Re^4: root function

Not complex numbers, series of complex numbers. e^(2n+1)πi = -1, for any integer n. Which makes them undefined, for at least some purposes.

Comment on Re^4: root function

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Re^5: root function by psini (Deacon) on Jun 22, 2008 at 07:14 UTC
Following your interpretation of "undefined", sqrt(2) should be undefined too (two solution), or arctan(x) for any x in the interval `[-1,1]` (infinite periodic). Careful with that hash Eugene.	[reply] [d/l]