Extending fractals into the plane of complex numbers followed in 1979.

ECONOMIST: Beno?t Mandelbrot

Substantially more complex than previous aircraft, the new plane required the pilot to attend to the four engines, a retractable landing gear, new wing flaps, electric trim tabs that needed adjustment to maintain control at different airspeeds, and constant-speed propellers whose pitch had to be regulated with hydraulic controls, among other features.

NEWYORKER: The Checklist

Enter the cockpit of a fighter plane and you will be amazed by the myriad arrays of display panels and complex control systems.

FORBES: Why every manager should think and act like a CEO

His intelligence operates on a higher plane, but his true gift is the ability to distill his complex theories into easily digestible terms.

CNN: STORY HIGHLIGHTS

Complex numbers, which have a real and an imaginary part added together, are the points on this plane that do not lie on either axis.

ECONOMIST: Beno?t Mandelbrot