Render international languages in texrendr

[Divide-By-0]

For instance, Chinese characters do not render in Codecogs, so detect any non-standard or international characters and default all such equations to render in Texrendr instead. For instance, $$P{\mbox{拒绝} \mid H_{0} \mbox{为真}} = \alpha$$.

[Divide-By-0]

Also, if we type \text{▱} on Texrendr, it can show the parallelogram symbol (▱), but this code cannot work in the Auto-LaTex Equations add-on for Google Docs.