### Test LaTeX Equation by MathJax

$$\color{Magenta}{a + \rlap{\overbrace{\phantom{b+c+d}}^m} b+ \underbrace{c+d+e}_n + f}

\tag{eg1}

$$

or

$$

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

\tag{eg2}

$$

Please refer to Eq. $(\color{Magenta}{eg1})$ for colorful equation and Eq. $(eg2)$ for normal equation.

Please Right Click the Equation and choose "Show Math As $\Rightarrow$ TeX Commands" to see the code for above equations.

References:

http://www.mathjax.org

http://bbs.emath.ac.cn/thread-5237-1-1.html

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