# Playing with LaTeX

Just learned that the plug-in I use to format $\LaTeX$ has an option that lets you control the size of the formula when using displaystyle. Have to try it.

$\displaystyle{f = \frac{1}{2}a_0 + \sum_{n=1}^{\infty}\left\{a_n\cos nt + b_n \sin nt \right\}}$

with the coefficients

$\displaystyle{a_n = \frac{1}{\pi}\int_{-\pi}^\pi f(t) \cos nt \mbox{dt}, b_n = \frac{1}{\pi}\int_{-\pi}^\pi f(t) \sin nt \mbox{dt}}$

Beautiful.