Internetfund
Internetfund
Imaginary numbers aren't real, they can't hurt you!
sin(t) is a sine of the times.

Euler? I hardly know her!
久违的 #mathjokes (sorta
(隔壁搞dynamic的)I'm a simple guy I like simple Lie groups.
And another sticker, maybe a bit nerdy
Trump und Pi sind beide irrational, aber Pi ist wenigesten berechenbar.