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Re: What is "f'(x)" as MathML?

From: David Carlisle <davidc@nag.co.uk>
Date: Fri, 21 Jan 2011 17:13:54 +0000
Message-ID: <4D39BED2.8010102@nag.co.uk>
To: "J.Fine" <j.fine@open.ac.uk>
Cc: 'Robert Miner' <robertm@dessci.com>, Daniel Marquès Solé <dani@wiris.com>, "www-math@w3.org" <www-math@w3.org>
On 21/01/2011 16:47, J.Fine wrote:
> (Unicode 3.2 lacks a dot-less j and a non-superscript prime)".

ah but we got a dotless j into unicode (4.1) two of them in fact:

0237;LATIN SMALL LETTER DOTLESS J;Ll;0;L;;;;;N;;;;;
1D6A5;MATHEMATICAL ITALIC SMALL DOTLESS J;Ll;0;L;<font> 0237;;;;N;;;;;

It's not clear if a new prime symbol would really help much because (as 
with having a separate minus sign separate from - users will use the 
ascii one anyway so rendering systems need to cope with the existing 
prime as well as any new one.

<mo>-</mo> should render like <mo>&#x2212;</mo> a minus sign but
<mtext>foo-bar</mtext> should render as a hyphen.

if renderers can do this they can (probably) make the similar adjustment 
to detect when U+2032 is used in a script position and do the right thing.

Note an important consideration to getting dotless j in was being able 
to show published works that used both unaccented dotless j and normal j 
within the same document.

It is probably hard to find any uses of a non superscripted prime.

David



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Received on Friday, 21 January 2011 17:14:23 GMT

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