Numbering Equations. If the names are good enough, you'll probably remember them. Resetting Automatic Equation Numbering for how to address this. … The TeX input processing in MathJax can be configured to add equation numbers to displayed equations automatically. I show a way to store the equations first in a expl3 seq - variable and write the equations with labels to a separate file. Each equation will receive a number. I can auto-number mathjax equations in an R markdown document in RStudio by adding the following statement to the beginning of the Rmd document: