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greatly improve dlanhs impl, docs and tests

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soypat
2023-09-06 18:34:53 -03:00
committed by Vladimír Chalupecký
parent 92392f3782
commit b79b9f7740
2 changed files with 12 additions and 6 deletions
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8
lapack/testlapack/dlanhs.go
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@@ -19,13 +19,17 @@ type Dlanhser interface {
func DlanhsTest(t *testing.T, impl Dlanhser) {
const tol = 1e-15
work := make([]float64, 9)
allwork := make([]float64, 9)
rnd := rand.New(rand.NewSource(1))
for _, n := range []int{1, 2, 4, 9} {
for _, lda := range []int{n, n + 5} {
a := randomHessenberg(n, lda, rnd)
for _, norm := range []lapack.MatrixNorm{lapack.MaxAbs, lapack.MaxRowSum, lapack.MaxColumnSum, lapack.Frobenius} {
for i := range work[:n] {
var work []float64
if norm == lapack.MaxColumnSum {
work = allwork[:n]
}
for i := range work {
work[i] = math.NaN()
}
want := dlange(norm, a.Rows, a.Cols, a.Data, a.Stride)