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MathGroup Archive 2005

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Re: Mathematica is not very clever

  • To: mathgroup at smc.vnet.net
  • Subject: [mg53517] Re: Mathematica is not very clever
  • From: Bill Rowe <readnewsciv at earthlink.net>
  • Date: Sat, 15 Jan 2005 01:44:20 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

On 1/13/05 at 3:12 AM, astanoff at yahoo.fr (Astanoff) wrote:

>I wonder why mathematica doesn't provide an engine (like Plouffe's
>inverter) to convert a floating-point value into an exact value...

It does. The function to do this is Rationalize. For example,

Rationalize[0.0376]

47/1250
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