cpp/numeric/valarray/operator arith3

Apply binary operators to each element of two valarrays, or a valarray and a value.

@1@ The operators works on valarrays of the same size and returns a valarray with the same size as the parameters with the operation applied to every elements of the two arguments.

@2,3@ Applies the operator between each element of the valarray and the scalar.

Return value
A valarray with the same size as the parameter.

Note
The behaviour is undefined when the two arguments are valarrays with different sizes.