s-function to perform integration & differentiation

i wanted to know how to write an s-function to make a custom block that performs integration or differentiation or solve a differential equation of a polynomial given as input. i needed some help with the code of such a function as it does not seem to accept the c++ syntax in script file mode. thank you

Answer 1

[Kaustubha Govind]

Are you writing MATLAB-file S-functions? If so, I would recommend looking at examples by opening up:

    >> sfundemos

And browse into Level-2 MATLAB-file S-functions. Of particular interest may be:

    >> msfcndemo_vsfunc
    >> msfcndemo_limintm