Quote:
Originally Posted by Westley
Is it embarassing as a supposed "math geek" if I tell you that I don't see how that equation is true? Can you explain at a level appropriate for somebody who only got a BS, and it was many years ago?
I have no idea how to use an imaginary exponent.

This is Euler's formula that says e^(i*theta) = cos(theta) + i*sin(theta) so since theta = pi, then e^(i*pi) = cos(pi) + i*sin(pi) = 1 + i*0 = 1
Edited to say theta = pi, sorry for the confusion, yes i = sqrt(1) i.e. we choose the "positive branch of sqrt()"...I hope I worded that correctly. Don't want the math phds jumping on for this one