# [tex4ht] [bug #481] Problem with Braces / Brackets in Maths equations using mk4ht latex->mathml

Michal Hoftich michal.h21 at gmail.com
Sun Aug 23 19:02:18 CEST 2020

Hi Nasser,

>
>\documentclass[12pt]{article}
>\usepackage{amsmath}
>\begin{document}
>$\widehat{\dbinom{\odot_\text{v}\odot}{\wr}}$
>\end{document}
>
>
>May be the latex code here is also not valid?. I did not write the above
>latex code myself. I found it long time ago on the net. Do not remember now
>from where.

Yes, this is the same case, you have \odot_\text{v} here. Subscripts
need to be encloded properly in braces as well.

Best regards,
Michal