MathType - The Professional version of Equation Editor- MathType is a powerful interactive tool for Windows and Macintosh that lets you create mathematical notation for word processing, web pages, desktop publishing, presentations, and for TeX, LaTeX, and Math…

SciDaVis - SciDAVis is a free application for Scientific Data Analysis and Visualization.

Math Magic - MathMagic Equation Editor for Desktop Publishing software & Word Processors, Adobe InDesign, QuarkXPress, MS Word, iWork, for Technical writing with very easy interface and fast input.

GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.

MathCast - MathCast is an equation editor, an application that allows you to input mathematical equations.

Matplotlib - matplotlib is a python 2D plotting library which produces publication quality figures in a variety...