Here, I copied the different format that can be used in this blog.

## Lists

• One
• Two
• Three
• Four

This is a cite. —Me

## Images

Images can be made zoomable. Simply add data-zoomable to <img> tags that you want to make zoomable.

## Math expressions

You just need to surround your math expression with $$, like $$ E = mc^2 $$. If you leave it inside a paragraph, it will produce an inline expression, just like $$E = mc^2$$. To use display mode, again surround your expression with $$ and place it as a separate paragraph. Here is an example:

$\sum_{k=1}^\infty |\langle x, e_k \rangle|^2 \leq \|x\|^2$

You can also use $$...$$ instead of  for display mode math. MathJax will automatically number equations:

$$\label{eq:cauchy-schwarz} \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)$$

and by adding \label{...} inside the equation environment, we can now refer to the equation using \eqref.

## Tables

Using markdown to display tables is easy. Just use the following syntax:

| Left aligned | Center aligned | Right aligned |
| :----------- | :------------: | ------------: |
| Left 1       | center 1       | right 1       |
| Left 2       | center 2       | right 2       |
| Left 3       | center 3       | right 3       |


That will generate:

Left aligned Center aligned Right aligned
Left 1 center 1 right 1
Left 2 center 2 right 2
Left 3 center 3 right 3

A sample blog page that demonstrates the inclusion of Tweets/Timelines/etc.

## Tweet

An example of displaying a tweet:

## Code

s = "Python syntax highlighting"
print s

s <- "R syntax highlighting"
print s