成人快手

Tim Harford talks to mathematically-minded comedian Matt Parker about what happens when maths mistakes are made in the real world.

The author of a new book, Humble Pi, reveals how numerical errors have caused major problems for airline pilots and, potentially, a vast number of the world鈥檚 computers.

Producer: Lizzie McNeill

(Two and two make five, an incorrect equation written on a blackboard. Credit: Getty Images)