I was not able to manage how to run the holoCryptoFourier.c code in my visual studio 2012.

I want to write my own program but need to know exactly what type of Fourier transform was used.

There are different types of Fourier transform. Can you write here a mathematical formula for computation of the particular Fourier/Inverse Fourier transforms please?

EDIT 1:

Or perhaps just give me what is output of say:

Fourier({{2,3},{7,4}})

Fourier[{{1,4,2,3},{4,5,7,8},{2,1,8,7},{2,1,3,4}}]

Maybe I can figure it out that way what type was used.

Edit 2:

Or someone who uses M. Visual Studio 2012 who is willing to describe how to install all those required libraries and how to setup all parameters in Visual Studio to make it work.