macrakis at gmail.com wrote on 09/28/2010 12:30:44 PM:
> I'm surprised that log(-1) doesn't simplify to %pi, even with
domain:complex.
>
> Is this because someone is trying to preserve the multiple-
> valuedness? But we don't preserve multiple-valuedness in many
> other cases, e.g. sqrt(-1), asin(1), or for that matter log(%e).
I was also surprised. But notice that plog(-1) --> %i %pi.
--Barton