When1: 1946
Who: Mary Cartwright [Cartwright, Mary]/John Littlewood [Littlewood, John]
What: mathematician
Where: England
Detail: She lived 1900 to 1998. For non-linear radio amplifiers, equations {Van der Pol equation} can calculate output for sine-wave input. At higher amplifier gains, output period doubles input period and then becomes non-periodic. Van-der-Pol-equation solutions were early chaos-theory ideas.
Mathematical Sciences>Mathematics>History>Complexity Theory
3-Mathematics-History-Complexity Theory
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0224