# How can I prevent LaTeX from breaking inline formulas globally?

I am using the acmsmall template and my inline formulas are being broken at equal signs and arrows; how can I prevent them from being typeset like that globally (i.e. without having to put tildes everywhere)?

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Possible duplicate: tex.stackexchange.com/questions/10850/… –  diabonas Mar 25 '11 at 14:49
@diabonas: Good that you found that question. But here it's about avoiding these line breaks globally. The answers to that other question don't address this. –  Hendrik Vogt Mar 25 '11 at 14:52
I added globally to the title, so that is clearer –  NoWhereMan Mar 25 '11 at 15:14

Increase the penalty for line breaks at relation symbols and binary operators:

\relpenalty=9999
\binoppenalty=9999


If you simply include these commands in your preamble (between \documentclass{...} and \begin{document}), it will prevent line breaks in most cases, but in extreme situations, they can still be broken. If you set

\relpenalty=10000
\binoppenalty=10000


equations will never be broken - this may, however, destroy your layout!

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wonderful, that seems to have done the trick, thank you! –  NoWhereMan Mar 25 '11 at 15:07

\mbox{$equation$} is not an answer, unfortunately: the spacing in the equation doesn't grow or shrink together with the other spaces in the line. The "correct" answer is

$LHS=\nobreak RHS$


TeX will choose another break point, if there is one, or warn about an Overfull \hbox

Diabonas's answer shows how to avoid such breaks globally, and correctly warns about the dangers of doing so.

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thanks, diabonas' answer worked great. –  NoWhereMan Mar 25 '11 at 15:08