Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Touco - Toucan is a small portableapp utility allowing you to synchronise, backup and secure your data with...
GNU Octave - GNU Octave is a programming language for scientific computing.
Mondly - Learn 33 languages in 500 bite-size lessons and 14 conversational modules.
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.