Ian Stewart is my favourite Maths teacher/writer – easy to read and his discussions are accessible for our TOK students.
In this latest book, 17 Equations that Changed the World, Stewart identifies and explores seventeen equations that he believes are fundamental to the development of western history. The equations range from Pythagoras’s theorem about right-angled triangles, to contemporary selections such as Black-Scholes equation about financial derivatives. It also includes a discussion of the intriguing square root of minus one.
