C++ Math Library Reference

nnz

Number of nonzero matrix elements

C++ Prototype

mwArray nnz(const mwArray &X)

C++ Syntax

#include "matlab.hpp"

mwArray X;             // Input argument(s)
mwArray n;             // Return value

n = nnz(X);

MATLAB Syntax

n = nnz(X)

See Also

MATLAB nnz     Calling Conventions

nnls

nonzeros