Cross Diagonalisation
A proof of why diagonalising matrices works, relying heavily on use of the Cross product with a couple of applications.
The Blog Page
Here's where I get to unload all of my mathematical angst. Ideas I've had swimming about in my head for years, things I've read or heard about that aren't well known but should be. A-level content that is never in the text books but which is so interesting or useful I can't understand why it has been left out. I'll post one article per month on whatever my latest maths musings are. I hope you enjoy at least some of it....