[duxuser] Re: Sigma
- From: "George Bell" <george@xxxxxxxxxxxxxxxxxxx>
- To: <duxuser@xxxxxxxxxxxxx>
- Date: Wed, 7 Apr 2004 09:29:11 +0100
Hi Ben,
The following is what I got back from my U.K. Braille Maths expert.
"Makes total sense to me - I was right, it needs the subscript sign
after the sigma so should be:
456 (Greek capital) s ch (subscript) 56 (letter sign) r er (back to
main line) r ing (power) 23 (means numeral 1 in this context) "
As regards your Braillo question, I would suggest you contact Braillo in
Norway, where you are sure to get a definitive answer relating to the
specific machine you have installed there.
From past experience, I have found there are occasionally very subtle
differences between models, even of the same type.
George Bell
Techno-Vision Systems Ltd
________________________________
From: duxuser-bounce@xxxxxxxxxxxxx
[mailto:duxuser-bounce@xxxxxxxxxxxxx] On Behalf Of Ben Ong
Sent: 07 April 2004 02:05
To: duxuser@xxxxxxxxxxxxx
Subject: [duxuser] Re: Sigma
Hi,
It is a Maths Chapter which we are transcribing for a college
student.
*** Quotation begins:
CHAPTER 6 SUMMATION
Sigma Notation
It is useful to have a short way of writing expressions like
1"power 2" + 2"power 2" + ... + n"power 2". This is done by writing
"sigma"r"power 2" which means "the sum of squares of positive integers."
*** End of quote.
Hence my guess of dots "456 234 (sigma) 56 1235 (letter sign
r)". If I am correct with the dot representation, how do I achieve this
with DBT?
I am also re-posting my other question on setting the embosser
to work with A4-size sheets.
We have a Braillo-200 embosser and DBT Version 10.3. The
embosser is set to work on 40 characters per line and 25 lines per page.
If we need to emboss on A4-size paper which can hold up to 28
characters per line and 26 lines per sheet, can someone please step me
through the process, from preparation of data to embosser set-up, in
order to achieve this outcome?
Regards,
At 12:19 PM 4/6/2004 -0400, you wrote:
>>>>
Ben Ong, Could you be more specific about Sigma R? What
is the context? Fraternity, physics formula, simple sentence explaining
greek letters? Are you typing in English?
<mailto:george@xxxxxxxxxxxxxxxxxxx>george@xxxxxxxxxxxxxxxxxxx wrote:
Hi Ben, If I'm not mistaken, you use the British
Braille Maths Code. So, I consulted one of the small handful of experts
here in the U.K. The response is as follows. "Sigma - I assume he is
trying to write Greek capital sigma (sum of) followed by a lower limit
sign in which case you need 16 (ch) to indicate that the r is the lower
limit then 56 (letter sign) then r although I can't quite see what it
means mathematically out of context. Capital sigma is ALWAYS either
alone or has limits (lower alone or upper and lower). The lower limit
needs to be shown as 16, I think." Hope this helps, George Bell.
________________________________ From:
<mailto:duxuser-bounce@xxxxxxxxxxxxx>duxuser-bounce@xxxxxxxxxxxxx
[<mailto:duxuser-bounce@xxxxxxxxxxxxx>mailto:duxuser-bounce@xxxxxxxxxxxx
g] On Behalf Of Ben Ong Sent: 06 April 2004 02:32 To:
<mailto:duxuser@xxxxxxxxxxxxx>duxuser@xxxxxxxxxxxxx Subject: [duxuser]
Sigma Hi, With DBT, how do I achieve a "sigma-r" (sigma symbol and the
letter r beside it) and what should the braille representation be? My
guess is dots 456 234 (sigma) and 56 1235 (letter symbol and r). Thanks.
Ben Ong Braille Production Unit Singapore Association of the Visually
Handicapped 47 Toa Payoh Rise Singapore 298104 Tel: +65 6251-4331 (ext.
171) Fax: +65 6253-7191 URL:
<<http://www.savh.org.sg>http://www.savh.org.sg *** To Help The Visually
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----------------
face="Arial" color="#0000ff" size="2">Hi Ben,
face="Arial" color="#0000ff" size="2">If I'm not mistaken, you use the
British Braille Maths Code. So, I consulted one of the small handful of
experts here in the U.K. The response is as follows. face="Arial"
color="blue" size="2"> style="font-size: 10pt; color: blue;">"Sigma I
assume he is trying to write Greek capital sigma (sum of) followed by a
lower limit sign in which case you need 16 (ch) to indicate that the r
is the lower limit then 56 (letter sign) then r although I cant quite
see what it means mathematically out of context.
face="Arial">Capital sigma is ALWAYS either
alone or has limits (lower alone or upper and lower). The lower limit
needs to be shown as 16, I think."
face="Arial">Hope this helps,
face="Arial">George Bell.
style="border-left: 2px solid rgb(0, 0, 255);
padding-left: 5px; margin-left: 5px; margin-right: 0px;"> align="left">
----------------
From:
<mailto:duxuser-bounce@xxxxxxxxxxxxx>duxuser-bounce@xxxxxxxxxxxxx
[<mailto:duxuser-bounce@xxxxxxxxxxxxx>mailto:duxuser-bounce@xxxxxxxxxxxx
g] On Behalf Of Ben Ong
Sent: 06 April 2004 02:32
To:
<mailto:duxuser@xxxxxxxxxxxxx>duxuser@xxxxxxxxxxxxx
Subject: [duxuser] Sigma
Hi,
With DBT, how do I achieve a "sigma-r" (sigma
symbol and the letter r beside it) and what should the braille
representation be?
My guess is dots 456 234 (sigma) and 56 1235
(letter symbol and r).
Thanks.
Ben Ong Braille Production Unit Singapore
Association of the Visually Handicapped 47 Toa Payoh Rise Singapore
298104
Tel: +65 6251-4331 (ext. 171) Fax: +65 6253-7191
URL: <<http://www.savh.org.sg>http://www.savh.org.sg
*** To Help The Visually Handicapped Help
Themselves ***
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delete the mail and any attachments from your system. Unless it relates
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Ben Ong
Braille Production Unit
Singapore Association of the Visually Handicapped
47 Toa Payoh Rise
Singapore 298104
Tel: +65 6251-4331 (ext. 171)
Fax: +65 6253-7191
URL: <http://www.savh.org.sg
*** To Help The Visually Handicapped Help Themselves ***
DISCLAIMER: The information contained in this email and any
attachments is intended only for the use of the individual or entity to
whom it is addressed and others authorised to receive it. It may contain
confidential or legally privileged information. If you are not the
intended recipient, you are hereby notified that any disclosure,
copying, distribution or taking any action in reliance on the contents
of this information is strictly prohibited. If you have received this
message in error, please notify the sender immediately and delete the
mail and any attachments from your system. Unless it relates to the
official business of the SAVH, any opinions, views and other information
expressed in this document are those of the individual sender.
* * * * This message is via list duxuser at freelists.org. * To
unsubscribe, send a blank message with * unsubscribe * as the subject to
. You may also * subscribe, unsubscribe, and set vacation mode and other
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http://www.duxburysystems.com * * *
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