math

This is a beautiful math test.

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Einstein produced $E = mc^2$ from his special relativity equations.

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The quadratic formula for the roots of the general quadratic equation:

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

matrices:

\begin{bmatrix}
   a_{11} & a_{12} & a_{13} \\
   a_{21} & a_{22} & a_{23} \\
   a_{31} & a_{32} & a_{33} \\
\end{bmatrix}
\begin{bmatrix}
   x_1 \\
   x_2 \\
   x_3 \\
\end{bmatrix}
=
\begin{bmatrix}
   b_1 \\
   b_2 \\
   b_3 \\
\end{bmatrix}