tex.math.in.alt string tex.math.in.alt TeX notation used for equations If you want type math directly in TeX notation in equations, this parameter specifies notation used. Currently are supported two values -- plain and latex. Empty value means that you are not using TeX math at all. Preferred way for including TeX alternative of math is inside of textobject element. Eg.: E=mc squared E=mc^2 ]]> If you are using graphic element, you can store TeX inside alt element: a^2+b^2=c^2 ]]> If you want use this feature, you should process your FO with PassiveTeX, which only supports TeX math notation. When calling stylsheet, don't forget to specify also passivetex.extensions=1. If you want equations in HTML, just process generated file tex-math-equations.tex by TeX or LaTeX. Then run dvi2bitmap program on result DVI file. You will get images for equations in your document.