# How to use MathJax in a question?

I am puzzled by how does one create a question with MathJax in it. I do not know how to use MathJax and I am asking now for help regarding this situation. Thank you.

• When you're composing a question, there's a block on the right side of the screen with formatting help, it contains a mathjax example and a link to more mathjax help. Jun 10 '15 at 16:55

Simply include the MathJax between dollar signs ($), like so: blah blah$\sum_{x=0}^{100}(x)$blah  blah blah$\sum_{x=0}^{100}(x)\$ blah
$$\sum_{x=0}^{100}(x)$$

$$\sum_{x=0}^{100}(x)$$