Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / gonum.org / v1 / gonum / lapack / testlapack / dlae2.go

diff --git a/vendor/gonum.org/v1/gonum/lapack/testlapack/dlae2.go b/vendor/gonum.org/v1/gonum/lapack/testlapack/dlae2.go
deleted file mode 100644 (file)
index 5df1caf..0000000
--- a/vendor/gonum.org/v1/gonum/lapack/testlapack/dlae2.go
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright ©2016 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 (
-       "fmt"
-       "math"
-       "testing"
-)
-
-type Dlae2er interface {
-       Dlae2(a, b, c float64) (rt1, rt2 float64)
-}
-
-func Dlae2Test(t *testing.T, impl Dlae2er) {
-       for _, test := range []struct {
-               a, b, c float64
-       }{
-               {-10, 5, 3},
-               {3, 5, -10},
-               {0, 3, 0},
-               {1, 3, 1},
-               {1, -3, 1},
-               {5, 0, 3},
-               {3, 0, -5},
-               {1, 3, 1.02},
-               {1.02, 3, 1},
-               {1, -3, -9},
-       } {
-               a := test.a
-               b := test.b
-               c := test.c
-               rt1, rt2 := impl.Dlae2(a, b, c)
-
-               errStr := fmt.Sprintf("a = %v, b = %v, c = %v", a, b, c)
-               // Check if rt1 and rt2 are eigenvalues by checking if det(a - λI) = 0
-               a1 := a - rt1
-               c1 := c - rt1
-               det := a1*c1 - b*b
-               if math.Abs(det) > 1e-10 {
-                       t.Errorf("First eigenvalue mismatch. %s. Det = %v", errStr, det)
-               }
-
-               a2 := a - rt2
-               c2 := c - rt2
-               det = a2*c2 - b*b
-               if math.Abs(det) > 1e-10 {
-                       t.Errorf("Second eigenvalue mismatch. %s. Det = %v", errStr, det)
-               }
-       }
-}