Quote from phattails:
Euler's identity.. Hmmm.

Quote from intradaybill:
No, this is not Euler's identity. It is the equation that the golden ratio satisfies
phi^2 = phi+1
written as
phi = phi^2 - 1
coupled with the Euler identity
e^(ipi)+1 = 0 --> e^(ipi) = -1
you get
phi = phi^2 +e^(ipi)
so we all know who is the true mathematician here![]()
Quote from MAESTRO:
Very, very good! Not very many picked up on that! I always use this equation to illustrate the relationship between phi, pi and e. I just love these kind of tricks to show the beauty of simple math.
While I agree that stating Euler's identity is pretty simple and it illuminates an elegant mathematical truth, actually deriving it would demonstrate the true mathematical skill.Quote from fullautotrading:
What a nonsense one has to hear.
Why don't you use this one then :
phi^2 = phi + sin((n+1/2)x) / sin(x/2) - 2 cos(x) - 2 cos(2x) - 2 cos(3x) - ... - 2 cos (nx)
So you dare call Euler identity "simple math". You must be a real genius.
Why dont you point us to a similar or better identity, with some deeper math and meaning, you have discovered ?
Tom

Quote from kut2k2:
While I agree that stating Euler's identity is pretty simple and it illuminates an elegant mathematical truth, actually deriving it would demonstrate the true mathematical skill.
Likewise anyone can say "E = mc²", but actually deriving it is an altogether different matter.