Question about Plot function?

• To: mathgroup at christensen.cybernetics.net
• Subject: [mg1227] Question about Plot function?
• From: ptaszyns at uci.agh.edu.pl (Boguslaw Ptaszynski)
• Date: Fri, 26 May 1995 03:19:57 -0400
• Organization: University of Mining & Metallurgy

```Hi, Mathgroup!

I have Ma v.2.2. on PC and I need to visualize a function ff[n,x] with
t- parameter (n- is an integer=1,2,...; x-is a real number with 16 digit
precision).The function ff is a sum of n terms of series.I have already
obtained the plot of ff for n=11,35,85,150. Now,I want to plot ff for
n=220 terms.So, I have written the command:

Plot[ff[220,x] /.t->0.1, {x, 0, 1}, PlotRange->{-1, 1}]

and I have got the following message :

Plot::plnr: CompiledFunction[[x], <<1>>, -CompiledCode-][x]
is not a machine-size real number at x=0..
Plot::plnr: CompiledFunction[[x], <<1>>, -CompiledCode-][x]
is not a machine-size real number at x=0.0416667.
Plot::plnr: CompiledFunction[[x], <<1>>, -CompiledCode-][x]
is not a machine-size real number at x=0.0833333.
General::stop: Further output of Plot::plnr will be suppresed
during this calculation.

I don`t know what does it mean.
Can sameone tell me how to make it correctly?

Thank for the patience,
Many thanks

Boguslaw Ptaszynski

```

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