mst.left), visit(mst.right))
+        else -> super.visitBinary(mst)
+    }
+}

kmath-ast/src/jsMain/kotlin/space/kscience/kmath/wasm/wasm.kt

@@ -0,0 +1,77 @@
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.estree.compileWith
+import space.kscience.kmath.expressions.Expression
+import space.kscience.kmath.expressions.MST
+import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.Symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.IntRing
+import space.kscience.kmath.wasm.internal.DoubleWasmBuilder
+import space.kscience.kmath.wasm.internal.IntWasmBuilder
+
+/**
+ * Compiles an [MST] to WASM in the context of reals.
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun DoubleField.expression(mst: MST): Expression<Double> =
+    DoubleWasmBuilder(mst).instance
+
+/**
+ * Compiles an [MST] to WASM in the context of integers.
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun IntRing.expression(mst: MST): Expression<Int> =
+    IntWasmBuilder(mst).instance
+
+/**
+ * Create a compiled expression with given [MST] and given [algebra].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compileToExpression(algebra: IntRing): Expression<Int> = compileWith(algebra)
+
+
+/**
+ * Compile given MST to expression and evaluate it against [arguments].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compile(algebra: IntRing, arguments: Map<Symbol, Int>): Int =
+    compileToExpression(algebra).invoke(arguments)
+
+
+/**
+ * Compile given MST to expression and evaluate it against [arguments].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compile(algebra: IntRing, vararg arguments: Pair<Symbol, Int>): Int =
+    compileToExpression(algebra)(*arguments)
+
+/**
+ * Create a compiled expression with given [MST] and given [algebra].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compileToExpression(algebra: DoubleField): Expression<Double> = compileWith(algebra)
+
+
+/**
+ * Compile given MST to expression and evaluate it against [arguments].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compile(algebra: DoubleField, arguments: Map<Symbol, Double>): Double =
+    compileToExpression(algebra).invoke(arguments)
+
+
+/**
+ * Compile given MST to expression and evaluate it against [arguments].
+ *
+ * @author Iaroslav Postovalov
+ */
+public fun MST.compile(algebra: DoubleField, vararg arguments: Pair<Symbol, Double>): Double =
+    compileToExpression(algebra).invoke(*arguments)

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/ast/TestExecutionTime.kt

@@ -0,0 +1,67 @@
+package space.kscience.kmath.ast
+
+import space.kscience.kmath.expressions.*
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.ExtendedField
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.math.sin
+import kotlin.random.Random
+import kotlin.test.Test
+import kotlin.time.measureTime
+import space.kscience.kmath.estree.compileToExpression as estreeCompileToExpression
+import space.kscience.kmath.wasm.compileToExpression as wasmCompileToExpression
+
+internal class TestExecutionTime {
+    private companion object {
+        private const val times = 1_000_000
+        private val x by symbol
+        private val algebra: ExtendedField<Double> = DoubleField
+
+        private val functional = DoubleField.expressionInExtendedField {
+            bindSymbol(x) * const(2.0) + const(2.0) / bindSymbol(x) - const(16.0) / sin(bindSymbol(x))
+        }
+
+        private val node = MstExtendedField {
+            bindSymbol(x) * number(2.0) + number(2.0) / bindSymbol(x) - number(16.0) / sin(bindSymbol(x))
+        }
+
+        private val mst = node.toExpression(DoubleField)
+        private val wasm = node.wasmCompileToExpression(DoubleField)
+        private val estree = node.estreeCompileToExpression(DoubleField)
+
+        // In JavaScript, the expression below is implemented like
+        //   _no_name_provided__125.prototype.invoke_178 = function (args) {
+        //    var tmp = getValue(args, raw$_get_x__3(this._$x$delegate_2)) * 2.0 + 2.0 / getValue(args, raw$_get_x__3(this._$x$delegate_2));
+        //    var tmp0_sin_0_5 = getValue(args, raw$_get_x__3(this._$x$delegate_2));
+        //    return tmp - 16.0 / Math.sin(tmp0_sin_0_5);
+        //  };
+
+        private val raw = Expression<Double> { args ->
+            args.getValue(x) * 2.0 + 2.0 / args.getValue(x) - 16.0 / sin(args.getValue(x))
+        }
+    }
+
+    private fun invokeAndSum(name: String, expr: Expression<Double>) {
+        println(name)
+        val rng = Random(0)
+        var sum = 0.0
+        measureTime { repeat(times) { sum += expr(x to rng.nextDouble()) } }.also(::println)
+    }
+
+    @Test
+    fun functionalExpression() = invokeAndSum("functional", functional)
+
+    @Test
+    fun mstExpression() = invokeAndSum("mst", mst)
+
+    @Test
+    fun wasmExpression() = invokeAndSum("wasm", wasm)
+
+    @Test
+    fun estreeExpression() = invokeAndSum("estree", wasm)
+
+    @Test
+    fun rawExpression() = invokeAndSum("raw", raw)
+}

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeConsistencyWithInterpreter.kt

@@ -8,18 +8,17 @@ package space.kscience.kmath.estree
 import space.kscience.kmath.complex.ComplexField
 import space.kscience.kmath.complex.toComplex
 import space.kscience.kmath.expressions.*
-import space.kscience.kmath.misc.Symbol
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.ByteRing
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class TestESTreeConsistencyWithInterpreter {
-
     @Test
     fun mstSpace() {
-
         val mst = MstGroup {
             binaryOperationFunction("+")(
                 unaryOperationFunction("+")(
@@ -30,12 +29,12 @@ internal class TestESTreeConsistencyWithInterpreter {
                 ),
 
                 number(1)
-            ) + bindSymbol("x") + zero
+            ) + bindSymbol(x) + zero
         }
 
         assertEquals(
-            mst.interpret(MstGroup, Symbol.x to MST.Numeric(2)),
+            mst.interpret(MstGroup, x to MST.Numeric(2)),
-            mst.compile(MstGroup, Symbol.x to MST.Numeric(2))
+            mst.compile(MstGroup, x to MST.Numeric(2))
         )
     }
 
@@ -44,7 +43,7 @@ internal class TestESTreeConsistencyWithInterpreter {
         val mst = MstRing {
             binaryOperationFunction("+")(
                 unaryOperationFunction("+")(
-                    (bindSymbol("x") - (2.toByte() + (scale(
+                    (bindSymbol(x) - (2.toByte() + (scale(
                         add(number(1), number(1)),
                         2.0
                     ) + 1.toByte()))) * 3.0 - 1.toByte()
@@ -55,24 +54,24 @@ internal class TestESTreeConsistencyWithInterpreter {
         }
 
         assertEquals(
-            mst.interpret(ByteRing, Symbol.x to 3.toByte()),
+            mst.interpret(ByteRing, x to 3.toByte()),
-            mst.compile(ByteRing, Symbol.x to 3.toByte())
+            mst.compile(ByteRing, x to 3.toByte())
         )
     }
 
     @Test
-    fun realField() {
+    fun doubleField() {
         val mst = MstField {
             +(3 - 2 + 2 * number(1) + 1.0) + binaryOperationFunction("+")(
-                (3.0 - (bindSymbol("x") + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
+                (3.0 - (bindSymbol(x) + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
                         + number(1),
                 number(1) / 2 + number(2.0) * one
             ) + zero
         }
 
         assertEquals(
-            mst.interpret(DoubleField, Symbol.x to 2.0),
+            mst.interpret(DoubleField, x to 2.0),
-            mst.compile(DoubleField, Symbol.x to 2.0)
+            mst.compile(DoubleField, x to 2.0)
         )
     }
 
@@ -80,15 +79,19 @@ internal class TestESTreeConsistencyWithInterpreter {
     fun complexField() {
         val mst = MstField {
             +(3 - 2 + 2 * number(1) + 1.0) + binaryOperationFunction("+")(
-                (3.0 - (bindSymbol("x") + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
+                (3.0 - (bindSymbol(x) + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
                         + number(1),
                 number(1) / 2 + number(2.0) * one
             ) + zero
         }
 
         assertEquals(
-            mst.interpret(ComplexField, Symbol.x to 2.0.toComplex()),
+            mst.interpret(ComplexField, x to 2.0.toComplex()),
-            mst.compile(ComplexField, Symbol.x to 2.0.toComplex())
+            mst.compile(ComplexField, x to 2.0.toComplex()),
         )
     }
+
+    private companion object {
+        private val x by symbol
+    }
 }

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeOperationsSupport.kt

@@ -5,43 +5,38 @@
 
 package space.kscience.kmath.estree
 
-import space.kscience.kmath.expressions.MstExtendedField
+import space.kscience.kmath.expressions.MstField
+import space.kscience.kmath.expressions.MstGroup
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
-import kotlin.random.Random
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class TestESTreeOperationsSupport {
     @Test
     fun testUnaryOperationInvocation() {
-        val expression = MstExtendedField { -bindSymbol("x") }.compileToExpression(DoubleField)
+        val expression = MstGroup { -bindSymbol(x) }.compileToExpression(DoubleField)
-        val res = expression("x" to 2.0)
+        val res = expression(x to 2.0)
         assertEquals(-2.0, res)
     }
 
     @Test
     fun testBinaryOperationInvocation() {
-        val expression = MstExtendedField { -bindSymbol("x") + number(1.0) }.compileToExpression(DoubleField)
+        val expression = MstGroup { -bindSymbol(x) + number(1.0) }.compileToExpression(DoubleField)
-        val res = expression("x" to 2.0)
+        val res = expression(x to 2.0)
         assertEquals(-1.0, res)
     }
 
     @Test
     fun testConstProductInvocation() {
-        val res = MstExtendedField { bindSymbol("x") * 2 }.compileToExpression(DoubleField)("x" to 2.0)
+        val res = MstField { bindSymbol(x) * 2 }.compileToExpression(DoubleField)(x to 2.0)
         assertEquals(4.0, res)
     }
 
-    @Test
+    private companion object {
-    fun testMultipleCalls() {
+        private val x by symbol
-        val e =
-            MstExtendedField { sin(bindSymbol("x")).pow(4) - 6 * bindSymbol("x") / tanh(bindSymbol("x")) }
-                .compileToExpression(DoubleField)
-        val r = Random(0)
-        var s = 0.0
-        repeat(1000000) { s += e("x" to r.nextDouble()) }
-        println(s)
     }
 }

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeSpecialization.kt

@@ -7,7 +7,9 @@ package space.kscience.kmath.estree
 
 import space.kscience.kmath.expressions.MstExtendedField
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -15,55 +17,60 @@ import kotlin.test.assertEquals
 internal class TestESTreeSpecialization {
     @Test
     fun testUnaryPlus() {
-        val expr = MstExtendedField { unaryOperationFunction("+")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("+")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(2.0, expr("x" to 2.0))
+        assertEquals(2.0, expr(x to 2.0))
     }
 
     @Test
     fun testUnaryMinus() {
-        val expr = MstExtendedField { unaryOperationFunction("-")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("-")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(-2.0, expr("x" to 2.0))
+        assertEquals(-2.0, expr(x to 2.0))
     }
 
     @Test
     fun testAdd() {
         val expr = MstExtendedField {
-            binaryOperationFunction("+")(bindSymbol("x"),
+            binaryOperationFunction("+")(
-                bindSymbol("x"))
+                bindSymbol(x),
+                bindSymbol(x),
+            )
         }.compileToExpression(DoubleField)
-        assertEquals(4.0, expr("x" to 2.0))
+        assertEquals(4.0, expr(x to 2.0))
     }
 
     @Test
     fun testSine() {
-        val expr = MstExtendedField { unaryOperationFunction("sin")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("sin")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(0.0, expr("x" to 0.0))
+        assertEquals(0.0, expr(x to 0.0))
     }
 
     @Test
-    fun testMinus() {
+    fun testSubtract() {
         val expr = MstExtendedField {
-            binaryOperationFunction("-")(bindSymbol("x"),
+            binaryOperationFunction("-")(bindSymbol(x),
-                bindSymbol("x"))
+                bindSymbol(x))
         }.compileToExpression(DoubleField)
-        assertEquals(0.0, expr("x" to 2.0))
+        assertEquals(0.0, expr(x to 2.0))
     }
 
     @Test
     fun testDivide() {
         val expr = MstExtendedField {
-            binaryOperationFunction("/")(bindSymbol("x"),
+            binaryOperationFunction("/")(bindSymbol(x), bindSymbol(x))
-                bindSymbol("x"))
         }.compileToExpression(DoubleField)
-        assertEquals(1.0, expr("x" to 2.0))
+        assertEquals(1.0, expr(x to 2.0))
     }
 
     @Test
     fun testPower() {
         val expr = MstExtendedField {
-            binaryOperationFunction("pow")(bindSymbol("x"), number(2))
+            binaryOperationFunction("pow")(bindSymbol(x), number(2))
         }.compileToExpression(DoubleField)
 
-        assertEquals(4.0, expr("x" to 2.0))
+        assertEquals(4.0, expr(x to 2.0))
+    }
+
+    private companion object {
+        private val x by symbol
     }
 }

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeVariables.kt

@@ -7,7 +7,9 @@ package space.kscience.kmath.estree
 
 import space.kscience.kmath.expressions.MstRing
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.ByteRing
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -16,13 +18,17 @@ import kotlin.test.assertFailsWith
 internal class TestESTreeVariables {
     @Test
     fun testVariable() {
-        val expr = MstRing{ bindSymbol("x") }.compileToExpression(ByteRing)
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(ByteRing)
-        assertEquals(1.toByte(), expr("x" to 1.toByte()))
+        assertEquals(1.toByte(), expr(x to 1.toByte()))
     }
 
     @Test
     fun testUndefinedVariableFails() {
-        val expr = MstRing { bindSymbol("x") }.compileToExpression(ByteRing)
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(ByteRing)
         assertFailsWith<NoSuchElementException> { expr() }
     }
+
+    private companion object {
+        private val x by symbol
+    }
 }

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/wasm/TestWasmConsistencyWithInterpreter.kt

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2018-2021 KMath contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.expressions.MstField
+import space.kscience.kmath.expressions.MstRing
+import space.kscience.kmath.expressions.interpret
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.IntRing
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+internal class TestWasmConsistencyWithInterpreter {
+    @Test
+    fun intRing() {
+        val mst = MstRing {
+            binaryOperationFunction("+")(
+                unaryOperationFunction("+")(
+                    (bindSymbol(x) - (2.toByte() + (scale(
+                        add(number(1), number(1)),
+                        2.0
+                    ) + 1.toByte()))) * 3.0 - 1.toByte()
+                ),
+
+                number(1)
+            ) * number(2)
+        }
+
+        assertEquals(
+            mst.interpret(IntRing, x to 3),
+            mst.compile(IntRing, x to 3)
+        )
+    }
+
+    @Test
+    fun doubleField() {
+        val mst = MstField {
+            +(3 - 2 + 2 * number(1) + 1.0) + binaryOperationFunction("+")(
+                (3.0 - (bindSymbol(x) + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
+                        + number(1),
+                number(1) / 2 + number(2.0) * one
+            ) + zero
+        }
+
+        assertEquals(
+            mst.interpret(DoubleField, x to 2.0),
+            mst.compile(DoubleField, x to 2.0)
+        )
+    }
+
+    private companion object {
+        private val x by symbol
+    }
+}

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/wasm/TestWasmOperationsSupport.kt

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2018-2021 KMath contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.expressions.MstField
+import space.kscience.kmath.expressions.MstGroup
+import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+internal class TestWasmOperationsSupport {
+    @Test
+    fun testUnaryOperationInvocation() {
+        val expression = MstGroup { -bindSymbol(x) }.compileToExpression(DoubleField)
+        val res = expression(x to 2.0)
+        assertEquals(-2.0, res)
+    }
+
+    @Test
+    fun testBinaryOperationInvocation() {
+        val expression = MstGroup { -bindSymbol(x) + number(1.0) }.compileToExpression(DoubleField)
+        val res = expression(x to 2.0)
+        assertEquals(-1.0, res)
+    }
+
+    @Test
+    fun testConstProductInvocation() {
+        val res = MstField { bindSymbol(x) * 2 }.compileToExpression(DoubleField)(x to 2.0)
+        assertEquals(4.0, res)
+    }
+
+    private companion object {
+        private val x by symbol
+    }
+}

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/wasm/TestWasmSpecialization.kt

@@ -0,0 +1,76 @@
+/*
+ * Copyright 2018-2021 KMath contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.expressions.MstExtendedField
+import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+internal class TestWasmSpecialization {
+    @Test
+    fun testUnaryPlus() {
+        val expr = MstExtendedField { unaryOperationFunction("+")(bindSymbol(x)) }.compileToExpression(DoubleField)
+        assertEquals(2.0, expr(x to 2.0))
+    }
+
+    @Test
+    fun testUnaryMinus() {
+        val expr = MstExtendedField { unaryOperationFunction("-")(bindSymbol(x)) }.compileToExpression(DoubleField)
+        assertEquals(-2.0, expr(x to 2.0))
+    }
+
+    @Test
+    fun testAdd() {
+        val expr = MstExtendedField {
+            binaryOperationFunction("+")(
+                bindSymbol(x),
+                bindSymbol(x),
+            )
+        }.compileToExpression(DoubleField)
+        assertEquals(4.0, expr(x to 2.0))
+    }
+
+    @Test
+    fun testSine() {
+        val expr = MstExtendedField { unaryOperationFunction("sin")(bindSymbol(x)) }.compileToExpression(DoubleField)
+        assertEquals(0.0, expr(x to 0.0))
+    }
+
+    @Test
+    fun testSubtract() {
+        val expr = MstExtendedField {
+            binaryOperationFunction("-")(bindSymbol(x),
+                bindSymbol(x))
+        }.compileToExpression(DoubleField)
+        assertEquals(0.0, expr(x to 2.0))
+    }
+
+    @Test
+    fun testDivide() {
+        val expr = MstExtendedField {
+            binaryOperationFunction("/")(bindSymbol(x), bindSymbol(x))
+        }.compileToExpression(DoubleField)
+        assertEquals(1.0, expr(x to 2.0))
+    }
+
+    @Test
+    fun testPower() {
+        val expr = MstExtendedField {
+            binaryOperationFunction("pow")(bindSymbol(x), number(2))
+        }.compileToExpression(DoubleField)
+
+        assertEquals(4.0, expr(x to 2.0))
+    }
+
+    private companion object {
+        private val x by symbol
+    }
+}

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/wasm/TestWasmSpecific.kt

@@ -0,0 +1,48 @@
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.expressions.MstExtendedField
+import space.kscience.kmath.expressions.MstRing
+import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.IntRing
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+internal class TestWasmSpecific {
+    @Test
+    fun int() {
+        val res = MstRing { number(100000000) + number(10000000) }.compile(IntRing)
+        assertEquals(110000000, res)
+    }
+
+    @Test
+    fun real() {
+        val res = MstExtendedField { number(100000000) + number(2).pow(10) }.compile(DoubleField)
+        assertEquals(100001024.0, res)
+    }
+
+    @Test
+    fun argsPassing() {
+        val res = MstExtendedField { bindSymbol(y) + bindSymbol(x).pow(10) }.compile(
+            DoubleField,
+            x to 2.0,
+            y to 100000000.0,
+        )
+
+        assertEquals(100001024.0, res)
+    }
+
+    @Test
+    fun powFunction() {
+        val expr = MstExtendedField { bindSymbol(x).pow(1.0 / 6.0) }.compileToExpression(DoubleField)
+        assertEquals(0.9730585187140817, expr(x to 0.8488554755054833))
+    }
+
+    private companion object {
+        private val x by symbol
+        private val y by symbol
+    }
+}

kmath-ast/src/jsTest/kotlin/space/kscience/kmath/wasm/TestWasmVariables.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2018-2021 KMath contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package space.kscience.kmath.wasm
+
+import space.kscience.kmath.expressions.MstRing
+import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
+import space.kscience.kmath.operations.IntRing
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertFailsWith
+
+internal class TestWasmVariables {
+    @Test
+    fun testVariable() {
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(IntRing)
+        assertEquals(1, expr(x to 1))
+    }
+
+    @Test
+    fun testUndefinedVariableFails() {
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(IntRing)
+        assertFailsWith<NoSuchElementException> { expr() }
+    }
+
+    private companion object {
+        private val x by symbol
+    }
+}

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmConsistencyWithInterpreter.kt

@@ -8,18 +8,17 @@ package space.kscience.kmath.asm
 import space.kscience.kmath.complex.ComplexField
 import space.kscience.kmath.complex.toComplex
 import space.kscience.kmath.expressions.*
-import space.kscience.kmath.misc.Symbol.Companion.x
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.ByteRing
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class TestAsmConsistencyWithInterpreter {
-
     @Test
     fun mstSpace() {
-
         val mst = MstGroup {
             binaryOperationFunction("+")(
                 unaryOperationFunction("+")(
@@ -30,7 +29,7 @@ internal class TestAsmConsistencyWithInterpreter {
                 ),
 
                 number(1)
-            ) + bindSymbol("x") + zero
+            ) + bindSymbol(x) + zero
         }
 
         assertEquals(
@@ -44,7 +43,7 @@ internal class TestAsmConsistencyWithInterpreter {
         val mst = MstRing {
             binaryOperationFunction("+")(
                 unaryOperationFunction("+")(
-                    (bindSymbol("x") - (2.toByte() + (scale(
+                    (bindSymbol(x) - (2.toByte() + (scale(
                         add(number(1), number(1)),
                         2.0
                     ) + 1.toByte()))) * 3.0 - 1.toByte()
@@ -61,10 +60,10 @@ internal class TestAsmConsistencyWithInterpreter {
     }
 
     @Test
-    fun realField() {
+    fun doubleField() {
         val mst = MstField {
             +(3 - 2 + 2 * number(1) + 1.0) + binaryOperationFunction("+")(
-                (3.0 - (bindSymbol("x") + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
+                (3.0 - (bindSymbol(x) + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
                         + number(1),
                 number(1) / 2 + number(2.0) * one
             ) + zero
@@ -80,7 +79,7 @@ internal class TestAsmConsistencyWithInterpreter {
     fun complexField() {
         val mst = MstField {
             +(3 - 2 + 2 * number(1) + 1.0) + binaryOperationFunction("+")(
-                (3.0 - (bindSymbol("x") + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
+                (3.0 - (bindSymbol(x) + (scale(add(number(1.0), number(1.0)), 2.0) + 1.0))) * 3 - 1.0
                         + number(1),
                 number(1) / 2 + number(2.0) * one
             ) + zero
@@ -91,4 +90,8 @@ internal class TestAsmConsistencyWithInterpreter {
             mst.compile(ComplexField, x to 2.0.toComplex())
         )
     }
+
+    private companion object {
+        private val x by symbol
+    }
 }

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmOperationsSupport.kt

@@ -5,45 +5,38 @@
 
 package space.kscience.kmath.asm
 
-import space.kscience.kmath.expressions.MstExtendedField
 import space.kscience.kmath.expressions.MstField
 import space.kscience.kmath.expressions.MstGroup
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
-import kotlin.random.Random
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
 internal class TestAsmOperationsSupport {
     @Test
     fun testUnaryOperationInvocation() {
-        val expression = MstGroup { -bindSymbol("x") }.compileToExpression(DoubleField)
+        val expression = MstGroup { -bindSymbol(x) }.compileToExpression(DoubleField)
-        val res = expression("x" to 2.0)
+        val res = expression(x to 2.0)
         assertEquals(-2.0, res)
     }
 
     @Test
     fun testBinaryOperationInvocation() {
-        val expression = MstGroup { -bindSymbol("x") + number(1.0) }.compileToExpression(DoubleField)
+        val expression = MstGroup { -bindSymbol(x) + number(1.0) }.compileToExpression(DoubleField)
-        val res = expression("x" to 2.0)
+        val res = expression(x to 2.0)
         assertEquals(-1.0, res)
     }
 
     @Test
     fun testConstProductInvocation() {
-        val res = MstField { bindSymbol("x") * 2 }.compileToExpression(DoubleField)("x" to 2.0)
+        val res = MstField { bindSymbol(x) * 2 }.compileToExpression(DoubleField)(x to 2.0)
         assertEquals(4.0, res)
     }
 
-    @Test
+    private companion object {
-    fun testMultipleCalls() {
+        private val x by symbol
-        val e =
-            MstExtendedField { sin(bindSymbol("x")).pow(4) - 6 * bindSymbol("x") / tanh(bindSymbol("x")) }
-                .compileToExpression(DoubleField)
-        val r = Random(0)
-        var s = 0.0
-        repeat(1000000) { s += e("x" to r.nextDouble()) }
-        println(s)
     }
 }

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmSpecialization.kt

@@ -7,7 +7,9 @@ package space.kscience.kmath.asm
 
 import space.kscience.kmath.expressions.MstExtendedField
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -15,55 +17,60 @@ import kotlin.test.assertEquals
 internal class TestAsmSpecialization {
     @Test
     fun testUnaryPlus() {
-        val expr = MstExtendedField { unaryOperationFunction("+")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("+")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(2.0, expr("x" to 2.0))
+        assertEquals(2.0, expr(x to 2.0))
     }
 
     @Test
     fun testUnaryMinus() {
-        val expr = MstExtendedField { unaryOperationFunction("-")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("-")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(-2.0, expr("x" to 2.0))
+        assertEquals(-2.0, expr(x to 2.0))
     }
 
     @Test
     fun testAdd() {
         val expr = MstExtendedField {
-            binaryOperationFunction("+")(bindSymbol("x"),
+            binaryOperationFunction("+")(
-                bindSymbol("x"))
+                bindSymbol(x),
+                bindSymbol(x),
+            )
         }.compileToExpression(DoubleField)
-        assertEquals(4.0, expr("x" to 2.0))
+        assertEquals(4.0, expr(x to 2.0))
     }
 
     @Test
     fun testSine() {
-        val expr = MstExtendedField { unaryOperationFunction("sin")(bindSymbol("x")) }.compileToExpression(DoubleField)
+        val expr = MstExtendedField { unaryOperationFunction("sin")(bindSymbol(x)) }.compileToExpression(DoubleField)
-        assertEquals(0.0, expr("x" to 0.0))
+        assertEquals(0.0, expr(x to 0.0))
     }
 
     @Test
-    fun testMinus() {
+    fun testSubtract() {
         val expr = MstExtendedField {
-            binaryOperationFunction("-")(bindSymbol("x"),
+            binaryOperationFunction("-")(bindSymbol(x),
-                bindSymbol("x"))
+                bindSymbol(x))
         }.compileToExpression(DoubleField)
-        assertEquals(0.0, expr("x" to 2.0))
+        assertEquals(0.0, expr(x to 2.0))
     }
 
     @Test
     fun testDivide() {
         val expr = MstExtendedField {
-            binaryOperationFunction("/")(bindSymbol("x"),
+            binaryOperationFunction("/")(bindSymbol(x), bindSymbol(x))
-                bindSymbol("x"))
         }.compileToExpression(DoubleField)
-        assertEquals(1.0, expr("x" to 2.0))
+        assertEquals(1.0, expr(x to 2.0))
     }
 
     @Test
     fun testPower() {
         val expr = MstExtendedField {
-            binaryOperationFunction("pow")(bindSymbol("x"), number(2))
+            binaryOperationFunction("pow")(bindSymbol(x), number(2))
         }.compileToExpression(DoubleField)
 
-        assertEquals(4.0, expr("x" to 2.0))
+        assertEquals(4.0, expr(x to 2.0))
+    }
+
+    private companion object {
+        private val x by symbol
     }
 }

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmVariables.kt

@@ -7,7 +7,9 @@ package space.kscience.kmath.asm
 
 import space.kscience.kmath.expressions.MstRing
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.ByteRing
+import space.kscience.kmath.operations.bindSymbol
 import space.kscience.kmath.operations.invoke
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -16,13 +18,17 @@ import kotlin.test.assertFailsWith
 internal class TestAsmVariables {
     @Test
     fun testVariable() {
-        val expr = MstRing { bindSymbol("x") }.compileToExpression(ByteRing)
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(ByteRing)
-        assertEquals(1.toByte(), expr("x" to 1.toByte()))
+        assertEquals(1.toByte(), expr(x to 1.toByte()))
     }
 
     @Test
     fun testUndefinedVariableFails() {
-        val expr = MstRing { bindSymbol("x") }.compileToExpression(ByteRing)
+        val expr = MstRing { bindSymbol(x) }.compileToExpression(ByteRing)
         assertFailsWith<NoSuchElementException> { expr() }
     }
+
+    private companion object {
+        private val x by symbol
+    }
 }

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/ast/rendering/TestFeatures.kt

@@ -1,100 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast.rendering
-
-import space.kscience.kmath.ast.rendering.TestUtils.testLatex
-import space.kscience.kmath.expressions.MST.Numeric
-import kotlin.test.Test
-
-internal class TestFeatures {
-    @Test
-    fun printSymbolic() = testLatex("x", "x")
-
-    @Test
-    fun printNumeric() {
-        val num = object : Number() {
-            override fun toByte(): Byte = throw UnsupportedOperationException()
-            override fun toChar(): Char = throw UnsupportedOperationException()
-            override fun toDouble(): Double = throw UnsupportedOperationException()
-            override fun toFloat(): Float = throw UnsupportedOperationException()
-            override fun toInt(): Int = throw UnsupportedOperationException()
-            override fun toLong(): Long = throw UnsupportedOperationException()
-            override fun toShort(): Short = throw UnsupportedOperationException()
-            override fun toString(): String = "foo"
-        }
-
-        testLatex(Numeric(num), "foo")
-    }
-
-    @Test
-    fun prettyPrintFloats() {
-        testLatex(Numeric(Double.NaN), "NaN")
-        testLatex(Numeric(Double.POSITIVE_INFINITY), "\\infty")
-        testLatex(Numeric(Double.NEGATIVE_INFINITY), "-\\infty")
-        testLatex(Numeric(1.0), "1")
-        testLatex(Numeric(-1.0), "-1")
-        testLatex(Numeric(1.42), "1.42")
-        testLatex(Numeric(-1.42), "-1.42")
-        testLatex(Numeric(1.1e10), "1.1\\times10^{10}")
-        testLatex(Numeric(1.1e-10), "1.1\\times10^{-10}")
-        testLatex(Numeric(-1.1e-10), "-1.1\\times10^{-10}")
-        testLatex(Numeric(-1.1e10), "-1.1\\times10^{10}")
-    }
-
-    @Test
-    fun prettyPrintIntegers() {
-        testLatex(Numeric(42), "42")
-        testLatex(Numeric(-42), "-42")
-    }
-
-    @Test
-    fun prettyPrintPi() {
-        testLatex("pi", "\\pi")
-    }
-
-    @Test
-    fun binaryPlus() = testLatex("2+2", "2+2")
-
-    @Test
-    fun binaryMinus() = testLatex("2-2", "2-2")
-
-    @Test
-    fun fraction() = testLatex("2/2", "\\frac{2}{2}")
-
-    @Test
-    fun binaryOperator() = testLatex("f(x, y)", "\\operatorname{f}\\left(x,y\\right)")
-
-    @Test
-    fun unaryOperator() = testLatex("f(x)", "\\operatorname{f}\\,\\left(x\\right)")
-
-    @Test
-    fun power() = testLatex("x^y", "x^{y}")
-
-    @Test
-    fun squareRoot() = testLatex("sqrt(x)", "\\sqrt{x}")
-
-    @Test
-    fun exponential() = testLatex("exp(x)", "e^{x}")
-
-    @Test
-    fun multiplication() = testLatex("x*1", "x\\times1")
-
-    @Test
-    fun inverseTrigonometry() {
-        testLatex("asin(x)", "\\operatorname{sin}^{-1}\\,\\left(x\\right)")
-        testLatex("asinh(x)", "\\operatorname{sinh}^{-1}\\,\\left(x\\right)")
-        testLatex("acos(x)", "\\operatorname{cos}^{-1}\\,\\left(x\\right)")
-        testLatex("acosh(x)", "\\operatorname{cosh}^{-1}\\,\\left(x\\right)")
-        testLatex("atan(x)", "\\operatorname{tan}^{-1}\\,\\left(x\\right)")
-        testLatex("atanh(x)", "\\operatorname{tanh}^{-1}\\,\\left(x\\right)")
-    }
-
-//    @Test
-//    fun unaryPlus() {
-//        testLatex("+1", "+1")
-//        testLatex("+1", "++1")
-//    }
-}

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/ast/rendering/TestLatex.kt

@@ -1,73 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast.rendering
-
-import space.kscience.kmath.ast.rendering.TestUtils.testLatex
-import space.kscience.kmath.expressions.MST
-import space.kscience.kmath.operations.GroupOperations
-import kotlin.test.Test
-
-internal class TestLatex {
-    @Test
-    fun number() = testLatex("42", "42")
-
-    @Test
-    fun symbol() = testLatex("x", "x")
-
-    @Test
-    fun operatorName() = testLatex("sin(1)", "\\operatorname{sin}\\,\\left(1\\right)")
-
-    @Test
-    fun specialSymbol() {
-        testLatex(MST.Numeric(Double.POSITIVE_INFINITY), "\\infty")
-        testLatex("pi", "\\pi")
-    }
-
-    @Test
-    fun operand() {
-        testLatex("sin(1)", "\\operatorname{sin}\\,\\left(1\\right)")
-        testLatex("1+1", "1+1")
-    }
-
-    @Test
-    fun unaryOperator() = testLatex("sin(1)", "\\operatorname{sin}\\,\\left(1\\right)")
-
-    @Test
-    fun unaryPlus() = testLatex(MST.Unary(GroupOperations.PLUS_OPERATION, MST.Numeric(1)), "+1")
-
-    @Test
-    fun unaryMinus() = testLatex("-x", "-x")
-
-    @Test
-    fun radical() = testLatex("sqrt(x)", "\\sqrt{x}")
-
-    @Test
-    fun superscript() = testLatex("x^y", "x^{y}")
-
-    @Test
-    fun subscript() = testLatex(SubscriptSyntax("", SymbolSyntax("x"), NumberSyntax("123")), "x_{123}")
-
-    @Test
-    fun binaryOperator() = testLatex("f(x, y)", "\\operatorname{f}\\left(x,y\\right)")
-
-    @Test
-    fun binaryPlus() = testLatex("x+x", "x+x")
-
-    @Test
-    fun binaryMinus() = testLatex("x-x", "x-x")
-
-    @Test
-    fun fraction() = testLatex("x/x", "\\frac{x}{x}")
-
-    @Test
-    fun radicalWithIndex() = testLatex(RadicalWithIndexSyntax("", SymbolSyntax("x"), SymbolSyntax("y")), "\\sqrt[x]{y}")
-
-    @Test
-    fun multiplication() {
-        testLatex("x*1", "x\\times1")
-        testLatex("1*x", "1\\,x")
-    }
-}

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/ast/rendering/TestMathML.kt

@@ -1,92 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast.rendering
-
-import space.kscience.kmath.ast.rendering.TestUtils.testMathML
-import space.kscience.kmath.expressions.MST
-import space.kscience.kmath.operations.GroupOperations
-import kotlin.test.Test
-
-internal class TestMathML {
-    @Test
-    fun number() = testMathML("42", "<mn>42</mn>")
-
-    @Test
-    fun symbol() = testMathML("x", "<mi>x</mi>")
-
-    @Test
-    fun operatorName() = testMathML(
-        "sin(1)",
-        "<mo>sin</mo><mspace width=\"0.167em\"></mspace><mfenced open=\"(\" close=\")\" separators=\"\"><mn>1</mn></mfenced>",
-    )
-
-    @Test
-    fun specialSymbol() {
-        testMathML(MST.Numeric(Double.POSITIVE_INFINITY), "<mo>&infin;</mo>")
-        testMathML("pi", "<mo>&pi;</mo>")
-    }
-
-    @Test
-    fun operand() {
-        testMathML(
-            "sin(1)",
-            "<mo>sin</mo><mspace width=\"0.167em\"></mspace><mfenced open=\"(\" close=\")\" separators=\"\"><mn>1</mn></mfenced>",
-        )
-
-        testMathML("1+1", "<mn>1</mn><mo>+</mo><mn>1</mn>")
-    }
-
-    @Test
-    fun unaryOperator() = testMathML(
-        "sin(1)",
-        "<mo>sin</mo><mspace width=\"0.167em\"></mspace><mfenced open=\"(\" close=\")\" separators=\"\"><mn>1</mn></mfenced>",
-    )
-
-    @Test
-    fun unaryPlus() =
-        testMathML(MST.Unary(GroupOperations.PLUS_OPERATION, MST.Numeric(1)), "<mo>+</mo><mn>1</mn>")
-
-    @Test
-    fun unaryMinus() = testMathML("-x", "<mo>-</mo><mi>x</mi>")
-
-    @Test
-    fun radical() = testMathML("sqrt(x)", "<msqrt><mi>x</mi></msqrt>")
-
-    @Test
-    fun superscript() = testMathML("x^y", "<msup><mrow><mi>x</mi></mrow><mrow><mi>y</mi></mrow></msup>")
-
-    @Test
-    fun subscript() = testMathML(
-        SubscriptSyntax("", SymbolSyntax("x"), NumberSyntax("123")),
-        "<msub><mrow><mi>x</mi></mrow><mrow><mn>123</mn></mrow></msub>",
-    )
-
-    @Test
-    fun binaryOperator() = testMathML(
-        "f(x, y)",
-        "<mo>f</mo><mfenced open=\"(\" close=\")\" separators=\"\"><mi>x</mi><mo>,</mo><mi>y</mi></mfenced>",
-    )
-
-    @Test
-    fun binaryPlus() = testMathML("x+x", "<mi>x</mi><mo>+</mo><mi>x</mi>")
-
-    @Test
-    fun binaryMinus() = testMathML("x-x", "<mi>x</mi><mo>-</mo><mi>x</mi>")
-
-    @Test
-    fun fraction() = testMathML("x/x", "<mfrac><mrow><mi>x</mi></mrow><mrow><mi>x</mi></mrow></mfrac>")
-
-    @Test
-    fun radicalWithIndex() =
-        testMathML(RadicalWithIndexSyntax("", SymbolSyntax("x"), SymbolSyntax("y")),
-            "<mroot><mrow><mi>y</mi></mrow><mrow><mi>x</mi></mrow></mroot>")
-
-    @Test
-    fun multiplication() {
-        testMathML("x*1", "<mi>x</mi><mo>&times;</mo><mn>1</mn>")
-        testMathML("1*x", "<mn>1</mn><mspace width=\"0.167em\"></mspace><mi>x</mi>")
-    }
-}

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/ast/rendering/TestStages.kt

@@ -1,33 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast.rendering
-
-import space.kscience.kmath.ast.rendering.TestUtils.testLatex
-import kotlin.test.Test
-
-internal class TestStages {
-    @Test
-    fun betterMultiplication() {
-        testLatex("a*1", "a\\times1")
-        testLatex("1*(2/3)", "1\\times\\left(\\frac{2}{3}\\right)")
-        testLatex("1*1", "1\\times1")
-        testLatex("2e10", "2\\times10^{10}")
-        testLatex("2*x", "2\\,x")
-        testLatex("2*(x+1)", "2\\,\\left(x+1\\right)")
-        testLatex("x*y", "x\\,y")
-    }
-
-    @Test
-    fun parentheses() {
-        testLatex("(x+1)", "x+1")
-        testLatex("x*x*x", "x\\,x\\,x")
-        testLatex("(x+x)*x", "\\left(x+x\\right)\\,x")
-        testLatex("x+x*x", "x+x\\,x")
-        testLatex("x+x^x*x+x", "x+x^{x}\\,x+x")
-        testLatex("(x+x)^x+x*x", "\\left(x+x\\right)^{x}+x\\,x")
-        testLatex("x^(x+x)", "x^{x+x}")
-    }
-}

kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/ast/rendering/TestUtils.kt

@@ -1,46 +0,0 @@
-/*
- * Copyright 2018-2021 KMath contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package space.kscience.kmath.ast.rendering
-
-import space.kscience.kmath.ast.parseMath
-import space.kscience.kmath.expressions.MST
-import kotlin.test.assertEquals
-
-internal object TestUtils {
-    private fun mathSyntax(mst: MST) = FeaturedMathRendererWithPostProcess.Default.render(mst)
-    private fun latex(mst: MST) = LatexSyntaxRenderer.renderWithStringBuilder(mathSyntax(mst))
-    private fun mathML(mst: MST) = MathMLSyntaxRenderer.renderWithStringBuilder(mathSyntax(mst))
-
-    internal fun testLatex(mst: MST, expectedLatex: String) = assertEquals(
-        expected = expectedLatex,
-        actual = latex(mst),
-    )
-
-    internal fun testLatex(expression: String, expectedLatex: String) = assertEquals(
-        expected = expectedLatex,
-        actual = latex(expression.parseMath()),
-    )
-
-    internal fun testLatex(expression: MathSyntax, expectedLatex: String) = assertEquals(
-        expected = expectedLatex,
-        actual = LatexSyntaxRenderer.renderWithStringBuilder(expression),
-    )
-
-    internal fun testMathML(mst: MST, expectedMathML: String) = assertEquals(
-        expected = "<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow>$expectedMathML</mrow></math>",
-        actual = mathML(mst),
-    )
-
-    internal fun testMathML(expression: String, expectedMathML: String) = assertEquals(
-        expected = "<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow>$expectedMathML</mrow></math>",
-        actual = mathML(expression.parseMath()),
-    )
-
-    internal fun testMathML(expression: MathSyntax, expectedMathML: String) = assertEquals(
-        expected = "<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow>$expectedMathML</mrow></math>",
-        actual = MathMLSyntaxRenderer.renderWithStringBuilder(expression),
-    )
-}

kmath-complex/README.md

@@ -8,7 +8,7 @@ Complex and hypercomplex number systems in KMath.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-complex:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-complex:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -19,7 +19,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-complex:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-complex:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -31,6 +31,6 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-complex:0.3.0-dev-6")
+    implementation("space.kscience:kmath-complex:0.3.0-dev-7")
 }
 ```

kmath-complex/build.gradle.kts

@@ -1,5 +1,3 @@
-import ru.mipt.npm.gradle.Maturity
-
 /*
  * Copyright 2018-2021 KMath contributors.
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
@@ -21,7 +19,7 @@ kotlin.sourceSets {
 
 readme {
     description = "Complex numbers and quaternions."
-    maturity = Maturity.PROTOTYPE
+    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
     propertyByTemplate("artifact", rootProject.file("docs/templates/ARTIFACT-TEMPLATE.md"))
 
     feature(

kmath-core/README.md

@@ -15,7 +15,7 @@ performance calculations to code generation.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-core:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-core:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -26,7 +26,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-core:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-core:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -38,6 +38,6 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-core:0.3.0-dev-6")
+    implementation("space.kscience:kmath-core:0.3.0-dev-7")
 }
 ```

kmath-core/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -21,7 +19,7 @@ kotlin.sourceSets {
 
 readme {
     description = "Core classes, algebra definitions, basic linear algebra"
-    maturity = Maturity.DEVELOPMENT
+    maturity = ru.mipt.npm.gradle.Maturity.DEVELOPMENT
     propertyByTemplate("artifact", rootProject.file("docs/templates/ARTIFACT-TEMPLATE.md"))
 
     feature(

kmath-core/src/commonTest/kotlin/space/kscience/kmath/expressions/InterpretTest.kt

@@ -0,0 +1,18 @@
+package space.kscience.kmath.expressions
+
+import space.kscience.kmath.misc.Symbol
+import space.kscience.kmath.operations.DoubleField
+import space.kscience.kmath.operations.bindSymbol
+import space.kscience.kmath.operations.invoke
+import kotlin.test.Test
+
+internal class InterpretTest {
+    @Test
+    fun interpretation() {
+        val expr = MstField {
+            val x = bindSymbol(Symbol.x)
+            x * 2.0 + number(2.0) / x - 16.0
+        }.toExpression(DoubleField)
+        expr(Symbol.x to 2.2)
+    }
+}

kmath-coroutines/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -29,5 +27,5 @@ kotlin.sourceSets {
 }
 
 readme {
-    maturity = Maturity.EXPERIMENTAL
+    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
 }

kmath-ejml/README.md

@@ -9,7 +9,7 @@ EJML based linear algebra implementation.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-ejml:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-ejml:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -20,7 +20,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-ejml:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-ejml:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -32,6 +32,6 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-ejml:0.3.0-dev-6")
+    implementation("space.kscience:kmath-ejml:0.3.0-dev-7")
 }
 ```

kmath-for-real/README.md

@@ -9,7 +9,7 @@ Specialization of KMath APIs for Double numbers.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-for-real:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-for-real:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -20,7 +20,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-for-real:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-for-real:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -32,6 +32,6 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-for-real:0.3.0-dev-6")
+    implementation("space.kscience:kmath-for-real:0.3.0-dev-7")
 }
 ```

kmath-functions/README.md

@@ -11,7 +11,7 @@ Functions and interpolations.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-functions:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-functions:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -22,7 +22,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-functions:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-functions:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -34,6 +34,6 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-functions:0.3.0-dev-6")
+    implementation("space.kscience:kmath-functions:0.3.0-dev-7")
 }
 ```

kmath-geometry/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -17,5 +15,5 @@ kotlin.sourceSets.commonMain {
 }
 
 readme {
-    maturity = Maturity.PROTOTYPE
+    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
 }

kmath-histograms/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -28,5 +26,5 @@ kotlin.sourceSets {
 }
 
 readme {
-    maturity = Maturity.PROTOTYPE
+    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
 }

kmath-kotlingrad/src/test/kotlin/space/kscience/kmath/kotlingrad/AdaptingTests.kt

@@ -10,6 +10,7 @@ import space.kscience.kmath.asm.compileToExpression
 import space.kscience.kmath.ast.parseMath
 import space.kscience.kmath.expressions.MstAlgebra
 import space.kscience.kmath.expressions.invoke
+import space.kscience.kmath.misc.symbol
 import space.kscience.kmath.operations.DoubleField
 import kotlin.test.Test
 import kotlin.test.assertEquals
@@ -19,8 +20,8 @@ import kotlin.test.fail
 internal class AdaptingTests {
     @Test
     fun symbol() {
-        val c1 = MstAlgebra.bindSymbol("x")
+        val c1 = MstAlgebra.bindSymbol(x.identity)
-        assertTrue(c1.toSVar<KMathNumber<Double, DoubleField>>().name == "x")
+        assertEquals(x.identity, c1.toSVar<KMathNumber<Double, DoubleField>>().name)
         val c2 = "kitten".parseMath().toSFun<KMathNumber<Double, DoubleField>>()
         if (c2 is SVar) assertTrue(c2.name == "kitten") else fail()
     }
@@ -45,23 +46,27 @@ internal class AdaptingTests {
 
     @Test
     fun simpleFunctionDerivative() {
-        val x = MstAlgebra.bindSymbol("x").toSVar<KMathNumber<Double, DoubleField>>()
+        val xSVar = MstAlgebra.bindSymbol(x.identity).toSVar<KMathNumber<Double, DoubleField>>()
         val quadratic = "x^2-4*x-44".parseMath().toSFun<KMathNumber<Double, DoubleField>>()
-        val actualDerivative = quadratic.d(x).toMst().compileToExpression(DoubleField)
+        val actualDerivative = quadratic.d(xSVar).toMst().compileToExpression(DoubleField)
         val expectedDerivative = "2*x-4".parseMath().compileToExpression(DoubleField)
-        assertEquals(actualDerivative("x" to 123.0), expectedDerivative("x" to 123.0))
+        assertEquals(actualDerivative(x to 123.0), expectedDerivative(x to 123.0))
     }
 
     @Test
     fun moreComplexDerivative() {
-        val x = MstAlgebra.bindSymbol("x").toSVar<KMathNumber<Double, DoubleField>>()
+        val xSVar = MstAlgebra.bindSymbol(x.identity).toSVar<KMathNumber<Double, DoubleField>>()
         val composition = "-sqrt(sin(x^2)-cos(x)^2-16*x)".parseMath().toSFun<KMathNumber<Double, DoubleField>>()
-        val actualDerivative = composition.d(x).toMst().compileToExpression(DoubleField)
+        val actualDerivative = composition.d(xSVar).toMst().compileToExpression(DoubleField)
 
-        val expectedDerivative =
+        val expectedDerivative = "-(2*x*cos(x^2)+2*sin(x)*cos(x)-16)/(2*sqrt(sin(x^2)-16*x-cos(x)^2))"
-            "-(2*x*cos(x^2)+2*sin(x)*cos(x)-16)/(2*sqrt(sin(x^2)-16*x-cos(x)^2))".parseMath().compileToExpression(DoubleField)
+            .parseMath()
+            .compileToExpression(DoubleField)
 
+        assertEquals(actualDerivative(x to 0.1), expectedDerivative(x to 0.1))
+    }
 
-        assertEquals(actualDerivative("x" to 0.1), expectedDerivative("x" to 0.1))
+    private companion object {
+        private val x by symbol
     }
 }

kmath-nd4j/README.md

@@ -9,7 +9,7 @@ ND4J based implementations of KMath abstractions.
 
 ## Artifact:
 
-The Maven coordinates of this project are `space.kscience:kmath-nd4j:0.3.0-dev-6`.
+The Maven coordinates of this project are `space.kscience:kmath-nd4j:0.3.0-dev-7`.
 
 **Gradle:**
 ```gradle
@@ -20,7 +20,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'space.kscience:kmath-nd4j:0.3.0-dev-6'
+    implementation 'space.kscience:kmath-nd4j:0.3.0-dev-7'
 }
 ```
 **Gradle Kotlin DSL:**
@@ -32,7 +32,7 @@ repositories {
 }
 
 dependencies {
-    implementation("space.kscience:kmath-nd4j:0.3.0-dev-6")
+    implementation("space.kscience:kmath-nd4j:0.3.0-dev-7")
 }
 ```
 

kmath-nd4j/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("jvm")
     id("ru.mipt.npm.gradle.common")
@@ -20,7 +18,7 @@ dependencies {
 
 readme {
     description = "ND4J NDStructure implementation and according NDAlgebra classes"
-    maturity = Maturity.EXPERIMENTAL
+    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
     propertyByTemplate("artifact", rootProject.file("docs/templates/ARTIFACT-TEMPLATE.md"))
 
     feature(

kmath-stat/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("multiplatform")
     id("ru.mipt.npm.gradle.common")
@@ -30,5 +28,5 @@ kotlin.sourceSets {
 }
 
 readme {
-    maturity = Maturity.EXPERIMENTAL
+    maturity = ru.mipt.npm.gradle.Maturity.EXPERIMENTAL
 }

kmath-viktor/build.gradle.kts

@@ -3,8 +3,6 @@
  * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
-import ru.mipt.npm.gradle.Maturity
-
 plugins {
     kotlin("jvm")
     id("ru.mipt.npm.gradle.common")
@@ -18,5 +16,5 @@ dependencies {
 }
 
 readme {
-    maturity = Maturity.DEVELOPMENT
+    maturity = ru.mipt.npm.gradle.Maturity.DEVELOPMENT
 }