Using external libraries with MATLAB, MEX files

Examples of C MEX-Files:
Passing a Scalar
• Computational module
#include
void timestwo(double y[], double x[])
{
y[0] = 2.0*x[0];
return;
}
• MEX-file
#include "mex.h"
void timestwo(double y[], double x[])
{
y[0] = 2.0*x[0];
}
void mexFunction(int nlhs, mxArray *plhs[], int nrhs,
const mxArray *prhs[])
{
double *x, *y;
int mrows, ncols;