I am a beginner and not well versed on font processing needs yet. I tried the following simple example, but get an error. I am using the standalone context: "txrun | ConTeXt TDS Runner Tool 1.32" Here is my example: %%%%%%%% \starttext \startformula c^2 = a^2 + b^2 \stopformula \stoptext %%%%% The error I get back from context is: " Sorry, but I can't typeset math unless various parameters have been set. This is normally done by loading special math fonts into the math family slots. Your font set is lacking at least the parameter mentioned earlier. mtx-context | fatal error: return code: 256 " I don't know what special math fonts there are or what a math family slot is. Can you help me out. Or point me to a document that will clear this up for me. Thank you. ---------