Can I pass a C or shared library function to FMINSEARCH, FZERO or other function with takes an MATLAB function handle as input?

I would like to pass a C or shared library function to a function such as FMINSEARCH, which expects an MATLAB function handle as input and iteratively finds a minimum of the function.

Answer 1

[MathWorks Support Team]

You can use your C or shared library function in the folowing manner:

If you are using a C function, first call this function from a MEX-file, and then call the MEX-file from an MATLAB function. Pass the handle to the wrapper MATLAB function to FMINSEARCH.

For more information about the process of compiling and calling a simple MEX file from MATLAB, see the documentation chapter on "Creating C Language MEX-Files".

If you are using a shared library (DLL) function, write an MATLAB function which uses the LOADLIBRARY and CALLLIB commands to call your shared library function. You can then pass a handle to this wrapper MATLAB function to FMINSEARCH.

For more information, see the documentation chapter on "MATLAB Interface to Generic DLLs".

For information about using C or shared library functions with FMINSEARCH or other MATLAB function which takes an MATLAB function handle as input, please see the Related Solution below.