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MathGroup Archive 2004

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Re: SetPrecision - What does in find?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48375] Re: SetPrecision - What does in find?
  • From: kazimir04 at yahoo.co.uk (Kazimir)
  • Date: Wed, 26 May 2004 02:41:25 -0400 (EDT)
  • References: <c8kcs0$mpv$1@smc.vnet.net> <c8mumk$a4t$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

> If you compute with infinite precision the sum of the (negative) powers of 2
> corresponding to that expansion, you should get
> 
>     1261007895663739/9007199254740992
> 
> Try this:
<skiped>
> Does it work?

Yes, it does.I did not jnow that 9007199254740992 is a power of 2. It
looks that it is a way that the developpers used.

However, I would not agree that one can say that it is an infinite
precision of 0.14  in usual sens. In fact the error introduced by the
transformation is about MachinePrecision.

Vlad


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