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b10f3a00f3
This is an API breaking change. NewDense now panics if len(mat) != r*c, unless mat == nil. When mat is nil a new, correctly sized slice is allocated.
27 lines
523 B
Go
27 lines
523 B
Go
// Copyright ©2013 The gonum Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package mat64
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import (
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check "launchpad.net/gocheck"
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)
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func (s *S) TestQRD(c *check.C) {
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for _, t := range []struct {
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a *Dense
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}{
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{
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a: NewDense(4, 3, []float64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}),
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},
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} {
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qf := QR(DenseCopyOf(t.a))
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r := qf.R()
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q := qf.Q()
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q.Mul(q, r)
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c.Check(t.a.EqualsApprox(q, 1e-12), check.Equals, true)
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}
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}
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