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Topic: A further response to posting on Calculator Use
Replies: 48   Last Post: Sep 20, 2013 7:19 AM

 Messages: [ Previous | Next ]
 Wayne Bishop Posts: 5,465 Registered: 12/6/04
Re: A further response to posting on Calculator Use
Posted: Sep 2, 2013 9:10 PM

At 09:53 AM 9/2/2013, kirby urner wrote:

>I studied Linear Programming at the Danzig Simplex Algorithm as well.

"At the" as in "at the altar of" is a nice way of putting it. My
next program was compass and straightedge construction of the regular
F(sub n)-gon for F(sub n) prime. Especially given the computer
time/memory/cost limitations of the era, the lack of inherent
recursion in FORTRAN was really frustrating.

>Coding an algorithm oneself is a way to help it sink in.

I haven't had anything to do with our numerical analysis classes for
a long time so I don't know if it still the case or not but, last
time I did, we required at least one project in anybody's favorite
language for exactly that reason.

>Having a crummy language, though, can get in the way.

Dyoo tell.

>Wayne's early edition Linear Algebra text (which I got a copy of)
>has lots of code in the back for doing linear algebra. The language
>(BASIC I think) is not taught in the regular text and in the back
>it's somewhat dense and uncommented. You're just supposed to type
>it in and cross your fingers you didn't make too many typos.

Not the earliest, thanks for remembering, nor the latest. Not only
carefully. So-called "rational numbers" as ordinary fractions are
phony. They use early BASIC's idea of real arithmetic and just look
for a close fraction. If they can't find one, they revert to
"real". As with the Simplex Algorithm, I wanted something to teach
the book. Including (especially!) row reduction of matrices that are
not square and/or determinant of 0; not then easily available for
free in order to completely solve systems of linear equations that
have multiple solutions or no solution.

>But again, technology has moved on, and therefore pedagogy (potentially).

For some things, certainly. But mathematics remains mathematics and
compromising it to genuflect to "technology" is not an appropriate

Wayne

Date Subject Author
8/31/13 Jerry P. Becker
8/31/13 Robert Hansen
9/1/13 kirby urner
9/1/13 Robert Hansen
9/1/13 kirby urner
9/1/13 Robert Hansen
9/1/13 Wayne Bishop
9/2/13 kirby urner
9/2/13 Louis Talman
9/2/13 Robert Hansen
9/2/13 Wayne Bishop
9/2/13 Robert Hansen
9/2/13 Greg Goodknight
9/2/13 Wayne Bishop
9/3/13 Louis Talman
9/3/13 Greg Goodknight
9/3/13 Louis Talman
9/3/13 Greg Goodknight
9/3/13 Louis Talman
9/4/13 Greg Goodknight
9/4/13 Louis Talman
9/4/13 Greg Goodknight
9/3/13 Wayne Bishop
9/2/13 Wayne Bishop
9/2/13 kirby urner
9/3/13 Wayne Bishop
9/1/13 Richard Strausz
9/1/13 Robert Hansen
9/1/13 Richard Strausz
9/1/13 Robert Hansen
9/1/13 GS Chandy
9/2/13 Richard Strausz
9/2/13 Robert Hansen
9/3/13 Richard Strausz
9/3/13 Robert Hansen
9/3/13 GS Chandy
9/3/13 GS Chandy
9/3/13 Wayne Bishop
9/4/13 Robert Hansen
9/3/13 GS Chandy
9/4/13 GS Chandy
9/4/13 GS Chandy
9/4/13 Wayne Bishop
9/5/13 GS Chandy
9/5/13 kirby urner
9/6/13 GS Chandy
9/6/13 kirby urner
9/19/13 kirby urner
9/20/13 GS Chandy