e^i(pi) = -1; proof?

I love that equation. Anyone know where I can get it on a t-shirt?

I’d also love a shirt with ∫[sub]1[/sub][sup][sup]3[/sup]√3[/sup]z[sup]2[/sup]dzcos(3[symbol]p[/symbol]/9) = ln([sup]3[/sup]√e*)

(It’s a limerick. ;))

PS- I think I deserve a t-shirt for the bitch of a job that coding was.

Reported.