**How to write math**

This might be added as a pointer where to find help:

> For some basic information about writing math at this site see e.g. [here](/help/notation), [here](//meta.math.stackexchange.com/q/5020), [here](//meta.stackexchange.com/a/70559) and [here](//meta.math.stackexchange.com/q/1773).

    For some basic information about writing math at this site see e.g. 
    [here](/help/notation),
    [here](//meta.math.stackexchange.com/q/5020), 
    [here](//meta.stackexchange.com/a/70559) and 
    [here](//meta.math.stackexchange.com/q/1773).

Sometimes this explanation can be added if a post was TeX-ified by other MSE users:

> Some MSE users tried to improve your post using TeX (for better readability). Please check whether these edits did not unintentionally change the meaning of your post.