To typeset a math formula, enter it just as you do in TeX, then mark it using style class math (from the style drop down menu). Your formula will be displayed nicely on your page. The formula will NOT be formated in the WYSIWYG editor. It will be displayed in red, in original TeX input form.
\sin^2 x + \cos^2 x = 1
Here are some examples. fdsafdsafdsa
fds
afds
f fds
The energy is H={a\over 2}(p_1^2+p_2^2) - {b\over 2} (q_1^2+q_2^2) + c(q_2p_1-q_1p_2)+{\text{ higher order terms}}
\left(\, \sum_{k=1}^n a_k b_k \right)^{\!\!2} \le
\left(\, \sum_{k=1}^n a_k^2 \right) \left(\, \sum_{k=1}^n b_k^2 \right)
f(z)\cdot\mathop{\rm Ind}\nolimits_\gamma(z) =
\frac{1}{2\pi i}\oint_\gamma\frac{f({\scriptstyle\xi})}{{\scriptstyle\xi}-z}\,d{\scriptstyle\xi}
\sin(\alpha+\beta)=\sin(\alpha)\cos(\beta)+\cos(\alpha)\sin(\beta)
\matrix{
&&&&&&0\cr
&&&&&&\mapdown{}\cr
\rule 0pt 1.1em .6em
0&\mapright{}&{\cal O}_C&\mapright\iota&\cal E&
\mapright\rho&\cal L&\mapright{}&0\cr
&&\Big\Vert&&\mapdown\phi&&\mapdown\psi\cr
\rule 0pt 1.1em .6em
0&\mapright{}&{\cal O}_C&\mapright{}&\pi_*{\cal O}_D&
\mapright\delta&R^1f_*{\cal O}_V(-D)&\mapright{}&0\cr
&&&&&&\mapdown{\theta_i\otimes\gamma^{-1}}\cr
\rule 0pt 1.1em .6em
&&&&&&\hidewidth R^1f_*\bigl({\cal O}_V(-iM)\bigr)\otimes\gamma^{-1}\hidewidth\cr
&&&&&&\mapdown{}\cr
&&&&&&0
}
\mathop{\rm grd} \phi(z) =
\left(a+\frac{2d}{\pi}\right) v_\infty\, \overline{f'(z)} =
v_\infty \left[ \pi a + \frac{2d}{\pi a +
2dw^{-1/2}(w-1)^{1/2}} \right]^-
-\sum^n_{m=1}
\left(\,\sum^\infty_{k=1} \frac{ h^{k-1}
}{\left(w_m-z_0\right)^2}
\right) = \sum^\infty_{k=1} s_k\, h^{k-1}