10 Mar
2006
10 Mar
'06
10:24 p.m.
Hi, Vladimir Vladimir Kisil wrote:
RC> But that appears to be missing the possibiliby of fractional powers.
I am not sure what fractional powers of a negative values should be...
For example csgn(x)^(1/2) where it later turns out that x==-1. It seems to me that the rewriting rule you suggested would get that wrong. Cheers -richy. -- Richard B. Kreckel <http://www.ginac.de/~kreckel/>