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  2. Pascaline - Wikipedia

    en.wikipedia.org/wiki/Pascal's_calculator

    Pascaline (also known as the arithmetic machine or Pascal's calculator) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen . [ 2 ]

  3. Wilhelm Schickard - Wikipedia

    en.wikipedia.org/wiki/Wilhelm_Schickard

    Wilhelm Schickard (22 April 1592 – 24 October 1635) was a German professor of Hebrew and astronomy who became famous in the second part of the 20th century after Franz Hammer, a biographer (along with Max Caspar) of Johannes Kepler, claimed that the drawings of a calculating clock, predating the public release of Pascal's calculator by twenty ...

  4. Mechanical calculator - Wikipedia

    en.wikipedia.org/wiki/Mechanical_calculator

    The machine was a bridge in between Pascal's calculator and a calculating clock. The carry transmissions were performed simultaneously, like in a calculating clock, and therefore "the machine must have jammed beyond a few simultaneous carry transmissions".

  5. List of online digital musical document libraries - Wikipedia

    en.wikipedia.org/wiki/List_of_Online_Digital...

    Sheet music published in California between 1852 and 1900, along with related materials such as a San Francisco publisher's catalog of 1872, programs, songsheets, advertisements, and photographs. Images of every printed page of sheet music from eleven locations have been scanned at 400 dpi, in color where indicated. University of California ...

  6. File:Pascaline calculator.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Pascaline_calculator.jpg

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  7. IP Pascal - Wikipedia

    en.wikipedia.org/wiki/IP_Pascal

    IP Pascal implements the language "Pascaline" (named after Blaise Pascal's calculator), which is a highly extended superset of ISO 7185 Pascal. It adds modularity with namespace control, including the parallel tasking monitor concept, dynamic arrays, overloads and overrides, objects, and a host of other minor extensions to the language.

  8. Leibniz wheel - Wikipedia

    en.wikipedia.org/wiki/Leibniz_wheel

    In the position shown, the counting wheel meshes with three of the nine teeth of the Leibniz wheel. A Leibniz wheel or stepped drum is a cylinder with a set of teeth of incremental lengths which, when coupled to a counting wheel, can be used in the calculating engine of a class of mechanical calculators.

  9. Interval vector - Wikipedia

    en.wikipedia.org/wiki/Interval_vector

    Successive Z-related hexachords from act 3 of Wozzeck [4]: 79 Play ⓘ. In musical set theory, a Z-relation, also called isomeric relation, is a relation between two pitch class sets in which the two sets have the same intervallic content (and thus the same interval vector) but they are not transpositionally related (are of different T n-type ) or inversionally related (are of different T n /T ...