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  2. Stepped reckoner - Wikipedia

    en.wikipedia.org/wiki/Stepped_reckoner

    The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of London [2] and completed in 1694). [1]

  3. Leibniz wheel - Wikipedia

    en.wikipedia.org/wiki/Leibniz_wheel

    Invented by Leibniz in 1673, it was used for three centuries until the advent of the electronic calculator in the mid-1970s. Gottfried Wilhelm Leibniz built a machine called the stepped reckoner based on the design of the stepped drum in 1694. [1]

  4. Mechanical calculator - Wikipedia

    en.wikipedia.org/wiki/Mechanical_calculator

    In 1672, Gottfried Leibniz started designing an entirely new machine called the Stepped Reckoner. It used a stepped drum, built by and named after him, the Leibniz wheel, was the first two-motion calculator, the first to use cursors (creating a memory of the first operand) and the first to have a movable carriage.

  5. Wikipedia : WikiProject Leibniz

    en.wikipedia.org/wiki/Wikipedia:WikiProject_Leibniz

    Welcome to WikiProject Leibniz. This collaboration resource and group is dedicated to improving Wikipedia's coverage of Gottfried Wilhelm Leibniz and the organization of information and articles on this topic. This page and its subpages contain their suggestions and various resources; it is hoped that this project will help focus the efforts of ...

  6. File:Leibniz Calculator Using The Pascaline.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Leibniz_Calculator...

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  7. List of things named after Gottfried Leibniz - Wikipedia

    en.wikipedia.org/wiki/List_of_things_named_after...

    Gottfried Wilhelm Leibniz (1646–1716) was a German philosopher and mathematician. In engineering, the following concepts are attributed to Leibniz: Leibniz wheel, a cylinder used in a class of mechanical calculators; Leibniz calculator, a digital mechanical calculator based on the Leibniz wheel

  8. Outline of Gottfried Wilhelm Leibniz - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Gottfried...

    The following outline is provided as an overview of and topical guide to Gottfried Wilhelm Leibniz: Gottfried Wilhelm (von) Leibniz (1 July 1646 [O.S. 21 June] – 14 November 1716); German polymath, philosopher logician, mathematician. [1] Developed differential and integral calculus at about the same time and independently of Isaac Newton.

  9. Pascaline - Wikipedia

    en.wikipedia.org/wiki/Pascal's_calculator

    Gottfried Leibniz invented his Leibniz wheels after 1671, after trying to add an automatic multiplication feature to the Pascaline. [6] In 1820, Thomas de Colmar designed his arithmometer , the first mechanical calculator strong enough and reliable enough to be used daily in an office environment.