Welcome to LaTeX on WordPress blog. This blog is an unofficial website for WordPress users to help them to understand about what LaTeX is!
As an Introduction, I would like to tell you that LaTeX is a programming language, like HTML, CSS etc., which helps you to write Mathematical Formulae with ease. LaTeX is also very useful in drawing graphs, writting books, creating resumes or CV’s.
On WordPress.com; the LaTeX program can be used by prefixing $latex before the LaTeX codes and suffixing $ after the LaTeX codes.

For example:

To write e^{i \pi} +1=0, I wrote $latex e^{i \pi} +1=0$.
Below are the list of posts which might help you understanding LaTeX formating very well: