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Re: [Groff] A4 paper size

From: Tadziu Hoffmann
Subject: Re: [Groff] A4 paper size
Date: Wed, 2 May 2001 18:34:29 +0200

> Whilst I agree on the principles behind the paper sizes I think you're
> missing the `rounding' step that ISO did so people can easily recall
> the dimensions, e.g. 210mm x 297mm.
> For more detail see

You're right.  I hadn't realized that rounding is not something
done just at the end to get a ``nice'' value, but done at every
step going from one size to the next.  (And ``nice'' also isn't
what I decided to call nice, but apparently an integer millimeter).

Thus, the ``definite'' size of A4 is indeed 210mm x 297mm,
and the value given in the HOWTO (841890) is the correct one.

(The Adobe values mentioned by Stewart seem to be values rounded
to the nearest (PostScript) point.)

Anyhow, the above web page also states that the tolerance is
+/- 2 mm, which makes my demand for precision a bit pointless


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