Microsoft MVP성태의 닷넷 이야기
Type then will see:


MathJax Text 1:

${}$

MathJax Text 2:

${}$


http://www.codecogs.com/eqnedit.php
MathJax basic tutorial and quick reference
UTF-8 Mathematical Operators






Sample 1
    \begin{pmatrix}n \\ k \end{pmatrix} = \begin{cases} \begin{pmatrix}n - 1 \\ k - 1 \end{pmatrix} + \begin{pmatrix}n - 1 \\ k \end{pmatrix} &\mbox { if } 0 < k < n \\ 1 &\mbox { if } \: k = 0 \: or \: k = n \end{cases}

Sample 2
x = {-b \pm \sqrt{b^2-4ac} \over 2a}

Sample 3
\begin{equation}f(x) = \frac{1}{\sqrt{2\pi}} e^{-\frac12 x^2}\end{equation}