Number of nonzero matrix elements

C Prototype

mxArray *mlfNnz(mxArray *X);

C Syntax

#include "matlab.h"

mxArray *X;                 /* Required input argument(s) */
mxArray *n = NULL;          /* Return value */

mlfAssign(&n, mlfNnz(X));

MATLAB Syntax

n = nnz(X)

See Also

MATLAB nnz     Calling Conventions