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I'm attempting to use the +/- sign within a footnote, however when I use the following command it creates a line break and takes up a lot of extra space.

I believe its because I'm putting it in as an equation within a footnote, however I'm not sure how to go about getting the symbol any other way...

~\footnote[1]{The threshold was set at \[\pm\]20\%}.
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Why not simply use $\pm$ or \(\pm\)? – kan Sep 9 '12 at 11:18
Inexperience with LaTeX mostly... – espais Sep 9 '12 at 12:58
Why do you use the ~ in front of \footnote? Footnote numbers should follow the text without a printed space. – Kurt Sep 9 '12 at 14:26
@Kurt: thanks for the point. – espais Sep 10 '12 at 19:42
up vote 5 down vote accepted

Simply replace the displayed math-mode \[ \] by an inline math-mode (between $ symbols):

~\footnote[1]{The threshold was set at $\pm20\%$}.
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I'd probably put the 20 here in math mode too – Joseph Wright Sep 9 '12 at 11:19

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