func divN1(dst, a, b *data.Slice) {
util.Assert(dst.NComp() == a.NComp())
util.Assert(b.NComp() == 1)
for c := 0; c < dst.NComp(); c++ {
cuda.Div(dst.Comp(c), a.Comp(c), b)
}
}
func divNN(dst, a, b *data.Slice) {
cuda.Div(dst, a, b)
}