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Matrices from tensors test

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This commit is contained in:
Roland Grinis 2021-03-15 22:45:55 +00:00
parent 791f55ee8a
commit f4454a6cf6
1 changed files with 4 additions and 2 deletions
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6
kmath-core/src/commonTest/kotlin/space/kscience/kmath/tensors/TestDoubleTensor.kt
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@ -1,6 +1,7 @@
package space.kscience.kmath.tensors package space.kscience.kmath.tensors
import space.kscience.kmath.nd.as2D
import space.kscience.kmath.structures.toDoubleArray import space.kscience.kmath.structures.toDoubleArray
import kotlin.test.Test import kotlin.test.Test
import kotlin.test.assertEquals import kotlin.test.assertEquals
@ -24,7 +25,8 @@ class TestDoubleTensor {
@Test @Test
fun getTest() = DoubleTensorAlgebra { fun getTest() = DoubleTensorAlgebra {
val tensor = DoubleTensor(intArrayOf(2,2), doubleArrayOf(3.5,5.8,58.4,2.4)) val tensor = DoubleTensor(intArrayOf(1,2,2), doubleArrayOf(3.5,5.8,58.4,2.4))
assertTrue(tensor[0].elements().map{ it.second }.toList().toDoubleArray() contentEquals doubleArrayOf(3.5,5.8)) val matrix = tensor[0].as2D()
assertEquals(matrix[0,1], 5.8)
} }
} }