[duxuser] Re: Braille for Natural Join symbol?
- From: "Rasmussen, Lloyd" <lras@xxxxxxx>
- To: "'duxuser@xxxxxxxxxxxxx'" <duxuser@xxxxxxxxxxxxx>
- Date: Fri, 24 Sep 2010 08:37:30 -0400
Your student will probably not know the Nemeth symbol for a natural join
anyway. If you don't get a more definitive answer, you might need to invent a
symbol and provide a transcriber's note defining the symbol. People do
transcriber's notes and special symbols pages all the time.
In my personal opinion, a lot less should be put on special symbols pages,
assuming that the reader knows a little more about the codes in question. But
I don't write the rules.
Lloyd Rasmussen, Senior Project Engineer
National Library Service for the Blind and Physically Handicapped
Library of Congress 202-707-0535
http://www.loc.gov/nls
The preceding opinions are my own and do not necessarily reflect those of the
Library of Congress, NLS.
-----Original Message-----
From: duxuser-bounce@xxxxxxxxxxxxx [mailto:duxuser-bounce@xxxxxxxxxxxxx] On
Behalf Of Sean J Keegan
Sent: Thursday, September 23, 2010 5:21 PM
To: Rasmussen, Lloyd; 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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