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MathGroup Archive 2005

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Re: Types in Mathematica thread

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62839] Re: Types in Mathematica thread
  • From: Bill Rowe <readnewsciv at earthlink.net>
  • Date: Tue, 6 Dec 2005 00:43:08 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

On 12/5/05 at 1:40 PM, akoz at mimuw.edu.pl (Andrzej Kozlowski) wrote:

>On 5 Dec 2005, at 17:37, Kristen W Carlson wrote:

>>I can't think of why there is no RealQ predicate, but there is
>>_Real, a pattern test via the head.

>Maybe because it is called InexactNumberQ.

That clearly would not be the equivalent of RealQ since InexactNumberQ[Pi] correctly returns False when RealQ[Pi] would return True if it existed.
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