[liblouis-liblouisxml] Re: Bold Capital C
- From: "John J. Boyer" <john.boyer@xxxxxxxxxxxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Thu, 26 Jun 2008 04:55:03 -0500
Neil,
Thanks for your comments. I'll keep them in mind for the future. For now
the bold Nemeth notation seems to be best for this particular case.
There are a few things that have no representation in Nemeth. For
example, there is no way to handle underlined letters.
Thanks,
John
On Wed, Jun 25, 2008 at 03:13:23PM -0700, Neil Soiffer wrote:
> I don't know what the proper thing to do in Nemeth is, but the "double
> struck" characters are distinct from bold. Unicode has a range of bold math
> symbols starting at 1D400. The double struck chars start at 1D538, but have
> holes in them because some of the characters (such as the C) were already in
> Unicode. There was/is debate as to whether it was wise for Unicode to leave
> the holes, but that's a different email thread.
>
> The point of these plane one characters is that they are semantically
> distinct from the regular letters in that you may well mix various font
> variants of a letter in a mathematical text and the reader is suppose to
> understand that they have different meanings. This is great for
> accessibility, but I'm sure Nemeth code covers them all... at least I don't
> see anything appropriate listed in Appendix A of the "green" book, but that
> is a pretty old book. I also don't see how Fraktur symbols are represented
> in Nemeth.
>
> Neil
>
>
> On Wed, Jun 25, 2008 at 1:58 PM, Mike Sivill <mike.sivill@xxxxxxxxxxxx>
> wrote:
>
> > Hi John,
> > I guess you're totally right to use the bold indicator. After reading that
> > article, I understand what the letter actually looks like. Before, I
> > thought
> > it was like a C with a line drawn cross it twice or something. Now that I
> > know it is meant to be bold, that's what it should be. One fallback of the
> > unicode tables is that they sometimes use esoteric naming of characters in
> > attempt at describing the character, instead of their real names.
> > Mike
> >
> > -----Original Message-----
> > From: liblouis-liblouisxml-bounce@xxxxxxxxxxxxx
> > [mailto:liblouis-liblouisxml-bounce@xxxxxxxxxxxxx] On Behalf Of John J.
> > Boyer
> > Sent: Wednesday, June 25, 2008 1:23 PM
> > To: liblouis-liblouisxml@xxxxxxxxxxxxx
> > Subject: [liblouis-liblouisxml] Bold Capital C
> >
> > Here is a private message from Susan Jolly which contains a link to an
> > interesting article. In view of this, it would seem better to use the
> > bold typeform for the double-struck capital C. If I remember right, this
> > would be 456-6-14. Vectors should be represented by small bold letters,
> > for example, 456-136 and 456-1236.
> >
> > John
> >
> > ----- Forwarded message from Susan Jolly <easjolly@xxxxxxxxxxxxx> -----
> >
> > Subject: Double struck letters
> > From: Susan Jolly <easjolly@xxxxxxxxxxxxx>
> > Date: Wed, 25 Jun 2008 10:35:03 -0600
> > To: "'John J. Boyer'" <john.boyer@xxxxxxxxxxxxxxxx>
> >
> > Hi John,
> >
> > I thought you might find this article on the origin of double struck
> > letters
> > interesting.
> > http://en.wikipedia.org/wiki/Blackboard_bold
> >
> > My inclination would be to use the Nemeth bold capital letters rather than
> > the script capital letters to distinguish these symbols.
> >
> > Susan
> >
> >
> >
> > ----- End forwarded message -----
> >
> > --
> > John J. boyer; President, Chief Software Developer
> > JJB Software, Inc.
> > http://www.jjb-software.com
> > Madison, WI USA
> > Developing software for people with disabilities
> >
> > For a description of the software and to download it go to
> > http://www.jjb-software.com
> >
> > For a description of the software and to download it go to
> > http://www.jjb-software.com
> >
--
John J. boyer; President, Chief Software Developer
JJB Software, Inc.
http://www.jjb-software.com
Madison, WI USA
Developing software for people with disabilities
For a description of the software and to download it go to
http://www.jjb-software.com
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