[BlindMath] Electronics Code

Wed Mar 29 00:50:52 UTC 2017

John and Lisa,

The current definition of how to write greek letters in UEB is in the UEB
rule book, I believe in Appendix 3.  My understanding is that there are some
references there to usage as well.  If the other symbols are just letters in
a particular font, I would lean in John's direction and just use the
letters.  In UEB, there are ways to give some type face information, but
this seems more likely to be confusing than helpful.  The question, though,
is that if you are having to reproduce formulas. You will have to decide if
they should be represented in UEB math, Nemeth code, or whether you should
just write the formulas in words.  This depends on a number of factors
including which code is used by the student and how detailed the text is
getting into the mathematics of it all.  I should note that while this
decision is more complicated now, it has always been the case that a
decision had to be made as to whether to write a formula out in words or in
a mathematical code when the text is primarily literary, so this dilema
isn't entirely new.

Best regards,

Steve Jacobson

-----Original Message-----
From: BlindMath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of John
Gardner via BlindMath
Sent: Tuesday, March 28, 2017 6:37 PM
To: 'Blind Math list for those interested in mathematics'
<blindmath at nfbnet.org>
Cc: John Gardner <gardnerj at oregonstate.edu>; 'Rasmussen, Lloyd'
<lras at loc.gov>
Subject: Re: [BlindMath] Electronics Code

It will be interesting to hear opinions of others on this list, but my
recommendation would be to use regular V and I for voltage, current
respectively and R for a resistor. The special fonts apparently used in your
book convey no special information. Regular fonts are frequently used in
physics texts. And authors differ on using upper vs lower case. There is no
fast and firm rule as far as I know.

Resistance units are ohms and are symbolically represented by an upper case
greek omega.

Does this help?

John

-----Original Message-----
From: BlindMath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Lisa
Bovard via BlindMath
Sent: Tuesday, March 28, 2017 6:19 AM
To: Blind Math list for those interested in mathematics
<blindmath at nfbnet.org>
Cc: Lisa Bovard <lisa.bovard at rccc.edu>; Rasmussen, Lloyd <lras at loc.gov>
Subject: Re: [BlindMath] Electronics Code

OK.  I am working on converting an Electronics textbook and it uses the
stylized "V", "E", "I" for the symbols for volt, amp, etc.  This particular
chart lists the quantity, symbol (stylized letter), unit of measurement and
the unit abbreviation (standard print letter and the Greek omega).  Trying
to figure out how to convey the difference in the print symbols in braille.

________________________________
From: BlindMath <blindmath-bounces at nfbnet.org> on behalf of Rasmussen, Lloyd
via BlindMath <blindmath at nfbnet.org>
Sent: Monday, March 27, 2017 4:11:06 PM
To: 'Blind Math list for those interested in mathematics'
Cc: Rasmussen, Lloyd
Subject: Re: [BlindMath] Electronics Code

There is no special braille code for electronics symbols. The math is done
in whichever code the student uses or wants to learn. Schematic diagrams
usually have letter-number combinations representing the components, and a
parts list that spells out more particulars of these components. Blind
people who work in this field have wished for, and not always gotten, a
verbal description of a schematic diagram, described with some understanding
of the functioning of the circuit so that the description is complete and
covers the connections in a logical manner. It is a good idea to learn what
the schematic symbols look like when represented tactually, but diagrams
quickly become too complicated to reproduce as raised drawings.

Lloyd Rasmussen, Senior Staff Engineer
National Library Service for the Blind and Physically Handicapped, Library
of Congress
Washington, DC 20542   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: BlindMath [mailto:blindmath-bounces at nfbnet.org] On Behalf Of Lisa
Bovard via BlindMath
Sent: Monday, March 27, 2017 3:21 PM
To: Blind Math list for those interested in mathematics
Cc: Lisa Bovard
Subject: [BlindMath] Electronics Code

Anyone know where I would find the braille code for electronics symbols?

Lisa D Bovard

Disability Services Technician

Rowan-Cabarrus Community College

704-216-3615 (North Campus)

704-216-7254 (South Campus)

lisa.bovard at rccc.edu

E-mail correspondence to and from this address may be subject to the North
Carolina Public Records Law and may be disclosed to third parties by an
authorized state official. (NCGS.Ch.132)
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