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']}}
};
Since the noundefined extension is included in the combined components that contain the TeX input jax, it may already be in the package list. In that case, if you want to disable it, you can remove it:
window.MathJax = {
tex: {packages: {'[-]': ['noundefined']}}
};
noundefined Options
Adding '[tex]/noundefined'
to the packages
array defines a
noundefined
sub-block of the tex
configuration block with the
following values:
MathJax = {
tex: {
noundefined: {
color: 'red',
background: '',
size: ''
}
}
};
- color: 'red'
This gives the color to use for the text of the undefined macro name, or an empty string to make the color the same as the surrounding mathematics.
- background: ''
This gives the color to use for the background for the undefined macro name, or an empty string to have no background color.
- size: ''
This gives the size to use for the undefined macro name (e.g.,
90%
or12px
), or an empty string to keep the size the same as the surrounding mathematics.