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Re: min / max and empty intervals

On 6/7/2011 7:07 AM, Arnold Neumaier wrote:

Dan Zuras Intervals wrote:

Date: Tue, 07 Jun 2011 08:43:03 +0200
From: Arnold Neumaier <Arnold.Neumaier@xxxxxxxxxxxx>
To: Dan Zuras Intervals <intervals08@xxxxxxxxxxxxxx>
CC: John Pryce <j.d.pryce@xxxxxxxxxxxx>, stds-1788@xxxxxxxxxxxxxxxxx
Subject: Re: min / max and empty intervals

Dan Zuras Intervals wrote:



Actually, John touched on the reasonable application for
NaNs in a matrix. That of as yet unknown data.


Unknown values represented in interval analysios by Entire, not by Empty!


I personally agree with Arnold on this point.  It is tied to the basic
philosophy underlying interval analysis.

Baker