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…
NumWorks - The graphing calculator that makes learning math easier.
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
Learney - Knowledge aggregator for developers
LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
eMathHelp.net - Site is created to help people learn math. Includes algebra, calculus, differential equation calculators and notes with many examples.