'Cosx 'Cosy is a very complex math problem that no one knows the answer to, just like Eiz = 1. All we know about it is that cosx is irreverently equivalent to cosy, which is the same as eix plus e minus ix dot eiy plus e minus iy. No one knows the rest.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.