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Re: Integration of Exp[-x^2]/(1 + Exp[a * x])

• To: mathgroup at smc.vnet.net
• Subject: [mg39664] Re: Integration of Exp[-x^2]/(1 + Exp[a * x])
• From: Marc Noël <marc.noel at skynet.be>
• Date: Fri, 28 Feb 2003 04:45:35 -0500 (EST)
• Organization: MGE / école sup des affaires
• References: <b3hs7u$iki$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

OOPs, one should be wary of copy and paste, David is right, I missed the 
exponantial and it make a big difference, sorry I have no answer for you

marc

Stefan a écrit:
> Hello,
> 
> 
> 
> I have to integrate the function Exp[-x^2]/(1 + Exp[a * x]) where a is
> real-valued parameter. Unfortunately
> 
> 
> 
> Integrate[Exp[-x^2]/(1 + Exp[a * x]), x]
> 
> 
> 
> yields no results. Does anyone know a clever trick I might have missed? Any
> hint would be welcome,
> 
> 
> Thanks in advance, Stefan
> 
> 
> 
>