Math

How to make a maze without really trying
Esra Sdrawkcab wrote: ... This was subject to a smallest asm code competition last year. http://www.frontiernet.net/~fys/hugi/hcompo.htm 122 bytes to generate and display a maze! I wrote a small program in basic when I was a teenager that generated random mazes. (Much larger than 122 bytes, tho... 22 Jun 2010 08:16

IRREVERSIBILITY OF TIME
Sometimes, generality is in tiny details. Maybe therefore it's not in here: http://groups.google.nl/group/sci.math/msg/93470d4b6a380563 But in here: http://groups.google.nl/group/sci.math/msg/ffce208afa5b2555 Han de Bruijn ... 22 Jun 2010 06:06

KAPATID NI TEKWA SINUNGALING, EVEN JOSEFA CINCO IS IN
Buking na siya, sinungaling talaga. Nagsabwatan pala sila doon sa dapat napunta ke Ysh, ibang tao ginawang front, tapos sa anak niya pala ibibigay. Naghati pa sila doon. Sabi nga ni Tekwa, last Christmas nga nagbigay pa siya doon ng P500,000 kasi installment. Pwes, para malaman ninyong lahat, procee na sa r... 21 Jun 2010 19:11

FAILING MALAYSIAN CHRISTMAS DEAL BOLKIAHS FAULT (PLS. READ BOLKIAH BOBOS.COM)
1. RE: Shady Malaysian deal. It was all Bolkiah handiwork, as if the most seniors and highest don’t have Gift of the Third Eye. Where would he get his data? Everything is centralized now, with official data to be released only by Owan.com, de facto leader, after verification of three witnesses. 2. One ve... 21 Jun 2010 19:11

Minimal volume polyhedron with N triangular faces containing a unitsphere
I'm after the 3D polyhedron with N>3 triangular faces, containing the sphere of radius 1, that has the minimum volume. A face with M sides counts as M-2 triangles. The problem has sort of a practical application when trying to make a ball by sanding a polyhedron obtained using 3D printing, where typically shapes are... 21 Jun 2010 19:11

Pochhammer symbols and Vandermonde's identity
Just wondering if there is a "nice" way to prove Vandermonde's identity by playing with Pochhammer symbols. Looked for identities involving Pochhammer symbols, but didn't managed to use those to prove Vandermonde's identity. ... 22 Jun 2010 13:49

IMO 2006 6th problem
I was solving problems from the 2006 Math Olympiad, and I came across this one, which puzzled me for many days: Assign to each side b of a convex polygon P the maximum area of a triangle that has b as a side and is contained in P. Show that the sum of the areas assigned to the sides of P is at least twice the ... 22 Jun 2010 06:06

Change in coordinate system
Hi, I have an oblique coordinate system (a,b,c) and its associated dual space (a*,b*,c*). I have an orthonormal coordinate system (x,y,z). I have defined a matrix G that converts coordinates from (a,b,c) to (x,y,z). I also have a doubly contravariant tensor U in (a,b,c) that I would like to express in (x,y... 21 Jun 2010 18:03

Predicate -- A Game of Numbers And Creativity
This is a simple game that has the potential to go horribly wrong... This game is for any plural number of players. Let the number of players be m. Each player has a different colored pen/pencil/crayon. Make a number line with the positions immediately beneath it labeled in order with 1 through m*n, where n ... 30 Jun 2010 08:40

DISTANCE BETWEEN " POINT A "and " POINT B"
Some one asked Hope research the practical Value of inverse-1 tangent Mathematics. Very simply in Temporal current mathematics, reference is a point and numerations have only linear references , so that the numbers do not have a height. In spatial mathematics, "space is curved" and numbers do have a height... 21 Jun 2010 16:56