Cancel Package

Installation

Download the cancel package here: ftp://ftp.dante.de/tex-archive/help/Catalogue/entries/cancel.html

Mac OS X

You can install the cancel package on Mac by downloading cancel.zip, unzipping, and moving cancel.sty to ~/Library/texmf/tex/latex.

Usage

There are two handy functions available from the cancel package: cancel and cancelto.

Latex Source	Result
\dfrac{\partial\phi}{\partial t} +\dfrac{\partial\left(u_{i}\phi\right)}{\partial x_{i}} = \dfrac{\partial}{\partial x_{i}}\left( D_{\phi}\dfrac{\partial\phi}{\partial x_{i}} \right)
\cancel{ \dfrac{\partial\phi}{\partial t} } +\dfrac{\partial\left(u_{i}\phi\right)}{\partial x_{i}} = \dfrac{\partial}{\partial x_{i}}\left( D_{\phi}\dfrac{\partial\phi}{\partial x_{i}} \right)
\dfrac{\partial\phi}{\partial t} +\dfrac{\partial\left(u_{i}\phi\right)}{\partial x_{i}} = \cancelto{0}{ \dfrac{\partial}{\partial x_{i}}\left( D_{\phi}\dfrac{\partial\phi}{\partial x_{i}} \right) }
\dfrac{\partial\phi}{\partial t} +\dfrac{\partial\left(u_{i}\phi\right)}{\partial x_{i}} =\cancelto{0}{ \dfrac{\partial}{\partial x_{i}}\left( \dfrac{1}{ \cancelto{\infty}{Pr} } \,\,\,\,\,\,\,\,\dfrac{\partial\phi}{\partial x_{i}} \right) }