Octave

Applied calculus software very similar to MATLAB

WinPlot

Generate 2D and 3D graphics

PASW

One of the most powerful statistic solutions on the market

Statgraphics

Carry out statistical analyses on your data

MathType

Complete mathematical equation and formula editor

Maple

Solve complex mathematical operations

Microsoft Mathematics

Solve mathematical operations with this free tool

Geometry

Complete trigonometry and geometry calculations easily

Graphing Calculator 3D

Draw any 2D or 3D function almost instantly

Mathematica

Platform for computational development

Euler Mathematical Toolbox

Complete numerical and algebraic computation system

Gretl

Application for econometric analyses

GeoEnZo

Digital board to teach and learn maths

Scilab

The most comprehensive tool to perform numerical calculations

Derive

Powerful tool for symbolic mathematic calculations

Mathcad

Software for engineering calculations

TickTick

Teamwork oriented task manager

InfraDrive Digital Diary

Complete personal diary with many tools

MeisterTask

Team-oriented task manager

GTD-Free

Full control over all pending tasks

Wunderlist

Useful and simple task manager

Post It Notes

Program to create virtual post-its and notes

Microsoft Sticky Notes

Sticky notes for your PC's desktop

Trello

Organize pending tasks and ideas

Microsoft To-Do

An efficient task manager designed by Microsoft

Notion

Advanced task, list and note management for PC

Evernote

Capture your ideas as notes

Focus To-Do

Manage your productivity with the help of the Pomodoro technique

Glass Notepad

A notepad with transparencies

MetaMoJi Note Lite

Keep all your ideas and notes

Airtable

Application for the management of business projects