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Published at 2560 × 507 in Celebrating simple mathematical models
Three coupled differential equations. The rate that susceptible people become infected is proportional to the rate of interactions between susceptible and infected individuals. The number of people who recover increases in proportion to the number of infected people.

David teaches and researches maths at King’s College London, with a focus on geometry. In his spare time he likes to make music and read poetry.
davidsheard.co.uk/    All articles by David

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