[duxuser] Re: nemeth question - subtracting negative numbers
- From: "Davey Hulse" <davey@xxxxxxxxxxxxxxx>
- To: <duxuser@xxxxxxxxxxxxx>
- Date: Wed, 5 Dec 2007 11:56:24 -0800
the Nemeth rules are finicky about how that double minus may be written and how
then it should be written in Braille.
Look carefully at the font of the second minus sign. Is it in any way
superscripted? More and more frequently negative numbers are showing up with
that minus sign being in superscript. In that case, the negative sign needs to
be supered. So, in Braille, the expression would be:
7-~-"1
with the tilde representing the superscript mark and the quote representing the
baseline marker necessary to indicate that the superscript applied only to the
minus sign.
Davey Hulse, CEO
Braille Plus, Inc.
P.O. Box 3686
2659 Commercial Street Southeast
Suite 264
Salem, Oregon 97302
Toll-free: (866) 264-2345
Phone: (503) 391-5335
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----- Original Message -----
From: Anthony Tibbs
To: duxuser@xxxxxxxxxxxxx
Sent: Wednesday, December 05, 2007 11:45 AM
Subject: [duxuser] Re: nemeth question - subtracting negative numbers
Hi Katie,
The person who indicated that you use only one subtraction symbol mustn't
have realized that doing that would change the nature of the question.
Mathetmatically speaking,
7 - -1 = ?
is the same as
7 + 1 = ?
You cannot "drop" one of the subtraction symbols, because it would change the
nature of the question. Instead, you would probably be best to Braille it as
7 - (-1) = ?
... keeping both negative signs but putting the negative one in brackets.
This is coming from someone who used Nemeth throughout high school and
first-year university courses, but who has no official 'transcribers' training
or anything of the sort. I do know, however, that you can't just "drop" a
negative sign in the Braille and retain the same meaning!
Take care,
Anthony
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