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39 lines
833 B
Go
39 lines
833 B
Go
// Copyright ©2016 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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//+build !amd64 noasm appengine
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package f64
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func DscalUnitary(alpha float64, x []float64) {
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for i := range x {
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x[i] *= alpha
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}
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}
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func DscalUnitaryTo(dst []float64, alpha float64, x []float64) {
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for i, v := range x {
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dst[i] = alpha * v
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}
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}
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// incX must be positive.
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func DscalInc(alpha float64, x []float64, n, incX uintptr) {
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var ix uintptr
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for i := 0; i < int(n); i++ {
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x[ix] *= alpha
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ix += incX
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}
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}
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// incDst and incX must be positive.
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func DscalIncTo(dst []float64, incDst uintptr, alpha float64, x []float64, n, incX uintptr) {
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var idst, ix uintptr
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for i := 0; i < int(n); i++ {
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dst[idst] = alpha * x[ix]
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ix += incX
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idst += incDst
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}
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}
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