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Re: how can I solve a function Erfc

• To: mathgroup at smc.vnet.net
• Subject: [mg48420] Re: how can I solve a function Erfc
• From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
• Date: Sat, 29 May 2004 03:06:40 -0400 (EDT)
• Organization: Universitaet Leipzig
• References: <c96h2m$idk$1@smc.vnet.net>
• Reply-to: kuska at informatik.uni-leipzig.de
• Sender: owner-wri-mathgroup at wolfram.com

Hi,


Plot[Evaluate[
    t /. Solve[Erfc[L/(4*(Dg*t)^(1/2))] == 9/10, t][[1]] /. Dg ->
5*10^5], 
    {L, 0, 10}]

Regards
  Jens

aude wrote:
> 
> Hi,
> 
> I have to solve this function:
> 
> Erfc[L/(4*(Dg*t)^(1/2))]= 0.9
> 
> Dg is constant.
> 
> Dg=5*10^5
> 
> I want to plot t as a function of L.
> 
> thanks.
> 
> aude

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  • Re: Re: how can I solve a function Erfc
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