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  2. Jakow Trachtenberg - Wikipedia

    en.wikipedia.org/wiki/Jakow_Trachtenberg

    Jakow Trachtenberg (17 June 1888 – 26 October 1951) was a mathematician who developed the mental calculation techniques called the Trachtenberg system. [1] He was born in Odessa, in the Russian Empire (today Ukraine). He graduated with highest honors from the Mining Engineering Institute in St. Petersburg and later worked as an engineer in ...

  3. Trachtenberg system - Wikipedia

    en.wikipedia.org/wiki/Trachtenberg_system

    Trachtenberg system. The Trachtenberg system is a system of rapid mental calculation. The system consists of a number of readily memorized operations that allow one to perform arithmetic computations very quickly. It was developed by the Ukrainian engineer Jakow Trachtenberg in order to keep his mind occupied while being in a Nazi concentration ...

  4. List of Jewish mathematicians - Wikipedia

    en.wikipedia.org/wiki/List_of_Jewish_mathematicians

    This list of Jewish mathematicians includes mathematicians and statisticians who are or were verifiably Jewish or of Jewish descent. In 1933, when the Nazis rose to power in Germany, one-third of all mathematics professors in the country were Jewish, while Jews constituted less than one percent of the population. [1]

  5. Mathematical logic - Wikipedia

    en.wikipedia.org/wiki/Mathematical_logic

    t. e. Mathematical logic is the study of formal logic within mathematics. Major subareas include model theory, proof theory, set theory, and recursion theory (also known as computability theory). Research in mathematical logic commonly addresses the mathematical properties of formal systems of logic such as their expressive or deductive power.

  6. Talk:Trachtenberg system - Wikipedia

    en.wikipedia.org/wiki/Talk:Trachtenberg_system

    The "crown jewel" of the Trachtenburg system is a rapid method of multiplication of two numbers each of arbitrary number of digits. It is called the "two finger method", and this article ought to have a description of it.

  7. Carl Gustav Jacob Jacobi - Wikipedia

    en.wikipedia.org/wiki/Carl_Gustav_Jacob_Jacobi

    Otto Hesse. Friedrich Julius Richelot. Carl Gustav Jacob Jacobi (/ dʒəˈkoʊbi /; [2] German: [jaˈkoːbi]; 10 December 1804 – 18 February 1851) [a] was a German mathematician who made fundamental contributions to elliptic functions, dynamics, differential equations, determinants, and number theory.

  8. Ars Conjectandi - Wikipedia

    en.wikipedia.org/wiki/Ars_Conjectandi

    Ars Conjectandi. Ars Conjectandi (Latin for "The Art of Conjecturing") is a book on combinatorics and mathematical probability written by Jacob Bernoulli and published in 1713, eight years after his death, by his nephew, Niklaus Bernoulli. The seminal work consolidated, apart from many combinatorial topics, many central ideas in probability ...

  9. Jakob Levitzki - Wikipedia

    en.wikipedia.org/wiki/Jakob_Levitzki

    Biography. Levitzki was born in 1904 in the Russian Empire and emigrated to then Ottoman -ruled Palestine in 1912. After completing his studies at the Herzliya Gymnasia, he travelled to Germany and, in 1929, obtained a doctorate in mathematics from the University of Göttingen under the supervision of Emmy Noether. [1]