Calling Mathematica User Defined Function (.nb file) from MATLAB

Dear All,

I have been using MATLAB for a long time but sometimes I need to use special math function which is not defined in MATLAB or MUPAD yet so I need to use my own Mathematica code for a special part of my calculations.

Is there any way to call and use Mathematica user-defined function from MATLAB m file. I have checked other options such as SMATLINK and matlab2mathematica but the problem herein is that you are allowed only use Mathematica default functions like NIntegrate etc. rather then your own Mathematica function.

Thank you for your help in advance