[Nfb-science] Matrix Computations in Linear Algebra

[Mike Freeman]

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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