# How to write crossed-out math in LaTeX? [duplicate]

As you might know from my other questions, I am still a newbie at LaTeX, so please don't expect me to know anything.

How would I write crossed-out math in LaTeX, which is similar to this, but the line is oblique.

Is that possible?

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## marked as duplicate by Mico, Gonzalo Medina, Harish Kumar, lockstep, WernerOct 6 '12 at 14:53

Have a look at the cancel package. –  Mico Oct 6 '12 at 11:12
@Mico Could you provide further details? –  think123 Oct 6 '12 at 11:45
–  Torbjørn T. Oct 6 '12 at 12:29

The comments above should have solved the problem. But I thought a minimal example will go a long way:

\documentclass{article}
\usepackage{amsmath}
\usepackage[makeroom]{cancel}

\begin{document}
\noindent
\verb|\cancel{5y}|:
$x+\cancel{5y}=0$
\verb|\bcancel{5y}|:
$x+\bcancel{5y}=0$
\verb|\xcancel{5y}|:
$x+\xcancel{5y}=0$
\verb|\cancelto{\infty}{5y}|:
$x+\cancelto{\infty}{5y}=0$

The first three commands work in text mode also i.e., \cancel{5y}, \bcancel{5y} and
\xcancel{5y} works but \verb|\cancelto{\infty}{5y}| is not.
\end{document}


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For some reason, in some cases \cancel and variants have to be inside curly brackets, for example this works: $x^{\cancel{5y}}$ while this fails $x^\cancel{5y}$. The error is Missing { inserted. ... \mathchoice`. –  alfC Jul 1 '14 at 21:15
@alfC When you write super/subscript, it is always better to use braces. –  Harish Kumar Jul 1 '14 at 23:06