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Re: How to define a constant in mathematica like Pi

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64008] Re: How to define a constant in mathematica like Pi
  • From: José Carlos Santos <jcsantos at fc.up.pt>
  • Date: Fri, 27 Jan 2006 05:13:19 -0500 (EST)
  • References: <dr7vuo$pdp$1@smc.vnet.net> <dra32q$m1n$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

On 26-01-2006 9:00, Jens-Peer Kuska wrote:

> N[\[DoubleStruckC], prec_:16] := N[300000, prec]
> $Assumptions = {\[DoubleStruckC] > 0};
> 
> and
> 
> Integrate[Exp[-\[DoubleStruckC]*x^2], 
> {x, -Infinity, Infinity}]
> 
> does what you want.

It worked. Thanks a lot.

Best regards,

Jose Carlos Santos


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