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MathGroup Archive 2006

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1`2 == 1*^-10

  • To: mathgroup at smc.vnet.net
  • Subject: [mg71621] 1`2 == 1*^-10
  • From: "dimitris" <dimmechan at yahoo.com>
  • Date: Sat, 25 Nov 2006 05:37:00 -0500 (EST)

Dear Andrew,

FrontEndExecute[{HelpBrowserLookup["RefGuide","Equal"]}]

I copy from there

"Approximate numbers are considered equal if they differ in at most
their last eight binary digits (roughly their last two decimal digits).
2 == 2. gives True ".
 
Use SameQ
 
{3. == 3, 3. === 3}
{True, False}
 
Regards
Dimitris


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