The Yokogawa MATLAB TOOLKIT contains MEX files. MEX stands for MATLAB Executable. A MEX-file provides an interface between MATLAB and subroutines written in C, C++ or Fortran. When compiled, MEX files are dynamically loaded and allow non-MATLAB code to be invoked from within MATLAB as if it were a built-in function.
To support the development of MEX files, MATLAB offers external interface functions that facilitate the transfer of data between MEX files and MATLAB.