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Re: parallel lines and arc of circle

From: David Carlisle <davidc@nag.co.uk>
Date: Fri, 6 Feb 2004 13:47:25 GMT
Message-Id: <200402061347.NAA12295@penguin.nag.co.uk>
To: Stephan.Semirat@ac-grenoble.fr
Cc: www-math@w3.org


> How do i code the symbol // 

Unicode apparently only has
2225  PARELLEL to
which is normally represented by vertical lines ||

Strangely it does have

29E3 EQUALS SIGN AND SLANTED PARALLEL
and
29E4 EQUALS SIGN AND SLANTED PARALLEL WITH TILDE ABOVE

but it doesn't have a SLANTED PARALLEL

> (at the moment i use &sol;&sol;

which is the same as using // as &sol is just character 47 ie /


> but i don't think it is the right way, is it ?).

I suspect it is the best you can do, in the absence of a specific
unicode character for this.

> 2) How to denote the arc of a circle ?

well I think the correct answer is
2312 ARC
but I just tried IE and Mozilla and they both rendered that with a
missing glyph mark (which isn't incorrect if the glyph isn't on the
fonts being used, but isn't what you want, probably)

mozilla and IE/MathPlayer both render
2322 FROWN
as an arc above the AB but it may be a bit flat and is not centered (by
either system) Or rather, I suspect it is centered on the width of the
characters at the baseline but looks off center due to the italic slope
of the letters, however this is usable, I think.

David

-- 
http://www.dcarlisle.demon.co.uk/matthew

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Received on Friday, 6 February 2004 08:47:51 UTC

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