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MathGroup Archive 2004

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Re: How to plot...

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46043] Re: How to plot...
  • From: bobhanlon at aol.com (Bob Hanlon)
  • Date: Tue, 3 Feb 2004 18:20:48 -0500 (EST)
  • References: <bvnmkr$hai$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

It is not clear how you want f3 handled for x<0

Needs["Graphics`"];

f3[x_ /; x==0] = 1;
f3[x_] := Abs[Sin[x]/x];

Plot[f3[x], {x, 0, 3Pi},
    PlotStyle -> Blue,
    Ticks -> {PiScale, Automatic},
    PlotRange -> All,
     Epilog ->
      {AbsolutePointSize[6], Red, 
        Point[{0, f3[0]}]}];


Bob Hanlon

In article <bvnmkr$hai$1 at smc.vnet.net>, Oliver Kowalke
<oliver.kowalke at t-online.de> wrote:

<< I want to plot sin(x)/x on x=0. 

f3 := Which[x==0,1,0<x,Abs[Sin[x]/x]];

F3 ist defined on x=0 (analytische Fortsetzung).
How can I force mathematica to plot the graph on x=0?


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