Moved back value to main algebra context

kmath-core/api/kmath-core.api

@@ -2654,10 +2654,6 @@ public final class space/kscience/kmath/tensors/LinearOpsTensorAlgebra$DefaultIm
 	public static synthetic fun symEig$default (Lspace/kscience/kmath/tensors/LinearOpsTensorAlgebra;Lspace/kscience/kmath/nd/MutableStructureND;ZILjava/lang/Object;)Lkotlin/Pair;
 }
 
-public abstract interface class space/kscience/kmath/tensors/ReduceOpsTensorAlgebra : space/kscience/kmath/tensors/TensorAlgebra {
-	public abstract fun value (Lspace/kscience/kmath/nd/MutableStructureND;)Ljava/lang/Object;
-}
-
 public abstract interface class space/kscience/kmath/tensors/TensorAlgebra {
 	public abstract fun copy (Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;
 	public abstract fun diagonalEmbedding (Lspace/kscience/kmath/nd/MutableStructureND;III)Lspace/kscience/kmath/nd/MutableStructureND;
@@ -2686,6 +2682,7 @@ public abstract interface class space/kscience/kmath/tensors/TensorAlgebra {
 	public abstract fun timesAssign (Lspace/kscience/kmath/nd/MutableStructureND;Lspace/kscience/kmath/nd/MutableStructureND;)V
 	public abstract fun transpose (Lspace/kscience/kmath/nd/MutableStructureND;II)Lspace/kscience/kmath/nd/MutableStructureND;
 	public abstract fun unaryMinus (Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;
+	public abstract fun value (Lspace/kscience/kmath/nd/MutableStructureND;)Ljava/lang/Object;
 	public abstract fun view (Lspace/kscience/kmath/nd/MutableStructureND;[I)Lspace/kscience/kmath/nd/MutableStructureND;
 	public abstract fun viewAs (Lspace/kscience/kmath/nd/MutableStructureND;Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;
 	public abstract fun zeroesLike (Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;
@@ -2809,16 +2806,6 @@ public final class space/kscience/kmath/tensors/core/DoubleLinearOpsTensorAlgebr
 	public static final fun DoubleLinearOpsTensorAlgebra (Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
 }
 
-public final class space/kscience/kmath/tensors/core/DoubleReduceOpsTensorAlgebra : space/kscience/kmath/tensors/core/DoubleTensorAlgebra, space/kscience/kmath/tensors/ReduceOpsTensorAlgebra {
-	public fun <init> ()V
-	public synthetic fun value (Lspace/kscience/kmath/nd/MutableStructureND;)Ljava/lang/Object;
-	public fun value (Lspace/kscience/kmath/tensors/core/DoubleTensor;)Ljava/lang/Double;
-}
-
-public final class space/kscience/kmath/tensors/core/DoubleReduceOpsTensorAlgebraKt {
-	public static final fun DoubleReduceOpsTensorAlgebra (Lkotlin/jvm/functions/Function1;)Ljava/lang/Object;
-}
-
 public final class space/kscience/kmath/tensors/core/DoubleTensor : space/kscience/kmath/tensors/core/BufferedTensor {
 }
 
@@ -2892,6 +2879,8 @@ public class space/kscience/kmath/tensors/core/DoubleTensorAlgebra : space/kscie
 	public fun transpose (Lspace/kscience/kmath/tensors/core/DoubleTensor;II)Lspace/kscience/kmath/tensors/core/DoubleTensor;
 	public synthetic fun unaryMinus (Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;
 	public fun unaryMinus (Lspace/kscience/kmath/tensors/core/DoubleTensor;)Lspace/kscience/kmath/tensors/core/DoubleTensor;
+	public synthetic fun value (Lspace/kscience/kmath/nd/MutableStructureND;)Ljava/lang/Object;
+	public fun value (Lspace/kscience/kmath/tensors/core/DoubleTensor;)Ljava/lang/Double;
 	public synthetic fun view (Lspace/kscience/kmath/nd/MutableStructureND;[I)Lspace/kscience/kmath/nd/MutableStructureND;
 	public fun view (Lspace/kscience/kmath/tensors/core/DoubleTensor;[I)Lspace/kscience/kmath/tensors/core/DoubleTensor;
 	public synthetic fun viewAs (Lspace/kscience/kmath/nd/MutableStructureND;Lspace/kscience/kmath/nd/MutableStructureND;)Lspace/kscience/kmath/nd/MutableStructureND;

kmath-core/src/commonMain/kotlin/space/kscience/kmath/tensors/ReduceOpsTensorAlgebra.kt

@@ -1,7 +0,0 @@
-package space.kscience.kmath.tensors
-
-public interface ReduceOpsTensorAlgebra<T, TensorType : TensorStructure<T>> :
-    TensorAlgebra<T, TensorType> {
-    public fun TensorType.value(): T
-
-}

kmath-core/src/commonMain/kotlin/space/kscience/kmath/tensors/TensorAlgebra.kt

@@ -5,6 +5,8 @@ import space.kscience.kmath.tensors.core.DoubleTensor
 // https://proofwiki.org/wiki/Definition:Algebra_over_Ring
 public interface TensorAlgebra<T, TensorType : TensorStructure<T>> {
 
+    public fun TensorType.value(): T
+
     //https://pytorch.org/docs/stable/generated/torch.full.html
     public fun full(value: T, shape: IntArray): TensorType
 

kmath-core/src/commonMain/kotlin/space/kscience/kmath/tensors/core/DoubleReduceOpsTensorAlgebra.kt

@@ -1,18 +0,0 @@
-package space.kscience.kmath.tensors.core
-
-import space.kscience.kmath.tensors.ReduceOpsTensorAlgebra
-
-public class DoubleReduceOpsTensorAlgebra:
-    DoubleTensorAlgebra(),
-    ReduceOpsTensorAlgebra<Double, DoubleTensor> {
-
-    override fun DoubleTensor.value(): Double {
-        check(this.shape contentEquals intArrayOf(1)) {
-            "Inconsistent value for tensor of shape ${shape.toList()}"
-        }
-        return this.buffer.array()[this.bufferStart]
-    }
-}
-
-public inline fun <R> DoubleReduceOpsTensorAlgebra(block: DoubleReduceOpsTensorAlgebra.() -> R): R =
-    DoubleReduceOpsTensorAlgebra().block()

kmath-core/src/commonMain/kotlin/space/kscience/kmath/tensors/core/DoubleTensorAlgebra.kt

@@ -7,6 +7,13 @@ import kotlin.math.abs
 
 public open class DoubleTensorAlgebra : TensorPartialDivisionAlgebra<Double, DoubleTensor> {
 
+    override fun DoubleTensor.value(): Double {
+        check(this.shape contentEquals intArrayOf(1)) {
+            "Inconsistent value for tensor of shape ${shape.toList()}"
+        }
+        return this.buffer.array()[this.bufferStart]
+    }
+
     public fun fromArray(shape: IntArray, buffer: DoubleArray): DoubleTensor {
         checkEmptyShape(shape)
         checkEmptyDoubleBuffer(buffer)

kmath-core/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleLinearOpsAlgebra.kt

@@ -72,11 +72,8 @@ class TestDoubleLinearOpsTensorAlgebra {
 
     @Test
     fun testScalarProduct() = DoubleLinearOpsTensorAlgebra {
-        val a = fromArray(intArrayOf(3), doubleArrayOf(1.8,2.5, 6.8))
+        val a = fromArray(intArrayOf(3), doubleArrayOf(1.8, 2.5, 6.8))
-        val b = fromArray(intArrayOf(3), doubleArrayOf(5.5,2.6, 6.4))
+        val b = fromArray(intArrayOf(3), doubleArrayOf(5.5, 2.6, 6.4))
-        DoubleReduceOpsTensorAlgebra {
         assertEquals(a.dot(b).value(), 59.92)
     }
-
-    }
 }

kmath-core/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleTensor.kt

@@ -10,7 +10,7 @@ import kotlin.test.assertTrue
 class TestDoubleTensor {
 
     @Test
-    fun valueTest() = DoubleReduceOpsTensorAlgebra {
+    fun valueTest() = DoubleTensorAlgebra {
         val value = 12.5
         val tensor = fromArray(intArrayOf(1), doubleArrayOf(value))
         assertEquals(tensor.value(), value)
@@ -37,5 +37,13 @@ class TestDoubleTensor {
 
         vector[0] = 109.56
         assertEquals(tensor[intArrayOf(0,1,0)], 109.56)
+
+        tensor.matrixSequence().forEach {
+            val a = it.asTensor()
+            val secondRow = a[1].as1D()
+            val secondColumn = a.transpose(0,1)[1].as1D()
+            assertEquals(secondColumn[0], 77.89)
+            assertEquals(secondRow[1], secondColumn[1])
+        }
     }
 }