There are lots of ways, but basically it usually makes a choice based on whatever software is involved in the computation. For instance, see the latest Pynac update (#9901) for some information about this where conjugation doesn't commute with a lot of functions on the branch cut line segment.
I don't think there is some coherent underlying philosophy of branch cuts, other than agreeing with other systems when there is such agreement.
Asked: 2010-09-25 08:34:50 -0600
Seen: 166 times
Last updated: Sep 25 '10