Thursday, December 11, 2003
the code

I've uploaded the code I'm using for exploring 1D CAs here.

It's minimally documented, but the code should be straightforward. It may not be pretty, but it's straightforward.

7:41:44 PM    comments ()  trackback []  

West Wing DVD

As an early Xmas present to ourselves, my wife and I bought the first season of West Wing on DVD. I spent last evening just watching the episodes on the first side of the first disc.

Wow. Those first ones are good. I miss that kind of show. Good thing you can get it on DVD.

10:07:21 AM    comments ()  trackback []  

question

Are the CA posts getting boring?

9:33:11 AM    comments ()  trackback []  
more ca

I'm going to have to create a CA category.

Did a little more exploring. Wrote a quicky python program to evaluate 1D CA's, and quickly discovered that all the rules that meet the validity test (as specified in Wolfram's first CA paper) create boring automata. Some are pretty, most are boring. The pretty ones create patterns that are variations upon Pascal's Triangle.

The interesting patterns all come from rules that are "invalid." Since there are only 256 rules for the CAs I am looking into, it was a quick matter to throw together a program and run all of the rules for 50 iterations on simple seeds. I then inspected the output for "interesting" patterns, and as a first approximation, I came up with the list of rules 30, 45, 75, 86, 89, 101, 107, 121, 135, 137, 149, 169, 193, and 225 as producing interesting, meaning chaotic, patterns.

Wow, I suppose that this blog is becoming a little bit of a lab notebook.

This is certainly fun. I'm hoping I can work through "A New Kind of Science" when I get a copy.

9:10:47 AM    comments ()  trackback []