Charles Hermite
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Charles Hermite was a French mathematician who studied analysis, number theory, and algebra. One of his most remarkable achievements was the proof of the transcendence of the number e.
Charles Hermite circa 1887
Augustin-Louis Cauchy
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Baron Augustin-Louis Cauchy was a French mathematician, engineer, and physicist. He was one of the first to rigorously state and prove the key theorems of calculus, pioneered the field of complex anal
Lithography of Cauchy around 1840
Portrait of Cauchy by Jean Roller, today in the Château de Sceaux, near Paris
Cauchy in later life
The title page of a textbook by Cauchy.