Octave

Applied calculus software very similar to MATLAB

Derive

Powerful tool for symbolic mathematic calculations

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Geometry

Complete trigonometry and geometry calculations easily

Gretl

Application for econometric analyses

Microsoft Mathematics

Solve mathematical operations with this free tool

Scilab

The most comprehensive tool to perform numerical calculations

PASW

One of the most powerful statistic solutions on the market

WinPlot

Generate 2D and 3D graphics

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

GeoEnZo

Digital board to teach and learn maths

Maple

Solve complex mathematical operations

Mathcad

Software for engineering calculations

MathType

Complete mathematical equation and formula editor

Statgraphics

Carry out statistical analyses on your data

Mathematica

Platform for computational development

Impro-Visor

Music notation software

Chords!

The easiest way to view the guitar tabs of any song

KB Piano

Play instruments with your PC's keyboard

AP Tuner

Practical tuner that is specifically for string instruments

PrestoKeys

Learn to play the piano

Jalmus

Learn or improve your note and rhythm reading level

Electronic Piano

Play more than 100 instruments with your PC's keyboard

Music Maker

An ideal program for non-professional musicians

Drums Room

Drums simulator for your computer

GuitarTM

A complete tuner and a metronome for your guitar

Crescendo Music Notation Editor

Write your music scores on the computer

EarMaster

Train your music hearing

Overture

Create your scores and play them with VST instruments

Power Tab Editor

Transform your music into scores

Piano Marvel

Entertaining and effective classes to learn to play the piano online