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, here, here and here.
For some basic information about writing math at this site see e.g. [here](http://meta.math.stackexchange.com/questions/5020/), [here](http://meta.stackoverflow.com/a/70559/155238), [here](http://meta.math.stackexchange.com/questions/1773/) and [here](http://math.stackexchange.com/editing-help#latex).
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.
