<!DOCTYPE html> <html> <head> <title>Example of defining a macro that autoloads an extension</title> <!-- Copyright (c) 2012-2013 The MathJax Consortium --> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <!-- | | This page shows how to define macros that autoloads an extension | where those macros are implemented. | | The \cancel, \bcancel, \xcancel, and \cancelto macros are | all defined within the cancel extension, so we tie these | macros to the function that loads an extension, passing it | the name of the extension to load. | |--> <script type="text/x-mathjax-config"> MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () { MathJax.Hub.Insert(MathJax.InputJax.TeX.Definitions.macros,{ cancel: ["Extension","cancel"], bcancel: ["Extension","cancel"], xcancel: ["Extension","cancel"], cancelto: ["Extension","cancel"] }); }); </script> <script type="text/javascript" src="../MathJax.js?config=TeX-AMS_HTML-full"></script> </head> <body> <p> This page makes <code>\cancel</code>, <code>\bcancel</code>, <code>\xcancel</code>, and <code>\cancelto</code> all be defined so that they will load the <code>cancel.js</code> extension when first used. </p> <p> Here is the first usage: \(\cancel{x+1}\). It will cause the cancel package to be loaded automatically. </p> </body> </html>