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Stupid newbie question

  • To: mathgroup at
  • Subject: [mg33134] Stupid newbie question
  • From: "Mike O'Leary" <Gremmie at>
  • Date: Tue, 5 Mar 2002 03:08:36 -0500 (EST)
  • Sender: owner-wri-mathgroup at

I can't seem to get a Plot working.  I have all this typed in the notebook:

Clear[a, b, f]
f[x_] := 1 - (Cos(\[ExponentialE]^(3x/4)))
{a, b} = {-1, 1.5}
Plot [f, {x, a, b}]

I keep getting an error saying f is not a machine-size real number at x
= -1.  Any help is appreciated.  Thanks.

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