LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
Novelize - Novelize is an online novel writing app designed to keep authors on track.
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.
Manuskript - Open-source tool for writers.
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
BlankPage - Stay motivated to write, and finish your story