WinPlot

Generate 2D and 3D graphics

PASW

One of the most powerful statistic solutions on the market

Gretl

Application for econometric analyses

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

Derive

Powerful tool for symbolic mathematic calculations

Scilab

The most comprehensive tool to perform numerical calculations

Geometry

Complete trigonometry and geometry calculations easily

Mathcad

Software for engineering calculations

Microsoft Mathematics

Solve mathematical operations with this free tool

Mathematica

Platform for computational development

GeoEnZo

Digital board to teach and learn maths

Maple

Solve complex mathematical operations

Statgraphics

Carry out statistical analyses on your data

MathType

Complete mathematical equation and formula editor

Octave

Applied calculus software very similar to MATLAB

Microsoft Surface SDK

Complete SDK for the Microsoft Surface multi-touch table

OpenGL

2D and 3D graphics standard

Android SDK

Create Android applications with this development kit

.NET Framework 3.5

Develop good-looking applications for Windows

Windows Azure SDK

Toolkit to develop Azure applications

.NET Framework 4.5

Take a look at the new libraries and the new runtime environment

XNA Framework

The libraries that are necessary for XNA Game Studio games

VintaSoftImaging.NET

Tool for .NET developers focused on working with images

.NET Framework Repair Tool

Fix problems with .NET Framework

.NET Framework 4

All the components necessary to create Windows applications

Emu8086

A virtual machine that emulates Intel's 8086 processor