### How to format mathematics?

This site has the ability to insert $\LaTeX$ math code into both posts and comments, e.g. $\int_{-\infty}^{+\infty}e^{-\pi x^2}dx=1$, math text rended by MathJax. The format for this is $Your-LaTeX-code$.  Note that double dollar signs $$ create \LaTeX displays. In summary, there are two basic types of formula: • Inline formulas are surrounded by single dollar signs. For example, f(x) = ax^2 + bx + c renders as f(x) = ax^2 + bx + c. • Block formulas are surrounded by double dollar signs. For example, $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ renders, on a separate line, as$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
Greek letters are mostly written by simply spelling them after a backslash with capitalization indicated by first letter. For example, $\alpha \beta \Gamma \Delta$ renders as $\alpha \beta \Gamma \Delta$.