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MathGroup Archive 2006

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Re: Scale ContourPlot axes

  • To: mathgroup at smc.vnet.net
  • Subject: [mg67405] Re: [mg67393] Scale ContourPlot axes
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Thu, 22 Jun 2006 06:21:23 -0400 (EDT)
  • Reply-to: hanlonr at cox.net
  • Sender: owner-wri-mathgroup at wolfram.com

I don't know whether I understand your what you want. Perhaps this...

f[x_,y_]:=Exp[x]*Exp[y];

Plot3D[f[a,b], {a, -2, 2}, {b, -2, 2},PlotRange->All];

ContourPlot[f[a,b], {a, -2, 2}, {b, -2, 2}];

Plot3D[Evaluate[f[a,b]/.{a->Log[a],b->Log[b]}], {a, -2, 2}, {b, -2, 2}];

ContourPlot[Evaluate[f[a,b]/.{a->Log[a],b->Log[b]}], {a, -2, 2}, {b, -2, 2}];


Bob Hanlon

---- Nick <nick.dale.burns at gmail.com> wrote: 
> Hi there,
> 
> I have a ContourPlot with axes of parameters "a" and "b" and contours
> of a function "f". Obviously the parameters, "a" and "b" are varied
> within defined boundary conditions to calculate "f".
> 
> My question: Is it possible to convert the axes to a log scale (within
> ConoutPlot) while maintaining the normal values of these parameters,
> ie. scale the linear axes to a log scale without converting to log
> units?
> 
> I haven't been able to find a way of acheiving this and would really
> appreciate any ideas out there.
> 
> Nick
> 


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