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// Copyright ©2015 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.
//go:build !amd64 || noasm || gccgo || safe
// +build !amd64 noasm gccgo safe
package f64
// DotUnitary is
//
// for i, v := range x {
// sum += y[i] * v
// }
// return sum
func DotUnitary(x, y []float64) (sum float64) {
for i, v := range x {
sum += y[i] * v
}
return sum
}
// DotInc is
//
// for i := 0; i < int(n); i++ {
// sum += y[iy] * x[ix]
// ix += incX
// iy += incY
// }
// return sum
func DotInc(x, y []float64, n, incX, incY, ix, iy uintptr) (sum float64) {
for i := 0; i < int(n); i++ {
sum += y[iy] * x[ix]
ix += incX
iy += incY
}
return sum
}
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