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MathGroup Archive 2007

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Re: IsExact

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80565] Re: IsExact
  • From: Bhuvanesh <BhuvaneshBhatt at gmail.com>
  • Date: Sun, 26 Aug 2007 03:05:20 -0400 (EDT)

Well, IsExact can't return False for c6 since c6==={x}. But if that's ok then you could use this:

IsExact[expr_] := Precision[expr]===Infinity

This assumes, though, that you don't use "variables" such as x[1.]

Bhuvanesh,
Wolfram Research


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