Maths at Bondi Beach

Number theory

1.  How to derive Cardano's formula for the cubic.  A detailed paper can be downloaded here:  All you wanted to know about solving cubics but were afraid to ask

A Youtube video presentation can be accessed here:
Or download here

2. Ever wondered how the residents of Easter Island managed to get those huge stone heads in place? Well, that’s a bit like wondering how they solved quartic equations in the 16th century without computers.  To understand how it was done have a look at the  following paper which builds upon my paper on how to solve cubic equations (which you should read first or watch the video): Solving a quartic by the method of radicals.pdf