From 8bfa07cc2759ad6a23af6f7aa5cd913e23fb455a Mon Sep 17 00:00:00 2001
From: margarita0303 <lashina.2000@gmail.com>
Date: Tue, 2 Aug 2022 20:39:31 +0300
Subject: [PATCH] added epsilon for calculating the accuracy of calculations
 Golub Kahan

---
 .../kscience/kmath/tensors/core/TestDoubleLinearOpsAlgebra.kt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git 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
index 87050c405..181b3f4fe 100644
--- 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
@@ -282,7 +282,7 @@ private fun DoubleTensorAlgebra.testSVDFor(tensor: DoubleTensor) {
     assertTrue(tensor.eq(tensorSVD))
 }
 
-private fun DoubleTensorAlgebra.testSVDGolubKahanFor(tensor: DoubleTensor) {
+private fun DoubleTensorAlgebra.testSVDGolubKahanFor(tensor: DoubleTensor, epsilon: Double = 1e-10) {
     val svd = tensor.svdGolubKahan()
 
     val tensorSVD = svd.first
@@ -291,7 +291,7 @@ private fun DoubleTensorAlgebra.testSVDGolubKahanFor(tensor: DoubleTensor) {
                 .dot(svd.third.transpose())
         )
 
-    assertTrue(tensor.eq(tensorSVD))
+    assertTrue(tensor.eq(tensorSVD, epsilon))
 }
 
 private fun DoubleTensorAlgebra.testSVDPowerMethodFor(tensor: DoubleTensor, epsilon: Double = 1e-10) {