Maple

Solve complex mathematical operations

Microsoft Mathematics

Solve mathematical operations with this free tool

Mathematica

Platform for computational development

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

WinPlot

Generate 2D and 3D graphics

Octave

Applied calculus software very similar to MATLAB

Statgraphics

Carry out statistical analyses on your data

Derive

Powerful tool for symbolic mathematic calculations

GeoEnZo

Digital board to teach and learn maths

Scilab

The most comprehensive tool to perform numerical calculations

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

MathType

Complete mathematical equation and formula editor

Gretl

Application for econometric analyses

Geometry

Complete trigonometry and geometry calculations easily

PASW

One of the most powerful statistic solutions on the market

Mathcad

Software for engineering calculations

Algodoo

A fun way to learn physics

Physics 101 SE

Learn physics and calculate anything whenever you want

ChemSketch

Tool to learn chemistry by drawing compound structures

Physion

2D virtual physics laboratory

Model ChemLab

Simulate a chemistry lab on your PC

Biogenesis

Observe the evolutionary process of various organisms

Serial Cloner

Molecular biology application

QPeriodicTable

Discover all the secrets of the chemical elements

PhET

Carry out dozens of scientific experiments from your PC

Curved Spaces

Represent interconnected universes on your PC

ArgusLab

Application to view and develop molecules

FluidSIM

Program to create exciting electro-pneumatic circuits

EniG. Periodic Table of the Elements

Free periodic table of elements with many extra features

SnapGene Viewer

Observe DNA sequences