User`s manual

2 Creating C Language MEX-Files

2-14

and so on. Likewise, prhs[0] contains a pointer to the first right-hand side

argument,

prhs[1] points to the second, and so on.

This example,

xtimesy, multiplies an input scalar by an input scalar or matrix

and outputs a matrix. For example, using

xtimesy with two scalars gives

x = 7;

y = 7;

z = xtimesy(x,y)

z =

Using xtimesy with a scalar and a matrix gives

x = 9;

y = ones(3);

z = xtimesy(x,y)

z =

9 9 9

This is the corresponding MEX-file C code.

#include "mex.h"

* xtimesy.c - example found in API guide

* Multiplies an input scalar times an input matrix and outputs a

* matrix.

* This is a MEX-file for MATLAB.

/* $Revision: 1.10 $ */