## Posts

Showing posts from October, 2017

### MathJax on Blogger Cheatsheet

1. Placement
$\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$ will generate the formula inline $$\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$$ of a paragraph, where $$\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$$ will render the formula as a seperate image $$\sum_{i=0}^n i^2 = \frac{(n^2+n)(2n+1)}{6}$$ and not inline to the paragraph.

2. Greek letters
For Greek letters, use
$\alpha$ $$\alpha$$$\beta$ $$\beta$$$\delta$ $$\delta$$ or $\Delta$ $$\Delta$$$\gamma$ $$\gamma$$ or $\Gamma$ $$\Gamma$$$\ldots$ $$\ldots$$$\omega$ $$\omega$$ or $\Omega$ $$\Omega$$
3. Superscripts and subscripts

For superscripts and subscripts, use ^ and _.
$x_i^2$ $$x_i^2$$$\log_2x$ $$\log_2x$$
4. Grouping

Superscripts, subscripts, and other operations apply only to the next “group”. A “group” is either a single symbol, or any formula surrounded by curly braces {…}.

If you do $10^10$, you will get a surprise: $$10^10$$. But 10^{10} gives what you probably wanted: $$10^{1-}$$.

Use curly braces to delimit a formula to whi…