Hacker News Reader

Euler angles have nothing to do with e^ix = cos x + i sin x. They are a completely different concept.

I am very familiar :) using euler angles involves using trig functions, which is what this thread is about

Yes and no. The x in e^ix is to SO(2) what Euler angles are to SO(3).

This really only says that the connection between Euler's formula and Euler angles is that they're both angles. I would agree with that.

One represents rotation in 2D space, the other in 3D. So I think it's a bit more than that.