We can use inline equations, \(E = mc^2\)
, or full-line equations like:
$$ \Gamma(t) = \pi \, \Im\left\{ \mathbf{x}_+^H(t) \, \frac{\mathrm{d}}{\mathrm{d} t}\mathbf{x}_+(t) \right\} $$
You can just write in LaTeX, with minor modifications for specifying in-line or full-line equations.
See MathJax for more details and examples.