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From: Robert A Duff <bobduff@world.std.com>
Subject: Re: What is a class in Ada ?
Date: 2000/02/14
Message-ID: <wcc66vregca.fsf@world.std.com>#1/1
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Sender: bobduff@world.std.com (Robert A Duff)
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Date: 2000-02-14T00:00:00+00:00
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Martin Dowie <martin@dowie-cs.demon.co.uk> writes:

> i only know "orthogonal" as meaning 'right-angled' - what do you mean by it in this
> context?

Think of each "feature" as a dimension in a multidimensional cartesian
coordinate system.  If features are orthogonal, they can be combined in
the same sense that the X, Y, Z... coordinates can be defined to define
a point.

- Bob