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MathGroup Archive 2002

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Re: machine-size real number

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35014] Re: [mg34996] machine-size real number
  • From: BobHanlon at aol.com
  • Date: Thu, 20 Jun 2002 02:13:07 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 6/19/02 6:52:06 AM, Marcello.Losasso at cern.ch writes:

>can anyone explain me why, when trying to plot a function defined in a
>usual
>way,
>do I get an error message of the form:
>
>Plot::plnr : xxx[0.03,x] is not a machine-size real number at
>x=4.16666666666666667*^-7
>
>Plot::plnr : xxx[0.03,x] is not a machine-size real number at
>x=0.40567576234524343
>
>Plot::plnr : xxx[0.03,x] is not a machine-size real number at
>x=0.84834563246262
>
>and then it stops.
>
>How can I check the function is ok?
>I run mathematica 4.1 on a windows2000 system.
>

Read the on-line help for Plot.

Evaluate the function being plotted.

Plot[Evaluate[f], {x, xmin, xmax}


Bob Hanlon
Chantilly, VA  USA


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