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SetPrecision causes logical comparisons to fail in Mathematica 5.1 on Mac OS X?

• To: mathgroup at smc.vnet.net
• Subject: [mg63967] SetPrecision causes logical comparisons to fail in Mathematica 5.1 on Mac OS X?
• From: "jjdmon" <jjdmon at pobox.com>
• Date: Wed, 25 Jan 2006 08:45:55 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

I am running Mathematica 5.1.1.0 on Mac OS 10.3.9 and have encountered
what seems like a bug using SetPrecision to limit the significant
places of real numbers.

If I do this:

In: x=SetPrecision[1.101,2]
Out: 1.1

I get this:

In: x==0.0
Out: True

In: x==1.0
Out: True

Is this expected behavior?

• Follow-Ups:
  • Re: SetPrecision causes logical comparisons to fail in Mathematica 5.1 on Mac OS X?
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
  • Re: SetPrecision causes logical comparisons to fail in Mathematica 5.1 on Mac OS X?
    • From: Pratik Desai <pdesai1@umbc.edu>