Core Maths

This method for finding the centre, and by extension the equation, of a circle given three non-colinear points, brings the ancient textbook master Euclid onto Descartes’ coordinate plane and right  into the 21 century classroom. 

Pascal’s triangle with each term expressed as a remainder when divided by 2.  The pink squares show whether a number is odd or not.  This appears to give a fractal pattern.