Tetrahedral Ellipse Graphics by Paul Bourke <http://astronomy.swin.edu.au/%7Epbourke/surfaces/> March 2003 Attributed to Roger Bagula x = (1 - v) cos(u) y = (1...
Dear Roger and the Rest Members, Do you know how we may write a square in polar coordinates ? These are extremely difficult. BEST WISHES ARTUR ... From: Roger...
A safe way to do powers of complex numbers if to use the de Moivre relations: I=Sqrt[-1] Exp[I*n*t]=(Cos[t]+I*Sin[t])^n=Cos[n*t]+I*Sin[n*t] A complex number is...
I found this surface last night. It has the same angles and face number as a Dodecahedron and is made by a parametric algorithm. If you take the second Pi/5...
I have the total generator sets for the tetrahedral , octahedral and the Icosahedral point groups. What I'm looking for is the minimal generator set for these...
About SingleCrystal An elegant, easy-to-use program for visualizing and understanding diffraction patterns from single crystals. SingleCrystal provides...
Mathematical Explorer Educational and entertaining, The Mathematical Explorer delves into the historical and cultural details behind the most important...
Do you have some references forv this. Your notations is not that which is standard in the sciences/ spectroscopy where I found this point group. And Cotton in...
Mathematicans have a bad habbit of using "fashionalble notations". It seem very true in group theory that the notations of the resent past are ignored and...
I notice that he doesn't do it and that he uses the standard A4 notation as well. This is somewhat different than the interpretation posted by Jim Hickman. ...
There doesn't seem to be a very clear agreement on the groups for the platonic solids and their minimal representaions. Pure rotational tetrahedral group:...
It is very difficult to do actual geometric calculations with a permutation group like A4, A_4. One uses point groups ( special point groups for platonic type ...
For those interested in the roadmap of the emerging device technologies (including nanotechnology) can refer to http://public.itrs.net/ maybe it will help. ...
SCARBOROUGH COLLEGE <http://www.scar.utoronto.ca/> MATHEMATICS COMPUTER LABORATORY <http://www.math.scar.utoronto.ca/mathlab/> MAT B31: ALGEBRA I ... All...
Second Announcement: Midwest Conference in Several Complex Variables April 2 & 3 at Indiana University, Bloomington, IN The conference talks will be Saturday...
http://pup.princeton.edu/books.html Princeton University Press About Us SEARCH: Keywords Author Title More Options Power Search Search Hints E-MAIL NOTICES NEW...
http://www.pupress.princeton.edu/books/lo/ Contents for Lo & MacKinlay: A Non-Random Walk Down Wall Street SEARCH: Keywords Author Title More Options Power...
http://www.amazon.com/exec/obidos/ASIN/0883850281/102-8508737-8413734 Amazon.com: Books: Algebra and Tiling : Homomorphisms in the Service of Geometry (Carus...
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