[Nfb-science] Matrix Computations in Linear Algebra

Sun Sep 5 11:46:22 UTC 2010

Yes I agree. With all math the person must know how to do it first with out
computers. 

-----Original Message-----
From: nfb-science-bounces at nfbnet.org [mailto:nfb-science-bounces at nfbnet.org]
On Behalf Of Mike Freeman
Sent: Saturday, September 04, 2010 11:55 AM
To: NFB Science and Engineering Division List
Subject: Re: [Nfb-science] Matrix Computations in Linear Algebra

IMO all this misses the point -- that being that the student must learn how 
matrix computations are done himself/herself. I'd take away computers 
completely from even the sighted and make them do the work by hand!

Mike

----- Original Message ----- 
From: "David Hertweck" <david.hertweck at sbcglobal.net>
To: "'NFB Science and Engineering Division List'" <nfb-science at nfbnet.org>
Sent: Saturday, September 04, 2010 4:18 AM
Subject: Re: [Nfb-science] Matrix Computations in Linear Algebra

> Another way of doing this is using the functionality of python, a
> interpreted language that is very accessible with JAWS and is free.
> There are modules that can do almost any math function.
>
>
>
> -----Original Message-----
> From: nfb-science-bounces at nfbnet.org 
> [mailto:nfb-science-bounces at nfbnet.org]
> On Behalf Of John Miller
> Sent: Friday, September 03, 2010 10:56 AM
> To: NFB Science and Engineering Division List
> Subject: Re: [Nfb-science] Matrix Computations in Linear Algebra
>
> Hello,
> I also recommend Mike's solution.
> I recommend taking computer software course as early as possible in your
> training or just pick up some on your own.
> Early in my college training, I wrote software to make latex more readable
> in something meeting most rules of the nemeth braille code.
> In 2 hours I can write a program to perform any calculation that Excel can
> do.
> Nethanael Wales knows excel quite well.
> I would like to be more familiar with creating formulas in excel, but for
> now I do that when I have to with a sighted assistant.
> My software utilities authored by me create tabular data in the csv format
> that import directly in excel.
> Many engineering organizations use this approach, so it is a common
> practice.
> Very best,
> John
>
>
> -----Original Message-----
> From: nfb-science-bounces at nfbnet.org 
> [mailto:nfb-science-bounces at nfbnet.org]
> On Behalf Of Mike Freeman
> Sent: Wednesday, September 01, 2010 8:56 PM
> To: NFB Science and Engineering Division List
> Subject: Re: [Nfb-science] Matrix Computations in Linear Algebra
>
> Chelsea:
>
> I realize this sounds old-fashioned but I took linear algebra all the way 
> up
> thru complex analysis and the way I'd advise handling the matrices is to
> forget Excel and transcribe the calculations into braille using a Perkins
> Brailler and, while reading the braille, do the matrix multiplication in
> your head, writing down results as you go.
>
> Mike
>
> ----- Original Message -----
> From: "Chelsea Cook" <astrochem119 at gmail.com>
> To: <Nfb-science at nfbnet.org>
> Sent: Wednesday, September 01, 2010 8:39 PM
> Subject: [Nfb-science] Matrix Computations in Linear Algebra
>
>
>> Hello,
>>
>> Sorry I haven't written for a while; I've been getting adjusted to
>> college. I have a small problem that I would like to have solved
>> relatively quickly. I'm taking a basic linear algebra course this
>> semester and we have started matrix operations for solving systems of
>> linear equations. Although I am an avid Braille reader, I am not where
>> I need to be on the slate and stylus, and am generally trying to
>> wrestle with Excel 2010 to help me with the calculations. (Any tips
>> here would help, i.e multiplying a row by a constant and then adding
>> it to another row in one step). I know this has been done before: any
>> suggestions would be apreciated. I know the basics of Latex, but the
>> way it handles matrices is unclear.
>>
>> Thanks so much,
>> Chelsea
>>
>> -- 
>> Chelsea Cook
>>
>> Virginia Tech 2015; Physics Major
>> cook2010 at vt.edu
>> "I ask you to look both ways.  For the road to a knowledge of the
>> stars leads through the atom; and important knowledge of the atom has
>> been reached through
>> the stars."
>> Sir Arthur Eddington, British astrophysicist (1882-1944), Stars and
>> Atoms (1928), Lecture 1
>>
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