LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
Cronofy - Unified Calendar API for developers
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.
ApPHP Calendar - ApPHP Calendar is a PHP calendar script that may be easily integrated and used with various PHP projects, such as schedulers, event, etc.
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
Calendarix - Calendarix is a powerful and easy to use web-based calendar that runs on PHP and MySQL.