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Make vector spaces great again

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Alexander Nozik 2021-03-11 11:28:10 +03:00
parent fd51564628
commit 803f298d8b
13 changed files with 109 additions and 62 deletions
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1
CHANGELOG.md
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@ -8,6 +8,7 @@
### Changed ### Changed
- Exponential operations merged with hyperbolic functions - Exponential operations merged with hyperbolic functions
- Space is replaced by Group. Space is reserved for vector spaces. - Space is replaced by Group. Space is reserved for vector spaces.
- VectorSpace is now a vector space
### Deprecated ### Deprecated

6
kmath-ast/src/commonMain/kotlin/space/kscience/kmath/ast/MstExpression.kt
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@ -58,7 +58,7 @@ public inline fun <reified T : Any, A : Algebra<T>, E : Algebra<MST>> A.mst(
* *
* @author Alexander Nozik * @author Alexander Nozik
*/ */
public inline fun <reified T : Any, A : Group<T>> A.mstInSpace(block: MstGroup.() -> MST): MstExpression<T, A> { public inline fun <reified T : Any, A : Group<T>> A.mstInGroup(block: MstGroup.() -> MST): MstExpression<T, A> {
contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) } contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) }
return MstExpression(this, MstGroup.block()) return MstExpression(this, MstGroup.block())
} }
@ -98,9 +98,9 @@ public inline fun <reified T : Any, A : ExtendedField<T>> A.mstInExtendedField(b
* *
* @author Alexander Nozik * @author Alexander Nozik
*/ */
public inline fun <reified T : Any, A : Group<T>> FunctionalExpressionGroup<T, A>.mstInSpace(block: MstGroup.() -> MST): MstExpression<T, A> { public inline fun <reified T : Any, A : Group<T>> FunctionalExpressionGroup<T, A>.mstInGroup(block: MstGroup.() -> MST): MstExpression<T, A> {
contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) } contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) }
return algebra.mstInSpace(block) return algebra.mstInGroup(block)
} }
/** /**

4
kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeConsistencyWithInterpreter.kt
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@ -12,7 +12,7 @@ import kotlin.test.assertEquals
internal class TestESTreeConsistencyWithInterpreter { internal class TestESTreeConsistencyWithInterpreter {
@Test @Test
fun mstSpace() { fun mstSpace() {
val res1 = MstGroup.mstInSpace { val res1 = MstGroup.mstInGroup {
binaryOperationFunction("+")( binaryOperationFunction("+")(
unaryOperationFunction("+")( unaryOperationFunction("+")(
number(3.toByte()) - (number(2.toByte()) + (scale( number(3.toByte()) - (number(2.toByte()) + (scale(
@ -25,7 +25,7 @@ internal class TestESTreeConsistencyWithInterpreter {
) + bindSymbol("x") + zero ) + bindSymbol("x") + zero
}("x" to MST.Numeric(2)) }("x" to MST.Numeric(2))
val res2 = MstGroup.mstInSpace { val res2 = MstGroup.mstInGroup {
binaryOperationFunction("+")( binaryOperationFunction("+")(
unaryOperationFunction("+")( unaryOperationFunction("+")(
number(3.toByte()) - (number(2.toByte()) + (scale( number(3.toByte()) - (number(2.toByte()) + (scale(

6
kmath-ast/src/jsTest/kotlin/space/kscience/kmath/estree/TestESTreeOperationsSupport.kt
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@ -2,7 +2,7 @@ package space.kscience.kmath.estree
import space.kscience.kmath.ast.mstInExtendedField import space.kscience.kmath.ast.mstInExtendedField
import space.kscience.kmath.ast.mstInField import space.kscience.kmath.ast.mstInField
import space.kscience.kmath.ast.mstInSpace import space.kscience.kmath.ast.mstInGroup
import space.kscience.kmath.expressions.invoke import space.kscience.kmath.expressions.invoke
import space.kscience.kmath.operations.RealField import space.kscience.kmath.operations.RealField
import kotlin.random.Random import kotlin.random.Random
@ -12,14 +12,14 @@ import kotlin.test.assertEquals
internal class TestESTreeOperationsSupport { internal class TestESTreeOperationsSupport {
@Test @Test
fun testUnaryOperationInvocation() { fun testUnaryOperationInvocation() {
val expression = RealField.mstInSpace { -bindSymbol("x") }.compile() val expression = RealField.mstInGroup { -bindSymbol("x") }.compile()
val res = expression("x" to 2.0) val res = expression("x" to 2.0)
assertEquals(-2.0, res) assertEquals(-2.0, res)
} }
@Test @Test
fun testBinaryOperationInvocation() { fun testBinaryOperationInvocation() {
val expression = RealField.mstInSpace { -bindSymbol("x") + number(1.0) }.compile() val expression = RealField.mstInGroup { -bindSymbol("x") + number(1.0) }.compile()
val res = expression("x" to 2.0) val res = expression("x" to 2.0)
assertEquals(-1.0, res) assertEquals(-1.0, res)
} }

4
kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmConsistencyWithInterpreter.kt
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@ -12,7 +12,7 @@ import kotlin.test.assertEquals
internal class TestAsmConsistencyWithInterpreter { internal class TestAsmConsistencyWithInterpreter {
@Test @Test
fun mstSpace() { fun mstSpace() {
val res1 = MstGroup.mstInSpace { val res1 = MstGroup.mstInGroup {
binaryOperationFunction("+")( binaryOperationFunction("+")(
unaryOperationFunction("+")( unaryOperationFunction("+")(
number(3.toByte()) - (number(2.toByte()) + (scale( number(3.toByte()) - (number(2.toByte()) + (scale(
@ -25,7 +25,7 @@ internal class TestAsmConsistencyWithInterpreter {
) + bindSymbol("x") + zero ) + bindSymbol("x") + zero
}("x" to MST.Numeric(2)) }("x" to MST.Numeric(2))
val res2 = MstGroup.mstInSpace { val res2 = MstGroup.mstInGroup {
binaryOperationFunction("+")( binaryOperationFunction("+")(
unaryOperationFunction("+")( unaryOperationFunction("+")(
number(3.toByte()) - (number(2.toByte()) + (scale( number(3.toByte()) - (number(2.toByte()) + (scale(

6
kmath-ast/src/jvmTest/kotlin/space/kscience/kmath/asm/TestAsmOperationsSupport.kt
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@ -2,7 +2,7 @@ package space.kscience.kmath.asm
import space.kscience.kmath.ast.mstInExtendedField import space.kscience.kmath.ast.mstInExtendedField
import space.kscience.kmath.ast.mstInField import space.kscience.kmath.ast.mstInField
import space.kscience.kmath.ast.mstInSpace import space.kscience.kmath.ast.mstInGroup
import space.kscience.kmath.expressions.invoke import space.kscience.kmath.expressions.invoke
import space.kscience.kmath.operations.RealField import space.kscience.kmath.operations.RealField
import kotlin.random.Random import kotlin.random.Random
@ -12,14 +12,14 @@ import kotlin.test.assertEquals
internal class TestAsmOperationsSupport { internal class TestAsmOperationsSupport {
@Test @Test
fun testUnaryOperationInvocation() { fun testUnaryOperationInvocation() {
val expression = RealField.mstInSpace { -bindSymbol("x") }.compile() val expression = RealField.mstInGroup { -bindSymbol("x") }.compile()
val res = expression("x" to 2.0) val res = expression("x" to 2.0)
assertEquals(-2.0, res) assertEquals(-2.0, res)
} }
@Test @Test
fun testBinaryOperationInvocation() { fun testBinaryOperationInvocation() {
val expression = RealField.mstInSpace { -bindSymbol("x") + number(1.0) }.compile() val expression = RealField.mstInGroup { -bindSymbol("x") + number(1.0) }.compile()
val res = expression("x" to 2.0) val res = expression("x" to 2.0)
assertEquals(-1.0, res) assertEquals(-1.0, res)
} }

3
kmath-commons/src/main/kotlin/space/kscience/kmath/commons/linear/CMMatrix.kt
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@ -86,6 +86,9 @@ public object CMMatrixContext : MatrixContext<Double, CMMatrix> {
} }
} }
override fun scale(a: Matrix<Double>, value: Double): Matrix<Double> = a.toCM().times(value)
public override fun Matrix<Double>.dot(other: Matrix<Double>): CMMatrix = public override fun Matrix<Double>.dot(other: Matrix<Double>): CMMatrix =
CMMatrix(toCM().origin.multiply(other.toCM().origin)) CMMatrix(toCM().origin.multiply(other.toCM().origin))

48
kmath-core/api/kmath-core.api
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@ -460,6 +460,8 @@ public final class space/kscience/kmath/linear/BufferMatrixContext : space/kscie
public fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public synthetic fun bindSymbol (Ljava/lang/String;)Ljava/lang/Object; public synthetic fun bindSymbol (Ljava/lang/String;)Ljava/lang/Object;
public fun bindSymbol (Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D; public fun bindSymbol (Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D;
public synthetic fun div (Ljava/lang/Object;Ljava/lang/Number;)Ljava/lang/Object;
public fun div (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/linear/BufferMatrix; public fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/linear/BufferMatrix;
public synthetic fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public synthetic fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
@ -473,8 +475,14 @@ public final class space/kscience/kmath/linear/BufferMatrixContext : space/kscie
public fun point (ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer; public fun point (ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer;
public fun produce (IILkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/linear/BufferMatrix; public fun produce (IILkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/linear/BufferMatrix;
public synthetic fun produce (IILkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/nd/Structure2D; public synthetic fun produce (IILkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/nd/Structure2D;
public synthetic fun scale (Ljava/lang/Object;D)Ljava/lang/Object;
public fun scale (Lspace/kscience/kmath/nd/Structure2D;D)Lspace/kscience/kmath/nd/Structure2D;
public synthetic fun times (Ljava/lang/Number;Ljava/lang/Object;)Ljava/lang/Object;
public fun times (Ljava/lang/Number;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public synthetic fun times (Ljava/lang/Object;Ljava/lang/Number;)Ljava/lang/Object;
public fun times (Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/linear/BufferMatrix; public fun times (Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/linear/BufferMatrix;
public synthetic fun times (Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public synthetic fun times (Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public fun times (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public fun times (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/linear/BufferMatrix; public fun times (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/linear/BufferMatrix;
public synthetic fun times (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D; public synthetic fun times (Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D;
public synthetic fun unaryMinus (Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun unaryMinus (Ljava/lang/Object;)Ljava/lang/Object;
@ -490,8 +498,8 @@ public final class space/kscience/kmath/linear/BufferMatrixContext : space/kscie
public final class space/kscience/kmath/linear/BufferMatrixContext$Companion { public final class space/kscience/kmath/linear/BufferMatrixContext$Companion {
} }
public final class space/kscience/kmath/linear/BufferVectorGroup : space/kscience/kmath/linear/VectorSpace { public final class space/kscience/kmath/linear/BufferVectorSpace : space/kscience/kmath/linear/VectorSpace {
public fun <init> (ILspace/kscience/kmath/operations/Ring;Lkotlin/jvm/functions/Function2;)V public fun <init> (ILspace/kscience/kmath/operations/Group;Lkotlin/jvm/functions/Function2;)V
public synthetic fun add (Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun add (Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
public fun add (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public fun add (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public synthetic fun binaryOperation (Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun binaryOperation (Ljava/lang/String;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
@ -499,7 +507,9 @@ public final class space/kscience/kmath/linear/BufferVectorGroup : space/kscienc
public fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public synthetic fun bindSymbol (Ljava/lang/String;)Ljava/lang/Object; public synthetic fun bindSymbol (Ljava/lang/String;)Ljava/lang/Object;
public fun bindSymbol (Ljava/lang/String;)Lspace/kscience/kmath/structures/Buffer; public fun bindSymbol (Ljava/lang/String;)Lspace/kscience/kmath/structures/Buffer;
public fun getAlgebra ()Lspace/kscience/kmath/operations/Ring; public synthetic fun div (Ljava/lang/Object;Ljava/lang/Number;)Ljava/lang/Object;
public fun div (Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Number;)Lspace/kscience/kmath/structures/Buffer;
public fun getAlgebra ()Lspace/kscience/kmath/operations/Group;
public final fun getBufferFactory ()Lkotlin/jvm/functions/Function2; public final fun getBufferFactory ()Lkotlin/jvm/functions/Function2;
public fun getSize ()I public fun getSize ()I
public synthetic fun getZero ()Ljava/lang/Object; public synthetic fun getZero ()Ljava/lang/Object;
@ -509,7 +519,12 @@ public final class space/kscience/kmath/linear/BufferVectorGroup : space/kscienc
public synthetic fun plus (Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun plus (Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
public fun plus (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public fun plus (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public fun produce (Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/structures/Buffer; public fun produce (Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/structures/Buffer;
public fun scale (Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Object;)Lspace/kscience/kmath/structures/Buffer; public synthetic fun scale (Ljava/lang/Object;D)Ljava/lang/Object;
public fun scale (Lspace/kscience/kmath/structures/Buffer;D)Lspace/kscience/kmath/structures/Buffer;
public synthetic fun times (Ljava/lang/Number;Ljava/lang/Object;)Ljava/lang/Object;
public fun times (Ljava/lang/Number;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public synthetic fun times (Ljava/lang/Object;Ljava/lang/Number;)Ljava/lang/Object;
public fun times (Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Number;)Lspace/kscience/kmath/structures/Buffer;
public synthetic fun unaryMinus (Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun unaryMinus (Ljava/lang/Object;)Ljava/lang/Object;
public fun unaryMinus (Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public fun unaryMinus (Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public synthetic fun unaryOperation (Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object; public synthetic fun unaryOperation (Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object;
@ -549,12 +564,15 @@ public final class space/kscience/kmath/linear/GenericMatrixContext$DefaultImpls
public static fun binaryOperation (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun binaryOperation (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public static fun bindSymbol (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D; public static fun bindSymbol (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D;
public static fun div (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public static fun dot (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun dot (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun dot (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun dot (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun minus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun minus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun plus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun plus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun point (Lspace/kscience/kmath/linear/GenericMatrixContext;ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer; public static fun point (Lspace/kscience/kmath/linear/GenericMatrixContext;ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer;
public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/Number;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D; public static fun times (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D;
public static fun unaryMinus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun unaryMinus (Lspace/kscience/kmath/linear/GenericMatrixContext;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun unaryOperation (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun unaryOperation (Lspace/kscience/kmath/linear/GenericMatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
@ -625,7 +643,7 @@ public final class space/kscience/kmath/linear/MatrixBuilderKt {
public static final fun row (Lspace/kscience/kmath/nd/Structure2D$Companion;[Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D; public static final fun row (Lspace/kscience/kmath/nd/Structure2D$Companion;[Ljava/lang/Object;)Lspace/kscience/kmath/nd/Structure2D;
} }
public abstract interface class space/kscience/kmath/linear/MatrixContext : space/kscience/kmath/operations/GroupOperations { public abstract interface class space/kscience/kmath/linear/MatrixContext : space/kscience/kmath/operations/GroupOperations, space/kscience/kmath/operations/ScaleOperations {
public static final field Companion Lspace/kscience/kmath/linear/MatrixContext$Companion; public static final field Companion Lspace/kscience/kmath/linear/MatrixContext$Companion;
public abstract fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public abstract fun binaryOperationFunction (Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public abstract fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public abstract fun dot (Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
@ -645,10 +663,13 @@ public final class space/kscience/kmath/linear/MatrixContext$DefaultImpls {
public static fun binaryOperation (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun binaryOperation (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public static fun bindSymbol (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D; public static fun bindSymbol (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lspace/kscience/kmath/nd/Structure2D;
public static fun div (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public static fun minus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun minus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun plus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun plus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun point (Lspace/kscience/kmath/linear/MatrixContext;ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer; public static fun point (Lspace/kscience/kmath/linear/MatrixContext;ILkotlin/jvm/functions/Function1;)Lspace/kscience/kmath/structures/Buffer;
public static fun times (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/Number;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun times (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun times (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/Object;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun times (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;Ljava/lang/Number;)Lspace/kscience/kmath/nd/Structure2D;
public static fun unaryOperation (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun unaryOperation (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
public static fun unaryOperationFunction (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function1; public static fun unaryOperationFunction (Lspace/kscience/kmath/linear/MatrixContext;Ljava/lang/String;)Lkotlin/jvm/functions/Function1;
public static fun unaryPlus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D; public static fun unaryPlus (Lspace/kscience/kmath/linear/MatrixContext;Lspace/kscience/kmath/nd/Structure2D;)Lspace/kscience/kmath/nd/Structure2D;
@ -763,21 +784,21 @@ public final class space/kscience/kmath/linear/UnitFeature : space/kscience/kmat
public static final field INSTANCE Lspace/kscience/kmath/linear/UnitFeature; public static final field INSTANCE Lspace/kscience/kmath/linear/UnitFeature;
} }
public abstract interface class space/kscience/kmath/linear/VectorSpace : space/kscience/kmath/operations/Group { public abstract interface class space/kscience/kmath/linear/VectorSpace : space/kscience/kmath/operations/Group, space/kscience/kmath/operations/ScaleOperations {
public static final field Companion Lspace/kscience/kmath/linear/VectorSpace$Companion; public static final field Companion Lspace/kscience/kmath/linear/VectorSpace$Companion;
public abstract fun add (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public abstract fun add (Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public abstract fun getAlgebra ()Lspace/kscience/kmath/operations/Ring; public abstract fun getAlgebra ()Lspace/kscience/kmath/operations/Group;
public abstract fun getSize ()I public abstract fun getSize ()I
public abstract fun getZero ()Lspace/kscience/kmath/structures/Buffer; public abstract fun getZero ()Lspace/kscience/kmath/structures/Buffer;
public abstract fun produce (Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/structures/Buffer; public abstract fun produce (Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/structures/Buffer;
public abstract fun scale (Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Object;)Lspace/kscience/kmath/structures/Buffer; public abstract fun scale (Lspace/kscience/kmath/structures/Buffer;D)Lspace/kscience/kmath/structures/Buffer;
public abstract fun unaryMinus (Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public abstract fun unaryMinus (Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
} }
public final class space/kscience/kmath/linear/VectorSpace$Companion { public final class space/kscience/kmath/linear/VectorSpace$Companion {
public final fun buffered (ILspace/kscience/kmath/operations/Ring;Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/linear/BufferVectorGroup; public final fun buffered (ILspace/kscience/kmath/operations/Group;Lkotlin/jvm/functions/Function2;)Lspace/kscience/kmath/linear/BufferVectorSpace;
public static synthetic fun buffered$default (Lspace/kscience/kmath/linear/VectorSpace$Companion;ILspace/kscience/kmath/operations/Ring;Lkotlin/jvm/functions/Function2;ILjava/lang/Object;)Lspace/kscience/kmath/linear/BufferVectorGroup; public static synthetic fun buffered$default (Lspace/kscience/kmath/linear/VectorSpace$Companion;ILspace/kscience/kmath/operations/Group;Lkotlin/jvm/functions/Function2;ILjava/lang/Object;)Lspace/kscience/kmath/linear/BufferVectorSpace;
public final fun real (I)Lspace/kscience/kmath/linear/BufferVectorGroup; public final fun real (I)Lspace/kscience/kmath/linear/BufferVectorSpace;
} }
public final class space/kscience/kmath/linear/VectorSpace$DefaultImpls { public final class space/kscience/kmath/linear/VectorSpace$DefaultImpls {
@ -785,10 +806,13 @@ public final class space/kscience/kmath/linear/VectorSpace$DefaultImpls {
public static fun binaryOperation (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun binaryOperation (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lkotlin/jvm/functions/Function2; public static fun binaryOperationFunction (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lkotlin/jvm/functions/Function2;
public static fun bindSymbol (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lspace/kscience/kmath/structures/Buffer; public static fun bindSymbol (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lspace/kscience/kmath/structures/Buffer;
public static fun div (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Number;)Lspace/kscience/kmath/structures/Buffer;
public static fun getZero (Lspace/kscience/kmath/linear/VectorSpace;)Lspace/kscience/kmath/structures/Buffer; public static fun getZero (Lspace/kscience/kmath/linear/VectorSpace;)Lspace/kscience/kmath/structures/Buffer;
public static fun minus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun minus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun plus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun plus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun scale (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Object;)Lspace/kscience/kmath/structures/Buffer; public static fun scale (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;D)Lspace/kscience/kmath/structures/Buffer;
public static fun times (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/Number;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun times (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;Ljava/lang/Number;)Lspace/kscience/kmath/structures/Buffer;
public static fun unaryMinus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun unaryMinus (Lspace/kscience/kmath/linear/VectorSpace;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun unaryOperation (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer; public static fun unaryOperation (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;Lspace/kscience/kmath/structures/Buffer;)Lspace/kscience/kmath/structures/Buffer;
public static fun unaryOperationFunction (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lkotlin/jvm/functions/Function1; public static fun unaryOperationFunction (Lspace/kscience/kmath/linear/VectorSpace;Ljava/lang/String;)Lkotlin/jvm/functions/Function1;

14
kmath-core/src/commonMain/kotlin/space/kscience/kmath/linear/BufferMatrix.kt
View File

@ -3,6 +3,7 @@ package space.kscience.kmath.linear
import space.kscience.kmath.nd.NDStructure import space.kscience.kmath.nd.NDStructure
import space.kscience.kmath.nd.Structure2D import space.kscience.kmath.nd.Structure2D
import space.kscience.kmath.operations.Ring import space.kscience.kmath.operations.Ring
import space.kscience.kmath.operations.ScaleOperations
import space.kscience.kmath.operations.invoke import space.kscience.kmath.operations.invoke
import space.kscience.kmath.structures.Buffer import space.kscience.kmath.structures.Buffer
import space.kscience.kmath.structures.BufferFactory import space.kscience.kmath.structures.BufferFactory
@ -18,15 +19,22 @@ public typealias Matrix<T> = Structure2D<T>
/** /**
* Basic implementation of Matrix space based on [NDStructure] * Basic implementation of Matrix space based on [NDStructure]
*/ */
public class BufferMatrixContext<T : Any, R : Ring<T>>( public class BufferMatrixContext<T : Any, A>(
public override val elementContext: R, public override val elementContext: A,
private val bufferFactory: BufferFactory<T>, private val bufferFactory: BufferFactory<T>,
) : GenericMatrixContext<T, R, BufferMatrix<T>> { ) : GenericMatrixContext<T, A, BufferMatrix<T>> where A : Ring<T>, A : ScaleOperations<T> {
public override fun produce(rows: Int, columns: Int, initializer: (i: Int, j: Int) -> T): BufferMatrix<T> { public override fun produce(rows: Int, columns: Int, initializer: (i: Int, j: Int) -> T): BufferMatrix<T> {
val buffer = bufferFactory(rows * columns) { offset -> initializer(offset / columns, offset % columns) } val buffer = bufferFactory(rows * columns) { offset -> initializer(offset / columns, offset % columns) }
return BufferMatrix(rows, columns, buffer) return BufferMatrix(rows, columns, buffer)
} }
override fun scale(a: Matrix<T>, value: Double): Matrix<T> = elementContext {
produce(a.rowNum, a.colNum) { i, j ->
a[i, j] * value
}
}
public override fun point(size: Int, initializer: (Int) -> T): Point<T> = bufferFactory(size, initializer) public override fun point(size: Int, initializer: (Int) -> T): Point<T> = bufferFactory(size, initializer)
private fun Matrix<T>.toBufferMatrix(): BufferMatrix<T> = if (this is BufferMatrix) this else { private fun Matrix<T>.toBufferMatrix(): BufferMatrix<T> = if (this is BufferMatrix) this else {

18
kmath-core/src/commonMain/kotlin/space/kscience/kmath/linear/MatrixContext.kt
View File

@ -13,7 +13,7 @@ import kotlin.reflect.KClass
* @param T the type of items in the matrices. * @param T the type of items in the matrices.
* @param M the type of operated matrices. * @param M the type of operated matrices.
*/ */
public interface MatrixContext<T : Any, out M : Matrix<T>> : GroupOperations<Matrix<T>> { public interface MatrixContext<T : Any, out M : Matrix<T>> : GroupOperations<Matrix<T>>, ScaleOperations<Matrix<T>> {
/** /**
* Produces a matrix with this context and given dimensions. * Produces a matrix with this context and given dimensions.
*/ */
@ -28,7 +28,7 @@ public interface MatrixContext<T : Any, out M : Matrix<T>> : GroupOperations<Mat
public override fun binaryOperationFunction(operation: String): (left: Matrix<T>, right: Matrix<T>) -> M = public override fun binaryOperationFunction(operation: String): (left: Matrix<T>, right: Matrix<T>) -> M =
when (operation) { when (operation) {
"dot" -> { left, right -> left dot right } "dot" -> { left, right -> left dot right }
else -> super.binaryOperationFunction(operation) as (Matrix<T>, Matrix<T>) -> M else -> super<GroupOperations>.binaryOperationFunction(operation) as (Matrix<T>, Matrix<T>) -> M
} }
/** /**
@ -84,15 +84,15 @@ public interface MatrixContext<T : Any, out M : Matrix<T>> : GroupOperations<Mat
/** /**
* A structured matrix with custom buffer * A structured matrix with custom buffer
*/ */
public fun <T : Any, R : Ring<T>> buffered( public fun <T : Any, A> buffered(
ring: R, ring: A,
bufferFactory: BufferFactory<T> = Buffer.Companion::boxing, bufferFactory: BufferFactory<T> = Buffer.Companion::boxing,
): GenericMatrixContext<T, R, BufferMatrix<T>> = BufferMatrixContext(ring, bufferFactory) ): GenericMatrixContext<T, A, BufferMatrix<T>> where A : Ring<T>, A: ScaleOperations<T> = BufferMatrixContext(ring, bufferFactory)
/** /**
* Automatic buffered matrix, unboxed if it is possible * Automatic buffered matrix, unboxed if it is possible
*/ */
public inline fun <reified T : Any, R : Ring<T>> auto(ring: R): GenericMatrixContext<T, R, BufferMatrix<T>> = public inline fun <reified T : Any, A> auto(ring: A): GenericMatrixContext<T, A, BufferMatrix<T>> where A : Ring<T>, A: ScaleOperations<T> =
buffered(ring, Buffer.Companion::auto) buffered(ring, Buffer.Companion::auto)
} }
} }
@ -116,14 +116,14 @@ public inline fun <T : Any, reified F : Any> MatrixContext<T, *>.getFeature(m: M
* Partial implementation of [MatrixContext] for matrices of [Ring]. * Partial implementation of [MatrixContext] for matrices of [Ring].
* *
* @param T the type of items in the matrices. * @param T the type of items in the matrices.
* @param R the type of ring of matrix elements. * @param A the type of ring of matrix elements.
* @param M the type of operated matrices. * @param M the type of operated matrices.
*/ */
public interface GenericMatrixContext<T : Any, R : Ring<T>, out M : Matrix<T>> : MatrixContext<T, M> { public interface GenericMatrixContext<T : Any, A, out M : Matrix<T>> : MatrixContext<T, M> where A : Ring<T>, A : ScaleOperations<T>{
/** /**
* The ring over matrix elements. * The ring over matrix elements.
*/ */
public val elementContext: R public val elementContext: A
public override infix fun Matrix<T>.dot(other: Matrix<T>): M { public override infix fun Matrix<T>.dot(other: Matrix<T>): M {
//TODO add typed error //TODO add typed error

23
kmath-core/src/commonMain/kotlin/space/kscience/kmath/linear/MatrixWrapper.kt
View File

@ -4,6 +4,7 @@ import space.kscience.kmath.misc.UnstableKMathAPI
import space.kscience.kmath.nd.Structure2D import space.kscience.kmath.nd.Structure2D
import space.kscience.kmath.nd.getFeature import space.kscience.kmath.nd.getFeature
import space.kscience.kmath.operations.Ring import space.kscience.kmath.operations.Ring
import space.kscience.kmath.operations.ScaleOperations
import space.kscience.kmath.structures.asBuffer import space.kscience.kmath.structures.asBuffer
import kotlin.math.sqrt import kotlin.math.sqrt
import kotlin.reflect.KClass import kotlin.reflect.KClass
@ -73,17 +74,23 @@ public fun <T : Any> Structure2D.Companion.square(vararg elements: T): Matrix<T>
/** /**
* Diagonal matrix of ones. The matrix is virtual no actual matrix is created * Diagonal matrix of ones. The matrix is virtual no actual matrix is created
*/ */
public fun <T : Any, R : Ring<T>> GenericMatrixContext<T, R, *>.one(rows: Int, columns: Int): Matrix<T> = public fun <T : Any, A> GenericMatrixContext<T, A, *>.one(
VirtualMatrix(rows, columns) { i, j -> rows: Int,
columns: Int,
): Matrix<T> where A : Ring<T>, A : ScaleOperations<T> = VirtualMatrix(rows, columns) { i, j ->
if (i == j) elementContext.one else elementContext.zero if (i == j) elementContext.one else elementContext.zero
} + UnitFeature } + UnitFeature
/** /**
* A virtual matrix of zeroes * A virtual matrix of zeroes
*/ */
public fun <T : Any, R : Ring<T>> GenericMatrixContext<T, R, *>.zero(rows: Int, columns: Int): Matrix<T> = public fun <T : Any, A> GenericMatrixContext<T, A, *>.zero(
VirtualMatrix(rows, columns) { _, _ -> elementContext.zero } + ZeroFeature rows: Int,
columns: Int,
): Matrix<T> where A : Ring<T>, A : ScaleOperations<T> = VirtualMatrix(rows, columns) { _, _ ->
elementContext.zero
} + ZeroFeature
public class TransposedFeature<T : Any>(public val original: Matrix<T>) : MatrixFeature public class TransposedFeature<T : Any>(public val original: Matrix<T>) : MatrixFeature
@ -91,9 +98,7 @@ public class TransposedFeature<T : Any>(public val original: Matrix<T>) : Matrix
* Create a virtual transposed matrix without copying anything. `A.transpose().transpose() === A` * Create a virtual transposed matrix without copying anything. `A.transpose().transpose() === A`
*/ */
@OptIn(UnstableKMathAPI::class) @OptIn(UnstableKMathAPI::class)
public fun <T : Any> Matrix<T>.transpose(): Matrix<T> { public fun <T : Any> Matrix<T>.transpose(): Matrix<T> = getFeature<TransposedFeature<T>>()?.original ?: VirtualMatrix(
return getFeature<TransposedFeature<T>>()?.original ?: VirtualMatrix(
colNum, colNum,
rowNum, rowNum,
) { i, j -> get(j, i) } + TransposedFeature(this) ) { i, j -> get(j, i) } + TransposedFeature(this)
}

27
kmath-core/src/commonMain/kotlin/space/kscience/kmath/linear/VectorSpace.kt
View File

@ -2,7 +2,7 @@ package space.kscience.kmath.linear
import space.kscience.kmath.operations.Group import space.kscience.kmath.operations.Group
import space.kscience.kmath.operations.RealField import space.kscience.kmath.operations.RealField
import space.kscience.kmath.operations.Ring import space.kscience.kmath.operations.ScaleOperations
import space.kscience.kmath.operations.invoke import space.kscience.kmath.operations.invoke
import space.kscience.kmath.structures.Buffer import space.kscience.kmath.structures.Buffer
import space.kscience.kmath.structures.BufferFactory import space.kscience.kmath.structures.BufferFactory
@ -11,7 +11,8 @@ import space.kscience.kmath.structures.BufferFactory
* A linear space for vectors. * A linear space for vectors.
* Could be used on any point-like structure * Could be used on any point-like structure
*/ */
public interface VectorSpace<T : Any, A : Ring<T>> : Group<Point<T>> { public interface VectorSpace<T : Any, A> : Group<Point<T>>, ScaleOperations<Point<T>>
where A : Group<T>, A : ScaleOperations<T> {
public val size: Int public val size: Int
public val algebra: A public val algebra: A
override val zero: Point<T> get() = produce { algebra.zero } override val zero: Point<T> get() = produce { algebra.zero }
@ -20,20 +21,20 @@ public interface VectorSpace<T : Any, A : Ring<T>> : Group<Point<T>> {
override fun add(a: Point<T>, b: Point<T>): Point<T> = produce { algebra { a[it] + b[it] } } override fun add(a: Point<T>, b: Point<T>): Point<T> = produce { algebra { a[it] + b[it] } }
public fun scale(a: Point<T>, scale: T): Point<T> = produce { algebra { a[it] * scale } } override fun scale(a: Point<T>, value: Double): Point<T> = produce { algebra.scale(a[it], value) }
override fun Point<T>.unaryMinus(): Point<T> = produce { -get(it) } override fun Point<T>.unaryMinus(): Point<T> = produce { -get(it) }
//TODO add basis //TODO add basis
public companion object { public companion object {
private val realSpaceCache: MutableMap<Int, BufferVectorGroup<Double, RealField>> = hashMapOf() private val realSpaceCache: MutableMap<Int, BufferVectorSpace<Double, RealField>> = hashMapOf()
/** /**
* Non-boxing double vector space * Non-boxing double vector space
*/ */
public fun real(size: Int): BufferVectorGroup<Double, RealField> = realSpaceCache.getOrPut(size) { public fun real(size: Int): BufferVectorSpace<Double, RealField> = realSpaceCache.getOrPut(size) {
BufferVectorGroup( BufferVectorSpace(
size, size,
RealField, RealField,
Buffer.Companion::auto Buffer.Companion::auto
@ -43,25 +44,29 @@ public interface VectorSpace<T : Any, A : Ring<T>> : Group<Point<T>> {
/** /**
* A structured vector space with custom buffer * A structured vector space with custom buffer
*/ */
public fun <T : Any, A : Ring<T>> buffered( public fun <T : Any, A> buffered(
size: Int, size: Int,
space: A, space: A,
bufferFactory: BufferFactory<T> = Buffer.Companion::boxing, bufferFactory: BufferFactory<T> = Buffer.Companion::boxing,
): BufferVectorGroup<T, A> = BufferVectorGroup(size, space, bufferFactory) ): BufferVectorSpace<T, A> where A : Group<T>, A : ScaleOperations<T> =
BufferVectorSpace(size, space, bufferFactory)
/** /**
* Automatic buffered vector, unboxed if it is possible * Automatic buffered vector, unboxed if it is possible
*/ */
public inline fun <reified T : Any, A : Ring<T>> auto(size: Int, space: A): VectorSpace<T, A> = public inline fun <reified T : Any, A> auto(
size: Int,
space: A,
): VectorSpace<T, A> where A : Group<T>, A : ScaleOperations<T> =
buffered(size, space, Buffer.Companion::auto) buffered(size, space, Buffer.Companion::auto)
} }
} }
public class BufferVectorGroup<T : Any, A : Ring<T>>( public class BufferVectorSpace<T : Any, A>(
override val size: Int, override val size: Int,
override val algebra: A, override val algebra: A,
public val bufferFactory: BufferFactory<T>, public val bufferFactory: BufferFactory<T>,
) : VectorSpace<T, A> { ) : VectorSpace<T, A> where A : Group<T>, A : ScaleOperations<T> {
override fun produce(initializer: A.(Int) -> T): Buffer<T> = bufferFactory(size) { algebra.initializer(it) } override fun produce(initializer: A.(Int) -> T): Buffer<T> = bufferFactory(size) { algebra.initializer(it) }
} }

3
kmath-geometry/src/commonMain/kotlin/space/kscience/kmath/geometry/GeometrySpace.kt
View File

@ -1,10 +1,11 @@
package space.kscience.kmath.geometry package space.kscience.kmath.geometry
import space.kscience.kmath.operations.Group import space.kscience.kmath.operations.Group
import space.kscience.kmath.operations.ScaleOperations
public interface Vector public interface Vector
public interface GeometrySpace<V : Vector> : Group<V> { public interface GeometrySpace<V : Vector> : Group<V>, ScaleOperations<V> {
/** /**
* L2 distance * L2 distance
*/ */