How can I compile a library for C using the MATLAB toolbox function?

I have followed the tutorial to build a library for C which consists the MATLAB function "igamma". Compiling with C did not report any error. However, when I tried to run it, it showed a fatal error saying that '''Undefined variable "sym" or class "sym.useSymForNumeric".'''

Answer 1

[Walter Roberson]

Nothing from the Symbolic Toolbox can be compiled.

[Walter Roberson]

The corresponding numeric routine is gammainc() . However, that accepts only real arguments.

[Zhe Shen]

That is exactly the problem since I am dealing with complex numbers. So is there any way to utilize MATLAB "igamma" function in C code?

[Walter Roberson]

No, there is no way to use the MATLAB igamma in C code.

I find fortran source at http://zeta.math.utsa.edu/~gokhman/ftp/papers/igf.pdf