test to fix determinant

2021-04-09 12:26:03 +01:00 · 2021-04-09 12:26:03 +01:00 · b51427d2ab
commit b51427d2ab
parent 1e8da7a87b
1 changed files with 13 additions and 0 deletions
--- a/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleLinearOpsAlgebra.kt
+++ b/kmath-tensors/src/commonTest/kotlin/space/kscience/kmath/tensors/core/TestDoubleLinearOpsAlgebra.kt
@ -34,6 +34,19 @@ class TestDoubleLinearOpsTensorAlgebra {

    }

+    @Test
+    fun testDet() = DoubleLinearOpsTensorAlgebra {
+        val m = fromArray(
+            intArrayOf(3, 3), doubleArrayOf(
+                2.1843, 1.4391, -0.4845,
+                1.4391, 1.7772, 0.4055,
+                -0.4845, 0.4055, 0.7519
+            )
+        )
+        println(m.det().value())
+        println(0.0197) //expected value
+    }
+
    @Test
    fun testInvLU() = DoubleLinearOpsTensorAlgebra {
        val tensor = fromArray(