# Why doesn't $1 + 1 = 2$ work? [duplicate]

Possible Duplicate:
Math typesetting using  instead of the dollars

MathJAX allows putting inline math in parentheses, e.g. $$1 + 1 = 2$$. But it doesn't seem to work here. Do you know why?

## marked as duplicate by Adam Lear♦Feb 6 '12 at 0:38

• To be more precise, MathJax can be configured to do stuff to $$...$$. But here it has been configured not to. – Henning Makholm Feb 4 '12 at 21:22