Find constant variables

Finds constant variables in .m files

FINDCONSTANTS searches in all the .m files under a chosen directory and writes to an output file (results.txt) all the assignments of constant values to variables. The core of the programme is the regular expression that can be modified to search specific strings.
Assignments have to comply with matlab format (eg: x_1.y_2 = 1.5e-2;)

I use it in programs with many files, where sometimes people use constant values that then forget to update when the conditions are changing.