Octave

Applied calculus software very similar to MATLAB

Scilab

The most comprehensive tool to perform numerical calculations

Gretl

Application for econometric analyses

GeoEnZo

Digital board to teach and learn maths

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Mathcad

Software for engineering calculations

PASW

One of the most powerful statistic solutions on the market

Derive

Powerful tool for symbolic mathematic calculations

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

Statgraphics

Carry out statistical analyses on your data

MathType

Complete mathematical equation and formula editor

Mathematica

Platform for computational development

Microsoft Mathematics

Solve mathematical operations with this free tool

Minitab

One of the best statistical calculation programs

Maple

Solve complex mathematical operations

WinPlot

Generate 2D and 3D graphics

Adobe Acrobat Pro

The most complete version of Adobe Reader

PDF24 Creator

Suite to work with PDF files for free

PDF Unlocker

Unlock any PDF file with a single click of the mouse

PDF Reader

Advanced PDF reader and editor

ABBYY FineReader

Brilliant optical character recognition software

PDFCreator

App to create PDF documents

Solid Converter PDF

Modify PDF files to your own liking

PDF to Word

Convert to Word any PDF files

SuperGeek Free Document OCR

Convert images to text

Xodo PDF Reader & Editor

A complete PDF reader and editor

PDF OCR

Allow your scanned documents to be editeed

Foxit PDF Editor

The first real PDF file editor

Adobe Acrobat Reader

Adobe's program to read and work with PDF files

PDF To JPG Converter

Convert any PDF file to an image format

PDF Editor

Efficient PDF editor