func ScalUnitaryTo(dst []float32, alpha float32, x []float32) {
	for i, v := range x {
		dst[i] = alpha * v
	}
}
ScalUnitaryTo is
for i, v := range x {
dst[i] = alpha * v
}
package f32
func ScalUnitary(alpha float32, x []float32) {
	for i := range x {
		x[i] *= alpha
	}
}