Octave

Applied calculus software very similar to MATLAB

Geometry

Complete trigonometry and geometry calculations easily

PASW

One of the most powerful statistic solutions on the market

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Microsoft Mathematics

Solve mathematical operations with this free tool

WinPlot

Generate 2D and 3D graphics

Statgraphics

Carry out statistical analyses on your data

GeoEnZo

Digital board to teach and learn maths

Scilab

The most comprehensive tool to perform numerical calculations

Gretl

Application for econometric analyses

MathType

Complete mathematical equation and formula editor

Derive

Powerful tool for symbolic mathematic calculations

Maple

Solve complex mathematical operations

Mathematica

Platform for computational development

Mathcad

Software for engineering calculations

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

Owely

Take screen captures and share them on the Internet

Screenpresso

Easily capture images and video on your screen

StepShot

Create incredible manuals for your applications

LightShot

Take screenshots and easily edit them

Greenshot

Capture your screen and edit the images directly

Snip

Microsoft renovates its screenshot tool

Skitch

Mac's best screen capturing utility now available for Windows

ScreenHunter

An effective way of capturing your screen

HyperSnap

Capture your PC's screen in many different ways

Snaplr

Capture your computer screen

Adobe Captivate

Create professional video tutorials

Action!

Record everything that happens on your PC

Cool Screen Capture

The most entertaining way to take screen captures

ShareX

Complete open source screen capturer

Gadwin PrintScreen

Take screenshots of any web or application