MediaWiki can do latex:
∑ n = 0 ∞ ∂ Z x n n ! ∫ x 0 x n cos θ / 2 {\displaystyle \sum _{n=0}^{\infty }\partial {Z}{\frac {x^{n}}{n!}}\int _{x_{0}}^{x_{n}}\cos {\theta /2}}
