Science
R-project
R-project(Free)Octave
Octave(Free)Math Calculator
Graphnow(Trial version)Area Volume and Weight Calculator
Lemosoft Design Studio(Free)Maple
Maplesoft(Trial version)Zelscope
Konstantin Zeldovich(Free)Satscape
Satscape(Trial version)ECam - CNC Conversational Programming
dev(Free)Maths Test For Kids
NJS Computing Services(Free)Digital Logic Design
digital circuit design(Free)