MathWorks Matlab R2013b - CYGiSO

This contains MathWorks' Matlab R2013b, fully activated and for both 32-Bit and 64-Bit Windows editions!

From http://www.mathworks.com/products/matlab/

MATLAB® is a high-level language and interactive environment for numerical computation, visualization, and programming. Using MATLAB, you can analyze data, develop algorithms, and create models and applications. The language, tools, and built-in math functions enable you to explore multiple approaches and reach a solution faster than with spreadsheets or traditional programming languages, such as C/C++ or Java™.

You can use MATLAB for a range of applications, including signal processing and communications, image and video processing, control systems, test and measurement, computational finance, and computational biology. More than a million engineers and scientists in industry and academia use MATLAB, the language of technical computing.

N.B. AV might go off but then again, if you're on torrenting sites, you should probably know better. If you don't trust the software, you're always free to run it in Sandboxie to check.