LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
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.
Sketch - Professional digital design for Mac.
KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
Affinity Designer - Professional creative software, exclusively for Mac.