How do you type the dollar sign when you have mathjax installed?

问题

So in Jekyll and Markdown, I can't type $ or its HTML equivalent code, and not \$ nor $\$$. How should I type the dollar sign?

回答1:

To prevent MathJax from using the dollar sign as a delimiter, you can put it in a span, like so:

<span>$</span>

Alternatively, you can enable processEscapes and then you can use the backslash escape \$ for the dollar sign.

回答2:

Enable processEscapes:

MathJax.Hub.Config({
  tex2jax: {
    inlineMath: [['$','$'], ['\\(','\\)']],
    processEscapes: true
  }
});

Then you can simply use \$ to get a plain $.

回答3:

I used mathjax's dollar symbol in that paragraph. It works.

来源：https://stackoverflow.com/questions/36030033/how-do-you-type-the-dollar-sign-when-you-have-mathjax-installed