h1=. Sandbox

<?
  \begin{eqnarray}
    E &=& mc^2                              \\
    m &=& \frac{m_0}{\sqrt{1-\frac{v^2}{c^2}}}
  \end{eqnarray}

<? d/(2\"a)=d/(2\Omega^2) ?>
 
<?
\displaystyle \sigma_{\lambda} =
	  \frac{24 \pi^3}{\lambda^4 N^2}
	  \left(\frac{n^2-1}{n^2+2}\right)^{\!2}

?>
Avem suport pentru <? \LaTeX ?> !