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MathGroup Archive 2005

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Re: Numerical accuracy of Hypergeometric2F1

  • To: mathgroup at smc.vnet.net
  • Subject: [mg55743] Re: Numerical accuracy of Hypergeometric2F1
  • From: "janos" <jtoth at helka.iif.hu>
  • Date: Tue, 5 Apr 2005 03:21:13 -0400 (EDT)
  • References: <d2qj7t$p0o$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

I wanted to calculate Integrate[x^100/(x+2),{x,0,2}] and even the sign
of the result is just negatvie. The reason is the same as above: Mathematica 
calculates the integral symbolically, using a hypergeometric function,
then (s)he is unable to numerically evaluate it.
I got the good result if I used NIntegrate.
Janos Toth
Dept Math Anal
Budapest Univ Technol Ecol.


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