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--[[User:CatWatcher|CatWatcher]] 17:16, 7 April 2007 (EDT)
--[[User:CatWatcher|CatWatcher]] 17:16, 7 April 2007 (EDT)
::e^(i*pi) = -1 is derived from euler's formula by set <math>\phi = \pi</math>.[[User:Jaques|Jaques]] 17:21, 7 April 2007 (EDT)
::e^(i*pi) = -1 is derived from euler's formula by set <math>\phi = \pi</math>.[[User:Jaques|Jaques]] 17:21, 7 April 2007 (EDT)
::: granted, but I have heard it claimed that this formula is the "e=Mc^2" od mathematics, in that it ties together four of the most infamous numbers in the whole of maths. -1, as for centuries, it was thought that numbers could not be negative, pi, which was always thought to be fractional (hence squaring the circle), i, which was thought to be impossible, but now is termed imaginary, and e, the base of natural logarthims, which underpins calculus.
:::I would certainly say this was Euler's masterpiece, even though I am a mainly a Graph Theorist, and the other 'Euler's Formula' is the one I am most familiar with.--[[User:CatWatcher|CatWatcher]] 18:39, 7 April 2007 (EDT)