Software useful for Mathematician, Teachers, Research students, Technical book authors.

- LaTeX Mathematical Documentation System

School level software

- Dr Geo Geometric Figures

Software for Under graduate and higher maths

Research level Free Maths Software

- Singular A Computer Algebra System
- Macaulay 2 is a software system devoted to supporting research in

algebraic geometry and commutative algebra algebraic geometry and commutative algebra - Cocoa Computations in Commutative Algebra
- Kash/Kant Computational Algebraic Number Theory
- Polymake
- CaTS

General Graphics Software

- POVRay Ray tracing Graphical Free software