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MathGroup Archive 2007

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Re: Hi presision problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84111] Re: Hi presision problem
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Mon, 10 Dec 2007 20:38:56 -0500 (EST)
  • Organization: The Open University, Milton Keynes, UK
  • References: <fjj1tb$g7s$1@smc.vnet.net>

Art=C5=ABras Acus wrote:

> How to calculate the expression with higher than machine precision?
> Mathematica 6 seems runs into serious problems (gives Inderetrminate)
>
> N[1 - Pi^(-InverseGammaRegularized[1, 0, 1 - 1/Sqrt[E]]) , 20]

Do not use N but SetPrecision as in

SetPrecision[1 - Pi^(-InverseGammaRegularized[1, 0, 1 - 1/Sqrt[E]]), 20]

0.4358104164522437131

Regards,
--
Jean-Marc



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