Dear Unicode gurus,
As noted on
http://www.ams.org/STIX/glyphs/proposal/newsub/challenge-archive.html
in question 18, Unicode 2.1 confuses and combines as U+2118 the
potentially very different characters
a) SCRIPT CAPITAL P
b) POWER SET
c) WEIERSTRASS ELLIPTIC FUNCTION
My limited exposure to mathematics suggests that while a) and b) might
well be unified (?), c) is certainly something very different with a
descender, and the Unicode 2.0 and UCS:1993 example glyph only matches
meaning c) in contrast to the name of this character.
It seems that the AMS STIX project <http://www.ams.org/STIX/> is already
very busyly working on deconfusing these in the revision of the math
aspects of Unicode.
Was the meaning of U+2118 already somehow clarified in Unicode 3.0?
Shall a Unicode 3.0 font designer prefer to let U+2118 look like a
SCRIPT CAPITAL P (for power sets) or like a WEIERSTRASS ELLIPTIC
FUNCTION symbol?
From the ISO proposal on
http://www.ams.org/STIX/glyphs/proposal/newsub/utc/99195-rev1.htm
I concluded so far that MATH SCRIPT CAPITAL P in plane 1 will not be
excluded by the already available U+2118 SCRIPT CAPITAL P, so am I right
in assuming that U+2118 will continue to be associated with the
Weiserstrass-style glyph found in Unicode 2.0 and UCS:1993?
Markus
-- Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK Email: mkuhn at acm.org, WWW: <http://www.cl.cam.ac.uk/~mgk25/>
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