Re: RE: FullSimplify and HypergeometricPFQ

*To*: mathgroup at smc.vnet.net*Subject*: [mg72087] Re: [mg72050] RE: [mg72035] FullSimplify and HypergeometricPFQ*From*: Andrzej Kozlowski <akoz at mimuw.edu.pl>*Date*: Mon, 11 Dec 2006 04:55:21 -0500 (EST)*References*: <NDBBJGNHKLMPLILOIPPOKEKOFEAA.djmp@earthlink.net> <E3FB0E44-E3F0-4FC1-88A9-98DFB9B65DAC@mimuw.edu.pl>

On 11 Dec 2006, at 09:45, Andrzej Kozlowski wrote: > Expressions involving semi-algebraic functions (polynomials with > radicals) already suffer from branching problems, which make them > often impossible do deal with in practice. I should not have used the phrase "semi-algebraic functions" here; that would be the correct description only in the real case. I guess in the complex case they should be referred to as "elements of some algebraic extension of the the field of rational functions" - maybe calling them "algebraic functions" is O.K. Andrzej Kozlowski