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From: kim@helios.enea.se (Kim Wald`n)
Newsgroups: comp.object
Subject: Re: complex number example
Message-ID: <KIM.90Feb2203827@helios.enea.se>
Date: 2 Feb 90 19:38:27 GMT
References: <2904@tukki.jyu.fi>
Sender: kim@enea.se
Organization: Enea Data AB, Sweden
Lines: 15
In-reply-to: sakkinen@tukki.jyu.fi's message of 1 Feb 90 13:01:30 GMT

In article <2904@tukki.jyu.fi> sakkinen@tukki.jyu.fi (Markku Sakkinen) writes:

>   I have read in some book or article an example in which a Complex object
>   (implementing complex numbers) contained both the Cartesian
>   and the polar representation and a validity indicator for each:
>   at every moment, at least one representation must be valid,
>   and even both can be. If memory serves, it was a well-done example.
>   The only problem is that I don't remember where it was.

You probably refer to the example in Bertrand Meyers "Object-Oriented
Software Construction", pp. 136-139.

-- Kim Walden
Enea Data, Sweden
kim@enea.se