Feynman’s Integral Trick with ‘Math With Bad Drawings’

Richard Feynman famously used differentiation under the integral sign to solve many difficult problems, including one during his time at Los Alamos Laboratory during World War II that had stumped researchers for 3 months. Learn how Feynman’s Integral Technique works from Oxford Mathematician Dr Tom Crawford with the help of Ben Orlin from Math With Bad Drawings and his brilliant cartoons.