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34 lines
732 B
Go
34 lines
732 B
Go
// Copyright ©2015 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 f32
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// DdotUnitary is
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// for i, v := range x {
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// sum += float64(y[i]) * float64(v)
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// }
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// return
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func DdotUnitary(x, y []float32) (sum float64) {
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for i, v := range x {
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sum += float64(y[i]) * float64(v)
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}
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return
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}
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// DdotInc is
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// for i := 0; i < int(n); i++ {
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// sum += float64(y[iy]) * float64(x[ix])
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// ix += incX
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// iy += incY
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// }
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// return
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func DdotInc(x, y []float32, n, incX, incY, ix, iy uintptr) (sum float64) {
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for i := 0; i < int(n); i++ {
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sum += float64(y[iy]) * float64(x[ix])
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ix += incX
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iy += incY
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}
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return
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}
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