Deriving Euler's formula four ways!
20:33
a quaternion version of Euler's formula
21:25
one of the most beautiful techniques
26:57
The most beautiful equation in math, explained visually [Euler’s Formula]
23:18
What REALLY is e? (Euler’s Number)
11:17
Which number is larger? – Math puzzle
28:35
Euler's Formula
36:51
Why are there no 3 dimensional "complex numbers"?
51:16