User:Evan/Sandbox

This is my Sandbox. A place to build sandcastles safe from the tide...

Coefficients,
$$\begin{align} a_{11}& =b_{11}& a_{12}& =b_{12}\\ a_{21}& =b_{21}& a_{22}& =b_{22}+c_{22} \end{align} $$

test
$$\begin{align} \kappa=\overrightarrow{k} \end{align} $$