Hi, Le 23 avril 2019 à 11:10:11, Gour (gour@atmarama.com) a écrit: Hello, For regular formulas involving e.g. rational numbers, I'm sure that input language for math is quite sufficient, but wonder about drawing part? Metapost (Metafun) is your best friend here. You can insert directly in context some MetaFun code, like this: \starttext Lorem Ipsum… \startMPcode draw ( (0,0) — (1,0) — (0,1)) with color red ; \stopMPcode \stoptext Look at this entry in the wiki: https://wiki.contextgarden.net/MetaPost_in_ConTeXt Also, you will find a link to the meta fun manual in this page, this a good place to start ! Fabrice.