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Re: puzzling Octave behaviour

From: Tom Holroyd
Subject: Re: puzzling Octave behaviour
Date: Sat, 22 Jul 2006 20:46:01 -0400 (EDT)

On Sat, 22 Jul 2006, Muthiah Annamalai wrote:

Id probably be bothered about ltmps() & ltest are behaving ok
before pointing fingers elsewhere, and also why you forgot
to post the output of ltmps too.

The real problem is that testing doubles for equality doesn't work very well. It doesn't have anything to do with Octave, it's just a property of the floating point representation that computers use. You need to test to see if the numbers are close, within some tolerance, like (a - b) < 1e-10, instead of a == b.

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