WARNING: concrete5 5.6 and earlier are end-of-life. Sales from the marketplace have now ended. Click here to learn more about this transition.
This addon allows you to insert an equation using mathTeX syntax. Knowledge of TeX is required. Documentation can be found here: ftp://ftp.ams.org/pub/tex/doc/amsmath/short-math-guide.pdf
The rendering service of forkosh isn't available anymore and has been replaced by http://www.cyberroadie.org/. However, if you intend to use it in production, you should consider install MathTex on your own server. Instructions are available on this page: http://www.forkosh.com/mathtex.html