MathGroup Archive: March 2007 [00006]

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Sort with -Infinity fails

To: mathgroup at smc.vnet.net
Subject: [mg73822] Sort with -Infinity fails
From: Tom Aldenberg <Tom.Aldenberg at rivm.nl>
Date: Thu, 1 Mar 2007 06:17:13 -0500 (EST)

Dear MathGroup,

Minus Infinity (-Infinity) is smaller than -8, but Sort does not sort it as
expected.
Is there a Real minus Infinity?


In[75]:=
      -Infinity < -8
Out[75]=
      True

In[76]:=
      Sort[{-Infinity, -8, 5}]
Out[76]=
      {-8, 5, -$B!g(B}


Regards,

Tom Aldenberg

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