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MathGroup Archive 1998

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Re: plotting singular functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg12812] Re: [mg12770] plotting singular functions
  • From: BobHanlon at aol.com
  • Date: Fri, 12 Jun 1998 04:05:42 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

f[r_, ro_] := Log[Abs[r - ro]]

Plot[f[r, 3], {r, 0, 5}]; 

Restrict the PlotRange:

Plot[f[r, 3], {r, 0, 5}, PlotRange -> {1.5, -3}]; 

Bob Hanlon

In a message dated 6/10/98 7:17:26 AM, perryj at rpi.edu wrote:

>	Does anyone know a way of setting up a singular function, say something
>like f[r_,ro_]:=Log[r - ro] so that it has a finite but perhaps large
>value at the singular point so that it can be plotted? I'm looking
>through the manual (Mathematica Book) now,  hoping to find something
>there. Thought someone may have a way of doing this or have some
>experience with plotting singular functions....


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