Gong

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visits member for 1 year, 9 months
seen Nov 15 '12 at 14:42

Nov
14
comment Define square root function over the complex numbers.
Wow. How do you even get such ideas? Amazing. Thanks.
Nov
14
comment Define square root function over the complex numbers.
Sorry for not realizing that, it was obvious. Thank you very much.
Nov
14
comment Define square root function over the complex numbers.
"Consider the square root function defined on C∖R− such that 1√=1", I got problems with that right there. What function is that?
Nov
14
comment Define square root function over the complex numbers.
I can't see how to make this work.
Nov
14
comment Define square root function over the complex numbers.
"z2−1=z2(1−1z2) and the second factor is negative real if and only if z∉[−1,1]", this isn't true. For instance letting z=0.5 contradicts one of the directions, while z=i contradcits the other.
Nov
14
awarded  Student
Nov
14
comment Define square root function over the complex numbers.
"The"? There are two square roots. Not only that, where sould the logarithm be defined?
Nov
14
asked Define square root function over the complex numbers.