Re: [boost] Boost Test Library: general floating point comparisons

From: Dave Steffen (dgsteffen_at_[hidden])
Date: 2007-02-14 12:04:44

Glenn Schrader writes:

 > Comparing matrices and vectors is a topic that I have had to deal
 > with.

 Yeah - big issue for us too.

 > An important issue here is that there are different ways of
 > comparing that are appropriate for different cases. It really
 > depends on the computation that produced the vector or matrix.

 Yup.
 [ ... examples of different ways to compare matrices snipped ... ]
 And yup to all of those.

 Even worse, we occasionally have even more interesting mathematical
 beasties --- "states" (e.g. vector + covariance matrix) and
 probability distributions --- to compare.

 What I'm poking at right now is a generic way to 

      A) teach mathematical objects how to compare themselves in
      various ways

 and

      B) have that work smoothly with the Boost Test stuff.

 I don't have a good solution yet... but gimme another day or two. :-)

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Dave Steffen, Ph.D.                Disobey this command!
Software Engineer IV                 - Douglas Hofstadter
Numerica Corporation
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