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playground:playground

PlayGround

\begin{eqnarray*}
& & \frac{3}{4 \pi}   \sqrt{4 \cdot x^2   12}\\
& & \lim_{n \to \infty}
  \sum_{k=1}^n \frac{1}{k^2} = \frac{\pi^2}{6}\\
& & {\it f}(x) = \frac{1}{\sqrt{x} x^2}\\
& & e^{i \pi} + 1 = 0\;
\end{eqnarray*}

$\sqrt[3]{7}$

playground/playground.txt · Last modified: 2015/01/19 10:51 by gibson