[duxuser] Re: Braille for Natural Join symbol?
- From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
- To: <duxuser@xxxxxxxxxxxxx>
- Date: Fri, 24 Sep 2010 08:54:57 +0100
Hi Sean,
You have raised a very interesting and timely question, since I'm
currently working with MathType 6.7 on other issues.
I believe what you are looking for in print terms is either Unicode
2A1D simply known as "Join", and/or Unicode 22C8 known as "Bowtie".
(And perhaps even Unicode 27D7 known as "Full Outer Join".)
Moreover, while I have quite an extensive range of Unicode Fonts on my
system, I have only been able to locate 22C8 (Bowtie) in the "Arial
Unicode MS" character set.
I've not been able to trace any information as regards how they should
be interpreted in Braille, but have Bcc'd this to one or two people
who may be able to advise.
George.
-----Original Message-----
From: duxuser-bounce@xxxxxxxxxxxxx
[mailto:duxuser-bounce@xxxxxxxxxxxxx] On Behalf Of Sean J Keegan
Sent: 23 September 2010 22:21
To: duxuser@xxxxxxxxxxxxx
Subject: [duxuser] Braille for Natural Join symbol?
Hello all,
We are working on a relational database book for a computer science
student and encountered a symbol that we are unsure of when attempting
to convert to Braille. The symbol is called a "natural join" and
(essentially) looks like a bow tie. It is used in relational algebra
and database design.
Here is a wikipedia entry for the natural join:
http://en.wikipedia.org/wiki/Relational_algebra#Natural_join_.28.E2.8B
.88.29
We have been doing some research to identify the Braille
representation
of the symbol, but have been unsuccessful. Does anyone know what the
appropriate Braille representation is for the natural join?
Thanks and take care,
Sean
--
Sean Keegan, M.S.
Associate Director, Assistive Technology
Office of Accessible Education - Stanford University
http://studentaffairs.stanford.edu/oae
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