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MathGroup Archive 2007

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Re: help plot log[f[t]] vs a parameter using an ODE

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81119] Re: help plot log[f[t]] vs a parameter using an ODE
  • From: john boy <johnboy98105 at yahoo.com>
  • Date: Thu, 13 Sep 2007 06:24:28 -0400 (EDT)

{{y -> InterpolatingFunction[{{0., 200.}}, <>]}}
{{x -> InterpolatingFunction[{{1, 41}}, <>]}}

ParametricPlot[{y[t], x[t]}, {t, 0, 200}] 

This brings back errors like 

ParametricPlot::pptr: {y[t], x[t]} does not evaluate
to a pair of real numbers at t =
8.333333333333334`*^-6.
 



--- Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
wrote:

> john wrote:
> 
> <snip>
> 
> > ParametricPlot[y[t], x[t], {t, 0, 200}]
> > 
> > generates
> > 
> > ParametricPlot::pllim: Range specification x[t] is
> not of the form {x,
> > xmin, xmax}
> 
> The first parameter of *ParametricPlot* must be a
> /list/ of functions.
> 
> ParametricPlot[{y[t], x[t]}, {t, 0, 200}]
> 
> <snip>
> 
> -- 
> Jean-Marc
> 



       
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