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  2. Thomas Fuller (mental calculator) - Wikipedia

    en.wikipedia.org/wiki/Thomas_Fuller_(mental...

    Born. c. 1710. African continent (around present-day Liberia and Benin) Died. December 1790. (1791-01) (aged 80) Alexandria, Virginia, U.S. Thomas Fuller (1710 – December 1790), also known as "Negro Demus" and the "Virginia Calculator", was an enslaved African renowned for his mathematical abilities.

  3. Tridiagonal matrix algorithm - Wikipedia

    en.wikipedia.org/wiki/Tridiagonal_matrix_algorithm

    In numerical linear algebra, the tridiagonal matrix algorithm, also known as the Thomas algorithm (named after Llewellyn Thomas), is a simplified form of Gaussian elimination that can be used to solve tridiagonal systems of equations. A tridiagonal system for n unknowns may be written as. {\displaystyle a_ {i}x_ {i-1}+b_ {i}x_ {i}+c_ {i}x_ {i+1 ...

  4. D'Hondt method - Wikipedia

    en.wikipedia.org/wiki/D'Hondt_method

    The D'Hondt method, [a] also called the Jefferson method or the greatest divisors method, is an apportionment method for allocating seats in parliaments among federal states, or in proportional representation among political parties. It belongs to the class of highest-averages methods. Compared to ideal proportional representation, the D'Hondt ...

  5. Llewellyn Thomas - Wikipedia

    en.wikipedia.org/wiki/Llewellyn_Thomas

    Llewellyn Hilleth Thomas (21 October 1903 – 20 April 1992) was a British physicist and applied mathematician. 1 He is best known for his contributions to atomic and molecular physics and solid-state physics. His key achievements include calculating relativistic effects on the spin-orbit interaction in a hydrogen atom (Thomas precession ...

  6. George B. Thomas - Wikipedia

    en.wikipedia.org/wiki/George_B._Thomas

    George Brinton Thomas Jr. (January 11, 1914 – October 31, 2006) was an American mathematician and professor of mathematics at MIT. Internationally, he is best known for being the author of the widely used calculus textbook Calculus and Analytic Geometry , known today as Thomas' Textbook .

  7. Bayes' theorem - Wikipedia

    en.wikipedia.org/wiki/Bayes'_theorem

    Bayes' theorem is named after the Reverend Thomas Bayes (/ beɪz /), also a statistician and philosopher. Bayes used conditional probability to provide an algorithm (his Proposition 9) that uses evidence to calculate limits on an unknown parameter. His work was published in 1763 as An Essay Towards Solving a Problem in the Doctrine of Chances.

  8. Body roundness index - Wikipedia

    en.wikipedia.org/wiki/Body_roundness_index

    v. t. e. Body roundness index. BRI vs height (vertical axis) vs. waist circumference (horizontal axis) Body roundness index (BRI) is a calculated geometric index used to quantify an aspect of a person's individual body shape. Based on the principle of body eccentricity, it provides a rapid visual and anthropometric tool for health evaluation. [1]

  9. Charles Xavier Thomas - Wikipedia

    en.wikipedia.org/wiki/Charles_Xavier_Thomas

    Charles Xavier Thomas de Colmar (May 5, 1785 – March 12, 1870) was a French inventor and entrepreneur best known for designing, patenting, and manufacturing the first commercially successful mechanical calculator, known as the Arithmometer. Additionally, he founded the insurance companies Le Soleil and L'aigle, which, under his leadership ...