Changes

<math>\sqrt{\frac{1}{4}} = \frac{1}{2}</math>

<math>\sqrt{\frac{1}{4}} = \frac{1}{2}</math>

Highly complex mathematical expressions are also possible; :

Highly complex mathematical expressions are also possible; for example, the following code<ref>[https://meta.wikimedia.org/wiki/Help:Displaying_a_formula Mediawiki Help:Displaying a Formula]</ref>:

   \operatorname{erfc}(x) =

   \operatorname{erfc}(x) =

   \frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =

   \frac{2}{\sqrt{\pi}} \int_x^{\infty} e^{-t^2}\,dt =