11/04/2007, 10:53 PM
Ivars Wrote:Logarithm itself has 2 branches such that log (-1) = +i *pi or - i*pi.
The logarithm has a branch for each integer
So its not really about chosing the sign of
Quote:h(e^pi/2) = +-i +- 2pik.
Again, this is not true. If we have a fixed point
For example
PS: the name is sqrt and not sgrt
