Groups > comp.soft-sys.math.maple > #185

Re: Multiple plots with stepped parameters

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From	Axel Vogt <&noreply@axelvogt.de>
Newsgroups	comp.soft-sys.math.maple
Subject	Re: Multiple plots with stepped parameters
Date	Sun, 19 Jun 2011 21:38:03 +0200
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On 19.06.2011 20:21, Salmon Egg wrote:
> My example will based upon blackbody radiation. Suppose the emission at
> a frequency nu at various temperatures goes like
>
> J := 1/(exp(nu/T)-1)
>
> How do I plot J against nu for all T in a list like
>
> {0.5, 1.0. 2.0, 5.0, 10.0}?
>
> I think I see how to do that if I listed separate functions in the plot
> command. ie
>
> 1/(exp(nu/0.5)-1), 1/(exp(nu/1.0)-1), ...
>

You may have a scaling problem for showing it, but for example:

L:=[0.5, 1.0. 2.0, 5.0, 10.0]; # use an ordered list, not a set

P:=NULL;
for t in L do        # run through the list
   eval(J, nu=t);     # evaluate expression
   plot(%, T=0 .. 1); # plot for each
   P:=P, %;           # remember it
end do:

plots[display](P);   # print

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Thread

Multiple plots with stepped parameters Salmon Egg <SalmonEgg@sbcglobal.net> - 2011-06-19 11:21 -0700
  Re: Multiple plots with stepped parameters Axel Vogt <&noreply@axelvogt.de> - 2011-06-19 21:38 +0200
    Re: Multiple plots with stepped parameters Joe Riel <joer@san.rr.com> - 2011-06-19 13:46 -0700
  AW: Multiple plots with stepped parameters "Michael Komma" <komma@oe.uni-tuebingen.de> - 2011-06-20 23:34 +0200
    Re: AW: Multiple plots with stepped parameters Salmon Egg <SalmonEgg@sbcglobal.net> - 2011-06-20 17:33 -0700
      Re: AW: Multiple plots with stepped parameters "Barister Mine" <me@privacy.net> - 2011-06-21 07:45 +0300
      AW: AW: Multiple plots with stepped parameters "Michael Komma" <komma@oe.uni-tuebingen.de> - 2011-06-21 11:15 +0200
      Re: AW: Multiple plots with stepped parameters Axel Vogt <&noreply@axelvogt.de> - 2011-06-21 23:04 +0200
  Re: Multiple plots with stepped parameters Roman <wfrisch@gmx.net> - 2011-06-21 00:50 -0700

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