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Re: ProductLog[-Pi/2]

• To: mathgroup at smc.vnet.net
• Subject: [mg44215] Re: ProductLog[-Pi/2]
• From: poujadej at yahoo.fr (Jean-Claude Poujade)
• Date: Tue, 28 Oct 2003 05:53:24 -0500 (EST)
• References: <bnapg7$4lk$1@smc.vnet.net> <bndk8u$g5m$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

"Christos Argyropoulos M.D." <argchris at otenet.gr> wrote in message news:<bndk8u$g5m$1 at smc.vnet.net>...
> Hi,
> Actually this is the expected behaviour;
> You entered an exact number in the ProductLog function, and you get back an
> exact number (i.e. ProductLog[Pi/2])
> Mathematica will keep this special function result in this exact format,
> unless requested to return a numeric result.
[...]
Christos,
Evcharisto poli for your reply, but I'm sorry I don't agree with you.
If I type Gamma[1/2] Mathematica doesn't return 
Gamma[1/2] but Sqrt[Pi] !
So what is the "expected behaviour" ?

Regards,

---
jcp