# cancel¶

The cancel extension defines the following macros:

\cancel{math}

Strikeout math from lower left to upper right.

\bcancel{math}

Strikeout math from upper left to lower right.

\xcancel{math}

Strikeout math with an “X”.

\cancelto{value}{math}

Strikeout math with an arrow going to value.

This extension is loaded automatically when the autoload extension is used. To load the cancel extension explicitly, add '[tex]/cancel' to the load array of the loader block of your MathJax configuration, and add 'cancel' to the packages array of the tex block.

window.MathJax = {

Alternatively, use \require{cancel} in a TeX expression to load it dynamically from within the math on the page, if the require extension is loaded.