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Mary Cartwright, English mathematician and academic, one of the first people to analyze a dynamical system with chaos (died 1998)

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Mary Cartwright
British mathematician (1900–1998)
Dame Mary Lucy Cartwright was a British mathematician. She was one of the pioneers of what would later become known as chaos theory. Along with J. E. Littlewood, Cartwright saw many solutions to a problem which would later be seen as an example of the butterfly effect.Source: Wikipedia (CC BY-SA)