Archive for the 'Math and Physics' Category

More Mathematica Fun for Memorial Day

Monday, May 30th, 2011

Mathematica Users LinkedIn contributor Sol Lederman posted a Mathematica Programming Contest on his Playing with Mathematica blog this weekend for Memorial Day: Draw the US Flag in Mathematica. To be eligible to win you should get the colors roughly right as well as the number of stars and stripes. I’ll give extra points if your […]

UW Challenge June 10

Tuesday, June 17th, 2008

This weeks problem: Determine A2008 if A0 = A and An+1 = An / (1 + n An), for n = 0, 1, 2, …   Solution: A2008 = A / (1 + 2 015 028 A )   See my full solution PDF (With Mathematica and by-hand solutions).

UW Challenge April 28 2008

Monday, April 28th, 2008

This week’s problem: Andrew has n3 white cubes of the size 1 x 1 x 1. He wants to construct an n x n x n cube with all its faces being completely white. Find the minimal number of the faces of small cubes that Basil must paint black in order to prevent Andrew from […]

UW Challenge April 21 2008

Sunday, April 20th, 2008

This week’s problem: Find the minimum number of squares that are required to draw a complete n x n grid. For example, when n = 2, the answer is 3, as three squares suffice: a 2×2 and two 1×1 squares (draw a picture!); moreover it is easy to see it can’t be done with fewer. […]

UW Math Challenge of the Week Winner

Saturday, April 19th, 2008

The UW Math Department offers a weekly challenge, with a small prize picked each week. A couple weeks ago, they picked me, much to my surprise :-). While I only do these for fun, and the intent is for the prize to go to Undergrads, then Grad students, and finally Faculty, it was nice to […]