### Big numbers

One of my children decided that we need a family points system, and wrote up a table on the whiteboard…

Skip to content
#

# Category: Computation

### Big numbers

### REDUCE released as open source

### Sage: an open source mathematics software system

### Visual Cryptography

### Nice semiprimes

### An introduction to Axiom (7): Programming

### Happy birthday, A.T.

### Calculating pi

### Numerical computation of square roots

### A really beautiful animation

Various things, mostly mathematical

One of my children decided that we need a family points system, and wrote up a table on the whiteboard…

I was told only a few days ago that the venerable computer algebra system REDUCE has been released as open…

In one of his travel books, Bill Bryson claims that he could spend every evening of his life arriving in…

In 1979, Adi Shamir (the “S” in RSA) and George Blakely independently produced the concept of “secret sharing”. Suppose group…

A semiprime is a number which is the product of two primes , such as 15. While searching round for…

(It’s been a while since I posted about Axiom – that’s what exam marking does!) Axiom has a full and…

Today, June 23, 2008, marks the 96th anniversary of the birth of Alan Turing, one of the few truly great…

Here’s a lovely iteration which converges quadratically to . Start with: . Then: for for for This remarkable iteration comes…

If you calculate by applying the Newton iteration to the equation , you obtain . The trouble with this particular…

Every now and again I come across a mathematical image so powerful that it quite stops me in my tracks….