Feynman’s Favorite Math Trick

Differentiating under the integral sign

Feynman is no doubt one of the tyrants in the field of Quantum mechanics. His peculiar curiosity in any intellectual field was unfathomable. In Mathematics, his favorite trick was to use differentiation under the integral sign. Derivatives are structured and easier to analyze than integration, thus Feynman percolated the idea, ‘Why not use

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Sunny Labh

Sunny Labh

Science writer and communicator majoring in Quantum Mechanics. Founder of @PhysInHistory and Curator for @ProfFeynman on twitter. Email: thepiggsboson@gmail.com