MathJax’s TeX preprocessor by default uses \( and \) to delimit
inline math expressions. They do not use $.
The obvious reason is since $ happens to be a common character that
has meaning in common usage and is regularly used on its own, and any
content that that uses $ to denote currency for example would have to
now escape it.
This page shows how to change the default delimiters using some JavaScript
window.MathJax = {
tex: {
inlineMath: [['$', '$'], ['\\(', '\\)']]
}
};
Notes:
20221127114316 Enabling MathJax support on Github pages
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