KLatexFormula - KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and...
LibreOffice - Math - Math, LibreOffice, math editor, ODF, OpenFormula, open standards
MathCast - MathCast is an equation editor, an application that allows you to input mathematical equations.
LaTeXiT - Pierre,Chatelier,LaTeXiT
iMathEQ Math Equation Editor - iMathEQ is a mathematics equation or formula editor.
WIRIS editor - WIRIS editor is a visual editor (WYSIWYG) that allows inserting mathematical formulas in web pages.