In article <3e6cc573@news.povray.org> , gimi <gim### [at] psicoch>  wrote:

> this is what both the programmers of povray, and the engineers
> at hp did, and why the results are different, but neither are
> *wrong*!

Yes, because you only look at div and mod as one system.  You have to
consider the use of div without mod.  And then the rounding rules get
arbitrary as a special case just to fit mod, which in nonsense to do.  And
just because engineers at HP didn't know how to produce a logical
implementation doesn't make their implementation right.

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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