TeX FoG for Mac

TeX FoG (that stands for TeX Formula Graphic user interface) is a tool that helps TeX and LaTeX users type equations without the need to remember all the commands. Compose equations by picking symbols and functions through graphical buttons, and typeset the resulting LaTeX code into a pdf image that you can save, or copy and paste anywhere. You can also paste the LaTeX code directly into your favourite LaTeX editor. Save your equations for later use.