It uses MathJax to do the equation rendering, see: http://www.mathjax.org/ http://www.mathjax.org/ The diagrams are rendered to SVG (vector graphics, supporte

It uses MathJax to do the equation rendering, see: http://www.mathjax.org/ http://www.mathjax.org/ The diagrams are rendered to SVG (vector graphics, supported by all modern web browsers).