Test Latex

=Testing Latex in MediaWiki =

$$ \mu_0=4 \pi \cdot \10^{-7} N/A^2$$.

The unit of $$\mu_0$$ is $$Newton/Ampere^2 = N/A^2 = kg m/s^2 1/A^2$$

$$\varepsilon_0=\frac{1}{\mu_0 c^2} $$

$$ = 8.854 \cdot \10^{-12} F/m$$.

The unit of $$\varepsilon_0$$ is Farad/m: $$F/m = A s/V = A^2 s^4/(kg m^2)$$