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Test

$tex:\begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}$

matrices don't work :(

i guess that's caus you don't allow the \end command!?

The equation $tex:E=mc^2$ was discovered by Einstein.

The Lorentz transform $tex:\frac{1}{\sqrt{c^2-v^2}}$

the equation $tex:a^2+b^2+c^2$ is an equation. and the value of $tex:\int_0^1 x dx$ is $tex:\frac12$ .

$tex: M= </p> <pre> \begin{bmatrix} a & b/2 \\ b/2 & c \end{bmatrix}. </pre> <p>$

( ... does not work for me..may be not doing something right ?

$tex: </p> <pre>\sqrt { \sin \left( \frac{x}{2 \cdot \pi } \right)} </pre> <p>$

$tex: \frac{dN}{dt} = rN\left(1- \frac{N}{K} \right)$

$tex: K.E.= \frac{1}{2} \cdot \rho \cdot AV^{3}$