Re: ProductLog[-Pi/2]

*To*: mathgroup at smc.vnet.net*Subject*: [mg44223] Re: ProductLog[-Pi/2]*From*: "Christos Argyropoulos M.D." <argchris at otenet.gr>*Date*: Wed, 29 Oct 2003 03:34:06 -0500 (EST)*References*: <bnapg7$4lk$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi everyone, I made a comment yesterday about the ProductLog (actually Lambert's function) and the fact that Mathematica does not simplify ProductLog[Pi/2] to I Pi/2. Similar simplification does happen with a few of the other special functions i.e. Gamma[1/2] returns Sqrt[Pi] but other special results are not known. So my point is that the behaviour is indeed the expected one, when the simplifications are not in the code arriving from the factory. Christos Patras, Greece