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How to make the letters under V bigger, I'm using 10pt on A5 paper in my original document and it's unreadable.

\documentclass{article}

\begin{document}
    $V_{a bc defg}$
\end{document}
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Simeon Simeonov
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  • https://tex.stackexchange.com/a/262296/31034 –  Jan 13 '19 at 12:41
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    I'm assuming that you're not really trying to typeset $V_{a bc defg}$. Please provide a more realistic example. – Mico Jan 13 '19 at 13:31

2 Answers2

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You asked, "How to make the letters under V bigger"? I assume you mean, "as big as the letter V itself". If this assumption is correct, and if you also intend letters in subscript position to continue to be rendered in math-italic mode, you can use a \textstyle directive at the start of the subscript block; see the code below.

That said, it's typographic custom to typeset math-style subscript and superscript material ca 30% smaller than the material on the baseline (here: the single letter "V").

enter image description here

\documentclass{article}
\begin{document}
$V_{abcdefgVVV}$

$V_{\textstyle abcdefgVVV}$
\end{document}
Mico
  • 506,678
3

in normalize and upright:

$V_{\mbox{a bc defg}}$