operator- function template — Performs subtraction
template<typename T> valarray<T> operator-(const valarray<T>& a, const valarray<T>& b); template<typename T> valarray<T> operator-(const valarray<T>& a, const T& y); template<typename T> valarray<T> operator-(const T& x, const valarray<T>& b);
The -
operator performs
elementwise subtraction. It subtracts each x
-
y
, in which x
is a scalar or an element of a
, and y
is a scalar or an element of b
. When subtracting two arrays, they must
have the same size. The resulting array has the same size as the
argument array(s).