Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2002
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2002

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Increased Precision in Plot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg34692] Re: [mg34684] Increased Precision in Plot?
  • From: "Johannes Ludsteck" <johannes.ludsteck at wiwi.uni-regensburg.de>
  • Date: Sat, 1 Jun 2002 04:28:54 -0400 (EDT)
  • Organization: Universitaet Regensburg
  • Sender: owner-wri-mathgroup at wolfram.com

Dear Selwyn,
the option PlotDivision->anInteger should solve your problem.
See the Help for PlotDivision or type
?PlotDivision

Best regards,
	Johannes Ludsteck

On 31 May 2002, at 4:30, Selwyn Hollis wrote:

> The command
> 
> f[t_]=Nest[1 - Integrate[2s(#/.t->s),{s, 0, t}]&, Cos[t],
> 12]//Simplify
> 
> returns a fairly innocent-looking result. However, evaluation (or
> plotting) of the result with default precision produces garbage; for
> example:
> 
> In[1]:= f[.5]
> Out[1]:= 0.875
> 
> In[2]:= N[f[1/2]]
> Out[2]:= 0.625
> 
> In[3]:= N[f[1/2],17]
> Out[3]:= 0.77880078307140487
> 
> My question is this: How can I get Plot to graph such a function with
> increased precision, so that the graph isn't overwhelmed by noise?
> 
> Thanks in advance,
> 
> Selwyn Hollis
> 



<><><><><><><><><><><><>
Johannes Ludsteck
Economics Department
University of Regensburg
Universitaetsstrasse 31
93053 Regensburg
Phone +49/0941/943-2741


  • Prev by Date: RE: Re: Function as an argument of the function
  • Next by Date: Re: Increased Precision in Plot?
  • Previous by thread: RE: Increased Precision in Plot?
  • Next by thread: Re: Increased Precision in Plot?