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