As I explained on the page Numbers and Shapes, this blog is moving to a new home, and you’ll find this post there: The foolishness of signature images Enjoy!
Astute readers will notice that it’s been a very long time (five months!) since my last post. This is because I’ve been on sabbatical for this time, and not teaching. While this has been a wonderful opportunity to get to
In my last post I mentioned the new language Julia. It deserves more than a single paragraph, so I thought I’d walk through a problem, and tackle it with the language. The problem is a stock standard one: investigating the
Over two years ago I wrote The best Matlab alternative with a follow-up a bit later, which seem to have engendered a far amount of discussion. Well, things have moved on in the computational world, and a user is now
In the interests of random number generation, I’ve been experimenting with the iteration for a prime and a primitive root . Now, it turns out that some primes have a primitive root which generates all non-zero residues, and others don’t.
In my effort to find the perfect CAS calculator, I recently acquired one of these babies: It has many of the hallmarks of the engineering excellence which used to be such a selling point with HP calculators: the keys are
The Casio ClassPad II (fx-CP400) is the latest CAS offering from Casio: building on the previous ClassPad model to provide a calculator with a large color screen, and the ability to operate it in landscape or portrait mode. I acquired