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  • Subject: [mg105395] Experimental`$EqualTolerance
  • From: Andrzej Kozlowski <akoz at>
  • Date: Tue, 1 Dec 2009 04:13:25 -0500 (EST)

The functions $EqualTolerance and $SameQToleranceexists in the 
Experimantel context both in Mathematica 5.2 and in later versions. But 
while in 5.2 I get



In 7.01 I get:

In[44]:= Experimental`$EqualTolerance

Out[44]= Experimental`$EqualTolerance

Further more, it seems that although the function name $EqualTolerance 
has been retained in the Experimental context, the function itself no 
longer does anything. Compare:

Mathematica 5.2

Block[{Experimental`$EqualTolerance =16}, 1. == 2.]


Mathematica 7.01

In[58]:= Block[{Experimental`$EqualTolerance = 16}, 1. == 2.]

Out[58]= False

Was keeping Experimental`$EqualTolerance while removing its definition 
in Mathematica 7 just an oversight or does it still serve some purpose? 
And has the functionality been transferred to some other function?

Andrzej Kozlowski

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