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Try some wikipedia syntax tests here, if you like.

x^\frac{3}{4}

Try a little more complicated math expression:

\sum_{i=1}^{i=\inf}\left(\frac{P(A_{i}| X)}{P(B_{i}}\right)

Try out a little syntax highlighting:

public class Bob{
     public static void main(String args[]){
           System.out.println("Hello, world!");
     }
}