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MathGroup Archive 2001

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Re: Plot-Function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31166] Re: [mg31158] Plot-Function
  • From: BobHanlon at aol.com
  • Date: Tue, 16 Oct 2001 01:18:41 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 2001/10/14 4:59:54 AM, mav at justmail.de writes:

>in Mathematica, 
>I've got two functions (f1 and f2).
>
>
>Is it possible to plot the first function (f1) from x = 0 to 3 and the
>second 
>one from x = 3 to 6 in _one_ Graphic?
>

Needs["Graphics`Graphics`"];
Needs["Graphics`Colors`"];

f1[x_] := x^2;
f2[x_] := 12-x;

Plot[f1[x]-UnitStep[x-3]*(f1[x]-f2[x]), 
    {x,0,6}, PlotStyle -> 
      {AbsoluteThickness[2], Red}, 
    Epilog->{Text["f1",{2,f1[2]},{1,-1}], 
        Text["f2",{4.5,f2[4.5]},{-1,-1}]}];

DisplayTogether[
    Plot[f1[x], {x,0,3}, PlotStyle -> 
        {AbsoluteThickness[2], Blue}, 
      Epilog->{Text["f1",{2,f1[2]},{1,-1}], 
          Text["f2",{4.5,f2[4.5]},{-1,-1}]}], 
    Plot[f2[x], {x,3,6}, PlotStyle -> 
        {AbsoluteThickness[2],Red}]];


Bob Hanlon
Chantilly, VA  USA


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