2

Is there a $\tau_M$ that to be the most beautiful in size of $\tau$ and its low index?

Arzigoglu
  • 1,348
bigli
  • 123

2 Answers2

3

Something like:

enter image description here

\documentclass{article}
\begin{document}
$\tau_M\quad\mathrm{vs.}\quad\tau_{\!\scriptscriptstyle M}$
\end{document} 
Arzigoglu
  • 1,348
3

You want neither a larger tau nor a smaller M: just push the subscript down with an empty superscript.

\documentclass{article}

\begin{document}

\[
\tau^{}_{M} > \tau_{M} \gg \tau_{\!\scriptscriptstyle M}
\]

\end{document}

where “>” stands for “is more correct than”:

enter image description here

egreg
  • 1,121,712