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Re: Prime

From: Andreas Nolda <andreas.nolda@rz.hu-berlin.de>
Date: Wed, 20 Nov 2002 10:17:29 +0100
Message-ID: <m3u1iciora.wl@ling224.german.hu-berlin.de>
To: Robert Miner <RobertM@dessci.com>
Cc: www-math@w3.org

> > (1)     <math>
> >           <msup>
> >             <mi>X</mi>
> >             <mo>&#x2032;</mo>
> >           </msup>
> >         </math>

> (1) is the correct way to markup up x'.  The Math WG has taken up this
> question several times, and always agreed that the superscript
> notation better captures the structure, and it the preferred markup.

> > However, the glyph corresponding to &#x2032; in standard Unicode fonts
> > (for instance, the X11's Misc-Fixed fonts or Microsoft's Arial) is
> > analogous in height to &#x27;, the ASCII apostrophe. 
> 
> Yes, this is true, and the Unicode description of the character states
> explicitly that this is the raised, shrunken, accent version of the
> character.  Of course this is at odds with TeX and (as indicated
> above) MathML usage, which is a real drag.

But then, it appears to me that (1') would be more appropriate than
(1):

(1')    <math>
          <msup>
            <mi>X</mi>
            <mo>&texPrime;</mo>
          </msup>
        </math>

where &texPrime; is the non-raised, non-shrunken prime symbol (TeX's
\prime). Unfortunately, as far as I see, Unicode does not include
it ...

Andreas Nolda
-- 
Andreas Nolda                    e-mail: andreas.nolda@rz.hu-berlin.de
Wissenschaftlicher Mitarbeiter          www: http://www2.hu-berlin.de/
                                            linguistik/institut/nolda/
Humboldt-Universität zu Berlin
Philosophische Fakultät II
Institut für deutsche Sprache und Linguistik
Unter den Linden 6                            phone: ++49-30-2093-9718
D-10099 Berlin                                  fax: ++49-30-2093-9729
Received on Wednesday, 20 November 2002 04:18:27 GMT

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