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MathGroup Archive 2007

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Re: question about evaluation and Manipulate

  • To: mathgroup at smc.vnet.net
  • Subject: [mg78375] Re: [mg78300] question about evaluation and Manipulate
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Fri, 29 Jun 2007 05:50:47 -0400 (EDT)
  • Reply-to: hanlonr at cox.net

f[a_, x_] = a*x;
Manipulate[Plot[f[a, x], {x, 0, 1}], {a, 0, 1}]


Bob Hanlon

---- Yaroslav Bulatov <yaroslavvb at gmail.com> wrote: 
> I'm trying to manipulate a plot where the plotted expression is a
> symbol that should be evaluated before plotting.
> 
> f[x_] = a x;
> Manipulate[Plot[f[x], {x, 0, 1}], {a, 0, 1}]
> 
> This doesn't work, presumably because Plot doesn't have access to the
> value of "a" set by Manipulate. So I'd like to evaluate the first
> argument Plot, but not Plot itself before Manipulate is executed, is
> there a way to do this?
> 
> 



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