问题
How do I draw a box around a formula in MathJax?
I've seen \boxed{} recommended for LaTeX in general, but MathJax doesn't support that operation. Is there an alternative that does the trick?
回答1:
\boxed is in the AMSmath extension, so if you put "TeX/AMSmath.js" in the extensions array of your configuration, you will be able to use the \boxed{} macro. Alternatively, try \fbox{}.
来源：https://stackoverflow.com/questions/5184977/how-to-box-a-formula-in-mathjax