muladd

muladd(x, y, z)

Combined multiply-add, computes x*y+z in an efficient manner. This may on some systems be equivalent to x*y+z, or to fma(x,y,z). muladd is used to improve performance. See fma.

Examples

Basic usage with numbers:
```
julia> muladd(2, 3, 4)
10
```
This example computes 2*3 + 4 using muladd and returns the result.
Compute a polynomial expression:
```
julia> x = 2;
julia> y = 3;
julia> z = 4;
julia> muladd(x^2, y^2, z^2)
52
```
It demonstrates how muladd can be used to efficiently compute a polynomial expression x^2 * y^2 + z^2.

Use with arrays:

julia> a = [1, 2, 3];
julia> b = [4, 5, 6];
julia> c = [7, 8, 9];
julia> muladd.(a, b, c)
3-element Array{Int64,1}:
11
18
27

Here, muladd is applied element-wise to the arrays a, b, and c to compute a[i]*b[i] + c[i] for each element.

Common mistake example:

julia> muladd([1, 2, 3], [4, 5, 6])
ERROR: MethodError: no method matching muladd(::Array{Int64,1}, ::Array{Int64,1})

In this example, the muladd function is called with only two arguments, while it requires three arguments. Make sure to provide all three required arguments when using muladd.

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muladd

Examples

See Also

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