Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / lapack / testlapack / dtrtri.go

diff --git a/vendor/gonum.org/v1/gonum/lapack/testlapack/dtrtri.go b/vendor/gonum.org/v1/gonum/lapack/testlapack/dtrtri.go
deleted file mode 100644 (file)
index 71bfc36..0000000
--- a/vendor/gonum.org/v1/gonum/lapack/testlapack/dtrtri.go
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright ©2015 The Gonum Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package testlapack
-
-import (
-       "math"
-       "testing"
-
-       "golang.org/x/exp/rand"
-
-       "gonum.org/v1/gonum/blas"
-       "gonum.org/v1/gonum/blas/blas64"
-)
-
-type Dtrtrier interface {
-       Dtrconer
-       Dtrtri(uplo blas.Uplo, diag blas.Diag, n int, a []float64, lda int) bool
-}
-
-func DtrtriTest(t *testing.T, impl Dtrtrier) {
-       const tol = 1e-10
-       rnd := rand.New(rand.NewSource(1))
-       bi := blas64.Implementation()
-       for _, uplo := range []blas.Uplo{blas.Upper, blas.Lower} {
-               for _, diag := range []blas.Diag{blas.NonUnit, blas.Unit} {
-                       for _, test := range []struct {
-                               n, lda int
-                       }{
-                               {3, 0},
-                               {70, 0},
-                               {200, 0},
-                               {3, 5},
-                               {70, 92},
-                               {200, 205},
-                       } {
-                               n := test.n
-                               lda := test.lda
-                               if lda == 0 {
-                                       lda = n
-                               }
-                               a := make([]float64, n*lda)
-                               for i := range a {
-                                       a[i] = rnd.Float64()
-                               }
-                               for i := 0; i < n; i++ {
-                                       // This keeps the matrices well conditioned.
-                                       a[i*lda+i] += float64(n)
-                               }
-                               aCopy := make([]float64, len(a))
-                               copy(aCopy, a)
-                               impl.Dtrtri(uplo, diag, n, a, lda)
-                               if uplo == blas.Upper {
-                                       for i := 1; i < n; i++ {
-                                               for j := 0; j < i; j++ {
-                                                       aCopy[i*lda+j] = 0
-                                                       a[i*lda+j] = 0
-                                               }
-                                       }
-                               } else {
-                                       for i := 0; i < n; i++ {
-                                               for j := i + 1; j < n; j++ {
-                                                       aCopy[i*lda+j] = 0
-                                                       a[i*lda+j] = 0
-                                               }
-                                       }
-                               }
-                               if diag == blas.Unit {
-                                       for i := 0; i < n; i++ {
-                                               a[i*lda+i] = 1
-                                               aCopy[i*lda+i] = 1
-                                       }
-                               }
-                               ans := make([]float64, len(a))
-                               bi.Dgemm(blas.NoTrans, blas.NoTrans, n, n, n, 1, a, lda, aCopy, lda, 0, ans, lda)
-                               iseye := true
-                               for i := 0; i < n; i++ {
-                                       for j := 0; j < n; j++ {
-                                               if i == j {
-                                                       if math.Abs(ans[i*lda+i]-1) > tol {
-                                                               iseye = false
-                                                               break
-                                                       }
-                                               } else {
-                                                       if math.Abs(ans[i*lda+j]) > tol {
-                                                               iseye = false
-                                                               break
-                                                       }
-                                               }
-                                       }
-                               }
-                               if !iseye {
-                                       t.Errorf("inv(A) * A != I. Upper = %v, unit = %v, n = %v, lda = %v",
-                                               uplo == blas.Upper, diag == blas.Unit, n, lda)
-                               }
-                       }
-               }
-       }
-}