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Re: Mathematica Weirdness

  • To: mathgroup at smc.vnet.net
  • Subject: [mg116711] Re: Mathematica Weirdness
  • From: Sebastian <sebhofer at gmail.com>
  • Date: Fri, 25 Feb 2011 06:32:44 -0500 (EST)
  • References: <ik5f8m$sk3$1@smc.vnet.net>

On Feb 24, 12:26 pm, Daniel Lichtblau <d... at wolfram.com> wrote:

> If instead you numerically evaluate using precision tracking you will
> get a positive result.

I'm curious: why does N[#,MachinePrecisison] evaluate to the wrong
result while N[#,n], where n is any number (also smaller than 16),
evaluates to the correct result?
What is so special about MachinePrecision?

Sebastian


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