noundefined
The noundefined extension causes undefined control sequences to be
shown as their macro names rather than generating error messages. So
$X_{\xyz}$
would display as an “X” with a subscript consisting of the
text \xyz
in red.
Note
In version 2, the styling for the undefined macro could be configured. In version 3, this is not yet implemented.
This extension is already loaded in all the components that
include the TeX input jax, other than input/tex-base
. To load the
ams extension explicitly (when using input/tex-base
for
example), add '[tex]/noundefined'
to the load
array of the loader
block of your MathJax configuration, and add 'noundefined'
to the
packages
array of the tex
block.
window.MathJax = {
loader: {load: ['[tex]/noundefined']},
tex: {packages: {'[+]': ['noundefined']}}
};