f32

Documentation

Overview

Package f32 provides float32 vector primitives.

Index

• func AxpyInc(alpha float32, x, y []float32, n, incX, incY, ix, iy uintptr)
• func AxpyIncTo(dst []float32, incDst, idst uintptr, alpha float32, x, y []float32, ...)
• func AxpyUnitary(alpha float32, x, y []float32)
• func AxpyUnitaryTo(dst []float32, alpha float32, x, y []float32)
• func DdotInc(x, y []float32, n, incX, incY, ix, iy uintptr) (sum float64)
• func DdotUnitary(x, y []float32) (sum float64)
• func DotInc(x, y []float32, n, incX, incY, ix, iy uintptr) (sum float32)
• func DotUnitary(x, y []float32) (sum float32)
• func GemvN(m, n uintptr, alpha float32, a []float32, lda uintptr, x []float32, ...)
• func GemvT(m, n uintptr, alpha float32, a []float32, lda uintptr, x []float32, ...)
• func Ger(m, n uintptr, alpha float32, x []float32, incX uintptr, y []float32, ...)
• func L2DistanceUnitary(x, y []float32) (sum float32)
• func L2NormInc(x []float32, n, incX uintptr) (sum float32)
• func L2NormUnitary(x []float32) (sum float32)
• func ScalInc(alpha float32, x []float32, n, incX uintptr)
• func ScalIncTo(dst []float32, incDst uintptr, alpha float32, x []float32, n, incX uintptr)
• func ScalUnitary(alpha float32, x []float32)
• func ScalUnitaryTo(dst []float32, alpha float32, x []float32)
• func Sum(x []float32) float32

Functions

func AxpyInc

func AxpyInc(alpha float32, x, y []float32, n, incX, incY, ix, iy uintptr)

AxpyInc is

for i := 0; i < int(n); i++ {
	y[iy] += alpha * x[ix]
	ix += incX
	iy += incY
}

func AxpyIncTo

func AxpyIncTo(dst []float32, incDst, idst uintptr, alpha float32, x, y []float32, n, incX, incY, ix, iy uintptr)

AxpyIncTo is

for i := 0; i < int(n); i++ {
	dst[idst] = alpha*x[ix] + y[iy]
	ix += incX
	iy += incY
	idst += incDst
}

func AxpyUnitary

func AxpyUnitary(alpha float32, x, y []float32)

AxpyUnitary is

for i, v := range x {
	y[i] += alpha * v
}

func AxpyUnitaryTo

func AxpyUnitaryTo(dst []float32, alpha float32, x, y []float32)

AxpyUnitaryTo is

for i, v := range x {
	dst[i] = alpha*v + y[i]
}

func DdotInc

func DdotInc(x, y []float32, n, incX, incY, ix, iy uintptr) (sum float64)

DdotInc is

for i := 0; i < int(n); i++ {
	sum += float64(y[iy]) * float64(x[ix])
	ix += incX
	iy += incY
}
return

func DdotUnitary

func DdotUnitary(x, y []float32) (sum float64)

DdotUnitary is

for i, v := range x {
	sum += float64(y[i]) * float64(v)
}
return

func DotInc

func DotInc(x, y []float32, n, incX, incY, ix, iy uintptr) (sum float32)

DotInc is

for i := 0; i < int(n); i++ {
	sum += y[iy] * x[ix]
	ix += incX
	iy += incY
}
return sum

func DotUnitary

func DotUnitary(x, y []float32) (sum float32)

DotUnitary is

for i, v := range x {
	sum += y[i] * v
}
return sum

func GemvN

func GemvN(m, n uintptr, alpha float32, a []float32, lda uintptr, x []float32, incX uintptr, beta float32, y []float32, incY uintptr)

GemvN computes

y = alpha * A * x + beta * y

where A is an m×n dense matrix, x and y are vectors, and alpha and beta are scalars.

func GemvT

func GemvT(m, n uintptr, alpha float32, a []float32, lda uintptr, x []float32, incX uintptr, beta float32, y []float32, incY uintptr)

GemvT computes

y = alpha * Aᵀ * x + beta * y

where A is an m×n dense matrix, x and y are vectors, and alpha and beta are scalars.

func Ger

func Ger(m, n uintptr, alpha float32,
	x []float32, incX uintptr,
	y []float32, incY uintptr,
	a []float32, lda uintptr)

Ger performs the rank-one operation

A += alpha * x * yᵀ

where A is an m×n dense matrix, x and y are vectors, and alpha is a scalar.

func L2DistanceUnitary

func L2DistanceUnitary(x, y []float32) (sum float32)

L2DistanceUnitary is the L2 norm of x-y.

func L2NormInc

func L2NormInc(x []float32, n, incX uintptr) (sum float32)

L2NormInc is the level 2 norm of x.

func L2NormUnitary

func L2NormUnitary(x []float32) (sum float32)

L2NormUnitary is the level 2 norm of x.

func ScalInc

func ScalInc(alpha float32, x []float32, n, incX uintptr)

ScalInc is

var ix uintptr
for i := 0; i < int(n); i++ {
	x[ix] *= alpha
	ix += incX
}

func ScalIncTo

func ScalIncTo(dst []float32, incDst uintptr, alpha float32, x []float32, n, incX uintptr)

ScalIncTo is

var idst, ix uintptr
for i := 0; i < int(n); i++ {
	dst[idst] = alpha * x[ix]
	ix += incX
	idst += incDst
}

func ScalUnitary

func ScalUnitary(alpha float32, x []float32)

ScalUnitary is

for i := range x {
	x[i] *= alpha
}

func ScalUnitaryTo

func ScalUnitaryTo(dst []float32, alpha float32, x []float32)

ScalUnitaryTo is

for i, v := range x {
	dst[i] = alpha * v
}

func Sum

func Sum(x []float32) float32

Sum is

 var sum float32
 for _, v := range x {
		sum += v
 }
 return sum