A MEX file is a function, created in MATLAB, that calls a C/C++ program or a Fortran subroutine. A MEX function behaves just like a MATLAB script or function.

To experiment with calling MEX functions, use the code in Tables of MEX Function Source Code Examples to build and run examples.

For information about creating C++ MEX functions, see Write C++ Functions Callable from MATLAB (MEX Files).

For information about using MEX S-functions in models, see your Simulink^® documentation.