A markdown editor bug? cannot show corrected formula with mathjax

[johnbao6]

I use markdown editor and mathjax to write math formula, sometimes it cannot show corrected form, here is the example:

$$(A_2)\int_{-\infty}^{+\infty} dx $$

Is this a markdown editor's bug?

When I use Basic Editor,it is OK.

Furthermore, in the Preview of markdown editor, the formula shows OK, but when I finish the editor, the answer shows problem.

[johnbao6]

Now I am pretty sure the reason is two underscore _, but I have no idea how to find a simple way to solve it.

[svivian]

I think that underscores make something italic in Markdown so there could be a conflict there. Not sure there's anything I can do in the plugin to solve that. In your mathjax you can try "escaping" the underscores by putting \ before each one.