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How can I strikeout words in math mode (similar to \sout with \usepackage{ulem} in text mode)? I've tried \usepackage{cancel} and \(\cancel{1+1=2}\) but that draws a diagonal line.

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3 Answers 3

up vote 4 down vote accepted

Use something like




And you can of course define a command for convenience.

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This does not work inside math mode, e.g. if I want to strikeout a portion of a phrase in math mode. –  N.N. Jun 13 '11 at 12:20
@N.N.: It's easy to generalize the solution. See update. –  Leo Liu Jun 13 '11 at 12:28
This method does not really work well. The ulem package is necessary, and it changes \emph{} to underlining. –  Jeff Aug 29 '13 at 19:35
@Jeff: Use \normalem. –  Leo Liu Aug 30 '13 at 2:20

Works in math and text mode




enter image description here

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Indeed, but you need to restart the mathmode, don't you? E.g. `$x+\hcancel{$y$}+z$. –  Martin Scharrer Jun 13 '11 at 12:43

version 2 (fine remark from Martin)




  x+\hcancel[red]{ \sum_a \mathcal{D}^a\mathcal{D}_a}=2x+ \sum_a \mathcal{D}^a\mathcal{D}_a+3 


enter image description here

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\hbox{#2} will typeset #2 in textmode, which is fine with y (except maybe a slightly wrong width), but will break horrible with real math expressions. –  Martin Scharrer Jun 13 '11 at 12:44
@Martin yes you are right, I forgot $...$ –  Alain Matthes Jun 13 '11 at 12:56
Does this solution rely on \documentclass{scrartcl}? –  N.N. Jun 13 '11 at 17:16
@N.N. no I think the package `cancel is independent –  Alain Matthes Jun 13 '11 at 17:47

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