Probable Next
meeting:
6:30PM Friday, May 22, 2009 in ST256
ST is the Charlene Nunley, Student Service Center, 7625 Fenton Street
Old humans, at the moment only old men, but we are not adverse to old
women joining us: Alan Bromborsky, Michael Brabanski, Jack Gaffey,
Walter Faust, and Harold Williams (host) and now joined by Wayne
Warren. The core group are all NCA, National Capital
Astronomers, members, but this is not about astronomy. The core
group could be described vocationally as engineers, mathematicians, and
physicist. They are all interested in the way the universe works
and how it might be modeled mathematically.
Younger humans, Montgomery College students who have attended some of
these meetings: Alpha Bada, Ian McIntire,
Lorena
Aries, Georgio Mori-Block, Ahadu Tilahun, Daman Camara, Leah Gold,
Tony Johnson, Chris Leeney, and
Cassidy Farrel.
A group of files on Geometric
Algebra collected by Alan Bromborsky most written by others, but
some written by Alan is here. Our study guide for now is the
latest introGA4-24-2009.pdf file,
which is titled "An introduction to Geometric Algebra and Calculus" by
Alan Bromborsky. Another file written by Alan Bromborsky with
just the Geometric Algebra part with out the Calculus part is at file and is titled "An Introduction to Geometric
Algebra." It is very similar to the first part of the previous
document but it does have one diagarm that is some what different on
page 23 and may help some people understand the geometry in the
Euclidean case.
We have been applying Geomatric Algebra to solve some problems, we used
the document GAexamples.pdf.
A file in the GA-SIG directory is GA&GC.pdf
and its title is "A Survey of Geometric Algebra and Geometric Calculus"
by Alan Macdonald of Luther College, Decorah, Iowa so you can see these
idea have even spread to Iowa. So it is time we caught up with
the dark side of the moon, if they know it in Iowa, where the corn
grows, then Arkansaw and Mississippi, where the cotton grows, can not
be far behind! What is it that we grow in Maryland besides
brilliant students? This document is only 26 pages long with
another 4 pages of web links and other references. It also says
on the first page:
“The principal argument for the
adoption of geometric algebra is that it provides
a single, simple mathematical framework which eliminates the plethora
of diverse
mathematical descriptions and techniques it would otherwise be
necessary to learn.”
[9] McRobie, F. A. and J. Lasenby (1999). Simo-Vu Quoc Rods using
Clifford Algebra,
Int. J. Numer. Meth. Eng. 45, 377–398.
Furthermore this is true.
Rules: Old humans pay for their meals that we order to be
delivered to the meeting room, younger humans (college students) eat
for free. Coffee and tea and sometimes cake or cookies, a
white board, computer with Internet link, and computer video
projector are in the room that we meet in.
We generally start by listen to a little music while
eating and then start studying and asking questions. Lately the
music has been by Utah
Phillips, a labor organizer, folk singer, storyteller, poet and
self-described "Golden Voice of the Great Southwest". We are
clearly corrupter's of the youth just as Socrates was. Anyone who
is free when we meet and is interested in our study of Geometric
Algebra is welcome. Many more people have been invited by a
factor of several than have ever showed up, mostly mathematics and
physics faculty from all of the campuses of Montgomery College and
students from the "Science Adventure Club" that Harold Williams is the
adviser. Currently we are learning to multiply Multivectors
(vectors) in a Linear Space (sometimes called a vector space)
over a scaler Fields
a Clifford Algebra. This has great application in engineering,
computer science (vision), and physics.
Meetings in the 2007-2008 Academic year
5:30PM Friday, September 14, 2007 at Mayorga Coffee Factory
6PM Friday, October 5, 2007 at ST301
6PM Friday, October 26, 2007 at ST301
6PM Friday, November 16, 2007 at ST301 directory
of pictures from my crummy cell phone camera during this meeting,
but very informative about what we do.
Tuesday, December 4, 2007 University of MD at College Park Physics
Colloquia attended by old humans given by Sean Carroll notes.
6PM Friday, December 7, 2007 at ST301 directory
of pictures from my crummy cell phone camera during this meeting,
but very informative about what we do.
Noon Friday, January 4, 2008 at
ST256, classes have not restarted
6PM Friday, January 11, 2008 at
ST256, classes have not restarted
6:30PM Friday, February 15, 2008
at
ST256
6:30PM Friday, February 22, 2008
at ST256
6:30PM Friday, March 21, 2008 at
ST256
6:30PM Friday, March 28, 2008 at ST256 a directory
of pictures taken on this date with my wife's digital camera.
6:30PM Friday, April 18, 2008 at
ST256
6:30PM Friday, April 25, 2008 at
ST256
6:30PM Friday, May 16, 2008 at
ST256
after college commencement! We will decide on future dates this
summer.
6:30PM Friday, May 30, 2008 at ST256
6:30PM Friday, June 13, 2008 at ST256
6:30PM Friday, June 27, 2008 at ST256
6:30PM Friday, July 25, 2008 at ST256
18 meeting completed the first academic year studing Geometric
(Clifford) Algebra!
Meeting in the 20008-2009 Academic year
6:30PM Friday, September 5, 2008 at ST256 We started on
Geometrical Calculus, we only got the first two pages done so you can
catch up we spent a lot of time reviewing with a new MC student Cassidy
Ferrel, who is also in the US Army. Wayne Warren and Walter Faust
were absent so being Faustless we also did not cover as much material
as carefully as when we have Walter Faust! We had two MC students
as Chris Leeney was also with us. Our leader Alan Bromborsky and
our host Harold Williams is always there and Michael Brabanski and Jack
Gaffey were also in attendance.
6:30PM Friday, September 19, 2008 at ST256 We shall continue
Geometrical Calculus!
6:30PM
Friday, September 26, 2008 at ST256
6:30PM
Friday, November 7, 2008 at ST256
6:30PM
Friday, November 21, 2008 at ST256
6:30PM
Friday, December 12, 2008 at ST256
6:30PM
Friday, January 9, 2009 at ST256 a directory
of pictures taken won this date.
6:30PM
Friday, January 30, 2009 at ST256 canceled on account of two essential
members feeling poorly.
6:30PM
Friday, February 20, 2009 at ST256
6:30PM
Friday, March 27, 2009 at ST256
6:30PM
Friday, April 10 (Good Friday), 2009 at ST256
6:30PM
Friday, April 24, 2009 at ST256
Future dates!
6:30PM
Friday, May 22, 2009 at ST256 Possible?
Links:
Geometric Algebra Net
at University of Amsterdam, Computer Scientist; support for the
excellent book "Geometric Algebra for Computer
Science, an object oriented approach to Geometry"
Geometric Calculus: David
Hestenes and Group at the University of Arizonia, Physicist
Geometric
Algebra for Physicist: Chris Doran and Anthony
Lasenby at Cambridge University
Scientific Python recommended by
Alan Bromborsky
Python(x,y):
Free scientific and engineering
development software, recommended by
Alan Bromborsky
Applied
Geometric Algebra by László Tisza is Professor
of Physics Emeritus at MIT,
where he began teaching in 1941. This online publication is a
reproduction the original lecture notes for the course "Applied
Geometric Algebra" taught by Professor Tisza in the Spring of 1976 in
MITOpenCourseware. This was found by Cassidy Ferrel, MC student
participant in our Geometric Algebra Study group.
Montgomery
College's Planetarium home page.
web page by Dr. Harold Williams, last modified 11:19PM Sunday May
3,
2009.