CHANGELOG.md

@@ -11,6 +11,7 @@
 - Multiplatform integration
 - Integration for any Field element
 - Extended operations for ND4J fields
+- Jupyter Notebook integration module (kmath-jupyter)
 
 ### Changed
 - Exponential operations merged with hyperbolic functions

build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     id("ru.mipt.npm.gradle.project")
+    kotlin("jupyter.api") apply false
 }
 
 allprojects {

kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/rendering/MathMLSyntaxRenderer.kt

@@ -18,11 +18,14 @@ import space.kscience.kmath.misc.UnstableKMathAPI
 public object MathMLSyntaxRenderer : SyntaxRenderer {
     public override fun render(node: MathSyntax, output: Appendable) {
         output.append("<math xmlns=\"https://www.w3.org/1998/Math/MathML\"><mrow>")
-        render0(node, output)
+        renderPart(node, output)
         output.append("</mrow></math>")
     }
 
-    private fun render0(node: MathSyntax, output: Appendable): Unit = output.run {
+    /**
+     * Renders a part of syntax returning a correct MathML tag not the whole MathML instance.
+     */
+    public fun renderPart(node: MathSyntax, output: Appendable): Unit = output.run {
         fun tag(tagName: String, vararg attr: Pair<String, String>, block: () -> Unit = {}) {
             append('<')
             append(tagName)
@@ -47,7 +50,7 @@ public object MathMLSyntaxRenderer : SyntaxRenderer {
             append('>')
         }
 
-        fun render(syntax: MathSyntax) = render0(syntax, output)
+        fun render(syntax: MathSyntax) = renderPart(syntax, output)
 
         when (node) {
             is NumberSyntax -> tag("mn") { append(node.string) }

kmath-core/api/kmath-core.api

@@ -272,6 +272,8 @@ public final class space/kscience/kmath/expressions/MstExtendedField : space/ksc
 	public fun sin (Lspace/kscience/kmath/expressions/MST;)Lspace/kscience/kmath/expressions/MST$Unary;
 	public synthetic fun sinh (Ljava/lang/Object;)Ljava/lang/Object;
 	public fun sinh (Lspace/kscience/kmath/expressions/MST;)Lspace/kscience/kmath/expressions/MST$Unary;
+	public synthetic fun sqrt (Ljava/lang/Object;)Ljava/lang/Object;
+	public fun sqrt (Lspace/kscience/kmath/expressions/MST;)Lspace/kscience/kmath/expressions/MST;
 	public synthetic fun tan (Ljava/lang/Object;)Ljava/lang/Object;
 	public fun tan (Lspace/kscience/kmath/expressions/MST;)Lspace/kscience/kmath/expressions/MST$Unary;
 	public synthetic fun tanh (Ljava/lang/Object;)Ljava/lang/Object;

kmath-core/src/commonMain/kotlin/space/kscience/kmath/expressions/MstAlgebra.kt

@@ -135,6 +135,7 @@ public object MstExtendedField : ExtendedField<MST>, NumericAlgebra<MST> {
     public override fun acosh(arg: MST): MST.Unary = unaryOperationFunction(ExponentialOperations.ACOSH_OPERATION)(arg)
     public override fun atanh(arg: MST): MST.Unary = unaryOperationFunction(ExponentialOperations.ATANH_OPERATION)(arg)
     public override fun add(a: MST, b: MST): MST.Binary = MstField.add(a, b)
+    public override fun sqrt(arg: MST): MST = unaryOperationFunction(PowerOperations.SQRT_OPERATION)(arg)
 
     public override fun scale(a: MST, value: Double): MST =
         binaryOperation(GroupOperations.PLUS_OPERATION, a, number(value))

kmath-jupyter/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+    id("ru.mipt.npm.gradle.jvm")
+    kotlin("jupyter.api")
+}
+
+dependencies {
+    api(project(":kmath-ast"))
+    api(project(":kmath-complex"))
+    api(project(":kmath-for-real"))
+    implementation("org.jetbrains.kotlinx:kotlinx-html-jvm:0.7.3")
+}
+
+readme {
+    maturity = ru.mipt.npm.gradle.Maturity.PROTOTYPE
+}
+
+kotlin.sourceSets.all {
+    languageSettings.useExperimentalAnnotation("space.kscience.kmath.misc.UnstableKMathAPI")
+}

kmath-jupyter/src/main/kotlin/space/kscience/kmath/jupyter/KMathJupyter.kt

@@ -0,0 +1,120 @@
+package space.kscience.kmath.jupyter
+
+import kotlinx.html.Unsafe
+import kotlinx.html.div
+import kotlinx.html.stream.createHTML
+import kotlinx.html.unsafe
+import org.jetbrains.kotlinx.jupyter.api.DisplayResult
+import org.jetbrains.kotlinx.jupyter.api.HTML
+import org.jetbrains.kotlinx.jupyter.api.annotations.JupyterLibrary
+import org.jetbrains.kotlinx.jupyter.api.libraries.JupyterIntegration
+import space.kscience.kmath.expressions.MST
+import space.kscience.kmath.ast.rendering.FeaturedMathRendererWithPostProcess
+import space.kscience.kmath.ast.rendering.MathMLSyntaxRenderer
+import space.kscience.kmath.ast.rendering.renderWithStringBuilder
+import space.kscience.kmath.complex.Complex
+import space.kscience.kmath.nd.Structure2D
+import space.kscience.kmath.operations.GroupOperations
+import space.kscience.kmath.operations.RingOperations
+import space.kscience.kmath.structures.Buffer
+import space.kscience.kmath.structures.asSequence
+
+@JupyterLibrary
+internal class KMathJupyter : JupyterIntegration() {
+    private val mathRender = FeaturedMathRendererWithPostProcess.Default
+    private val syntaxRender = MathMLSyntaxRenderer
+
+    override fun Builder.onLoaded() {
+        import(
+            "space.kscience.kmath.ast.*",
+            "space.kscience.kmath.ast.rendering.*",
+            "space.kscience.kmath.operations.*",
+            "space.kscience.kmath.expressions.*",
+            "space.kscience.kmath.misc.*",
+            "space.kscience.kmath.real.*",
+        )
+
+        fun MST.toDisplayResult(): DisplayResult = HTML(createHTML().div {
+            unsafe {
+                +syntaxRender.renderWithStringBuilder(mathRender.render(this@toDisplayResult))
+            }
+        })
+
+        render<MST> { it.toDisplayResult() }
+        render<Number> { MST.Numeric(it).toDisplayResult() }
+
+        fun Unsafe.appendCellValue(it: Any?) {
+            when (it) {
+                is Number -> {
+                    val s = StringBuilder()
+                    syntaxRender.renderPart(mathRender.render(MST.Numeric(it)), s)
+                    +s.toString()
+                }
+                is MST -> {
+                    val s = StringBuilder()
+                    syntaxRender.renderPart(mathRender.render(it), s)
+                    +s.toString()
+                }
+                else -> {
+                    +"<ms>"
+                    +it.toString()
+                    +"</ms>"
+                }
+            }
+        }
+
+        render<Structure2D<*>> { structure ->
+            HTML(createHTML().div {
+                unsafe {
+                    +"<math xmlns=\"https://www.w3.org/1998/Math/MathML\">"
+                    +"<mrow>"
+                    +"<mfenced open=\"[\" close=\"]\" separators=\"\">"
+                    +"<mtable>"
+                    structure.rows.forEach { row ->
+                        +"<mtr>"
+                        row.asSequence().forEach {
+                            +"<mtd>"
+                            appendCellValue(it)
+                            +"</mtd>"
+                        }
+                        +"</mtr>"
+                    }
+                    +"</mtable>"
+                    +"</mfenced>"
+                    +"</mrow>"
+                    +"</math>"
+                }
+            })
+        }
+
+        render<Buffer<*>> { buffer ->
+            HTML(createHTML().div {
+                unsafe {
+                    +"<math xmlns=\"https://www.w3.org/1998/Math/MathML\">"
+                    +"<mrow>"
+                    +"<mfenced open=\"[\" close=\"]\" separators=\"\">"
+                    +"<mtable>"
+                    buffer.asSequence().forEach {
+                        +"<mtr>"
+                        +"<mtd>"
+                        appendCellValue(it)
+                        +"</mtd>"
+                        +"</mtr>"
+                    }
+                    +"</mtable>"
+                    +"</mfenced>"
+                    +"</mrow>"
+                    +"</math>"
+                }
+            })
+        }
+
+        render<Complex> {
+            MST.Binary(
+                operation = GroupOperations.PLUS_OPERATION,
+                left = MST.Numeric(it.re),
+                right = MST.Binary(RingOperations.TIMES_OPERATION, MST.Numeric(it.im), MST.Symbolic("i")),
+            ).toDisplayResult()
+        }
+    }
+}

settings.gradle.kts

@@ -17,6 +17,9 @@ pluginManagement {
         id("ru.mipt.npm.gradle.project") version toolsVersion
         id("ru.mipt.npm.gradle.mpp") version toolsVersion
         id("ru.mipt.npm.gradle.jvm") version toolsVersion
+        kotlin("jupyter.api") version "0.9.0.12"
+        kotlin("jvm") version kotlinVersion
+        kotlin("plugin.allopen") version kotlinVersion
     }
 }
 
@@ -39,6 +42,7 @@ include(
     ":kmath-ast",
     ":kmath-ejml",
     ":kmath-kotlingrad",
+    ":kmath-jupyter",
     ":examples",
     ":benchmarks"
 )