I read that you can write mathematical expressions on Github and wanted to use it.
But when I write an expression \left\| \overline{r} \right\|_{\infty,1,2}=\left\| A\overline{x}^*-\overline{f} \right\|_{\infty,1,2} (it is necessary like this), it is shown on Github like this $\left|\overline{r}\right|{\infty,1,2}=\left|A\overline{x}^*-\overline{f}\right|{\infty,1,2}$ and not as an expression
my mapping to Github
But if I remove the _{\infty,1,2} part, everything works as it should