Mathcad Mathcad is a Windows-based system from MathSoft, Inc. that handles text, graphs and mathematics. It features internet access, Lotus Notes and Email compatibility and has QuickSheets for common...
Maxima Maxima manipulates numerical and symbolic expressions. This includes integrations, Laplace transforms, differentiation, ordinary differential equations, sets, lists, vectors and matrices among...
Mathcad 
Maxima 
