amsmathfractionssubscriptssuperscripts
the title says it all. It attached a MWE to display the different relative sizes of a subscript within a normal fraction and a superscripted fraction. As you can see, in the superscripted fraction the subscripted letters have the same size as the other letters. How can I change them to be smaller?
\documentclass[a4paper]{article}
\usepackage{amsmath}
\begin{document}
$e^\frac{E_{A}}{k_{B} T}$
$\frac{E_{A}}{k_{B} T}$
\end{document}
Don't use align. Use gather instead.
\documentclass[fleqn]{article}
\usepackage{amsmath}
\begin{document}
\begin{gather}
b := (a \oplus s_1) \oplus s_2 \\
e := 0
\end{gather}
\end{document}
Don't forget nicefrac. And, as erik notes, \sfrac of the xfrac package. Finally, I added a \scriptscriptstyle\frac{}{}.
\documentclass[11pt]{article}
\usepackage{amsmath}
\usepackage{nicefrac,xfrac}
\begin{document}
\begin{align*}
M_{\nicefrac{1}{2}}&= \text{ nicefrac}\\
M_{\sfrac{1}{2}}&= \text{ sfrac}\\
M_{\scriptscriptstyle\frac{1}{2}}&= \text{ \texttt{scriptscriptstyle frac}}
\end{align*}
\end{document}
Best Answer
\displaystylewon't help you here, since your fraction is in the exponent.a recommended approach when
$e$is involved is to use the operator name "exp":\expis already defined in plain tex and latex.