Files
gonum/asm/f64/scal.go
2017-04-21 08:06:49 +09:30

37 lines
766 B
Go

// 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.
//+build !amd64 noasm appengine
package f64
func ScalUnitary(alpha float64, x []float64) {
for i := range x {
x[i] *= alpha
}
}
func ScalUnitaryTo(dst []float64, alpha float64, x []float64) {
for i, v := range x {
dst[i] = alpha * v
}
}
func ScalInc(alpha float64, x []float64, n, incX uintptr) {
var ix uintptr
for i := 0; i < int(n); i++ {
x[ix] *= alpha
ix += incX
}
}
func ScalIncTo(dst []float64, incDst uintptr, alpha float64, x []float64, n, incX uintptr) {
var idst, ix uintptr
for i := 0; i < int(n); i++ {
dst[idst] = alpha * x[ix]
ix += incX
idst += incDst
}
}