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  2. Stepped reckoner - Wikipedia

    en.wikipedia.org/wiki/Stepped_reckoner

    The stepped reckoner was based on a gear mechanism that Leibniz invented and that is now called the Leibniz wheel. It is unclear how many different variants of the calculator were made. Some sources, such as the drawing to the right, show a 12-digit version. [5] This section describes the surviving 16-digit prototype in Hanover. Leibniz wheel

  3. File:Diagram of I Ching hexagrams owned by Gottfried Wilhelm ...

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

    English: A diagram of I Ching hexagrams owned by German mathematician and philosopher Gottfried Wilhelm Leibniz. It was sent to Leibniz from the French Jesuit Joachim Bouvet. The Arabic numerals written on the diagram were added by Leibniz. The grid in the center presents the hexagrams in Fuxi or binary sequence, reading across and down. The ...

  4. Mechanical calculator - Wikipedia

    en.wikipedia.org/wiki/Mechanical_calculator

    Leibniz built two Stepped Reckoners, one in 1694 and one in 1706. [6] The Leibniz wheel was used in many calculating machines for 200 years, and into the 1970s with the Curta hand calculator, until the advent of the electronic calculator in the mid-1970s. Leibniz was also the first to promote the idea of an Pinwheel calculator. [7]

  5. 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.

  6. Gottfried Wilhelm Leibniz - Wikipedia

    en.wikipedia.org/wiki/Gottfried_Wilhelm_Leibniz

    Gottfried Wilhelm Leibniz (or Leibnitz; [a] 1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat who is credited, alongside Sir Isaac Newton, with the creation of calculus in addition to many other branches of mathematics, such as binary arithmetic and statistics.

  7. Calculus ratiocinator - Wikipedia

    en.wikipedia.org/wiki/Calculus_ratiocinator

    Leibniz constructed just such a machine for mathematical calculations, which was also called a "stepped reckoner". As a computing machine, the ideal calculus ratiocinator would perform Leibniz's integral and differential calculus. In this way the meaning of the word, "ratiocinator" is clarified and can be understood as a mechanical instrument ...

  8. History of geometry - Wikipedia

    en.wikipedia.org/wiki/History_of_geometry

    In the late 17th century, calculus was developed independently and almost simultaneously by Isaac Newton (1642–1727) and Gottfried Wilhelm Leibniz (1646–1716). This was the beginning of a new field of mathematics now called analysis. Though not itself a branch of geometry, it is applicable to geometry, and it solved two families of problems ...

  9. Law of continuity - Wikipedia

    en.wikipedia.org/wiki/Law_of_continuity

    Leibniz used the principle to extend concepts such as arithmetic operations from ordinary numbers to infinitesimals, laying the groundwork for infinitesimal calculus. The transfer principle provides a mathematical implementation of the law of continuity in the context of the hyperreal numbers .