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On This Day

  • 5-9-1694

    Johann Bernoulli wrote Leibniz, introducing the method of "separation of variables" or "separation of indeterminates." He would publish the method in Acta eruditorum in November of 1694.

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    Johann Bernoulli
    Separation of Variables

  • 5-9-1746

    Geometer Gaspard Monge born in Beaune, France, where there is a statue of him. Monge is considered the "father of differential geometry."

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    Gaspard Monge

  • 5-9-1876

    Gilbert Ames Bliss born in Chicago. At University of Chicago, he worked in the calculus of variations and, throughout his career, stressed the importance of a strong union between teaching and research.

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    Gilbert Ames Bliss
    Calculus of Variations