Seventeen Equations that Changed the WorldBy: Ian Stewart From Newton's Law of Gravity to the Black Scholes model used by bankers to predict the markets, equations, are everywhere and they are fundamental to everyday life. Seventeen Equations that Changed the World examines seventeen ground breaking equations that have altered the course of human history. He explores how Pythagoras's Theorem led to GPS and Satnav; how logarithms are applied in architecture; why imaginary numbers were