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MathGroup Archive 2006

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Re: showing variables in plots?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70036] Re: [mg70021] showing variables in plots?
  • From: Bob Hanlon <hanlonr at cox.net>
  • Date: Sun, 1 Oct 2006 04:08:20 -0400 (EDT)
  • Reply-to: hanlonr at cox.net

Use ToString[x]

x=2;

Plot[x^y, {y, 0, 5},
    Epilog ->
      {Text["x = " <> ToString[x], {1.5, 15}]}];


Bob Hanlon

---- Sam Waller <sam.waller at avmet.com> wrote: 
> I'm plotting something like this:
> 
> x = 2;
> 
> curve = Plot[...., DisplayFunction -> Identity];
> 
> txt = Graphics[ Text["x = 2", {10, 10},....] ];
> 
> Show[curve, txt, DisplayFunctio->$DisplayFunction, ...];
> 
> The problem is that I want 'txt' to automatically change if I assign a different value to x so that
> I don't have to edit txt everytime I change the variable x. Something like printf() in C. Can this
> be done in mathematica?
> 
> thanks,
> Sam
> 

--

Bob Hanlon
hanlonr at cox.net



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