Take a look at the multiplication square. The first eleven triangle numbers have been identified. Can you see a pattern? Does the pattern continue?
Can you describe this route to infinity? Where will the arrows take you next?
Delight your friends with this cunning trick! Can you explain how it works?
Where we follow twizzles to places that no number has been before.
Arrow arithmetic, but with a twist.
A loopy exploration of z^2+1=0 (z squared plus one) with an eye on winding numbers. Try not to get dizzy!
Make the twizzle twist on its spot and so work out the hidden link.