Integraph

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Integraph after Abakanowicz, catalog sketch 1915

An integraph is a mathematical tool for plotting the integral of a function graph . He draws the integral curve directly while the user runs the graph of a given function with a driving pen. Around 1880 the English physicist Sir Charles Vernon Boys and the Polish-Lithuanian mathematician Bruno Abakanowicz invented two such instruments independently of one another, which were later modified and further improved.

See also

literature

  • Bruno Abdank-Abakanowicz : Les intégraphes, la courbe intégrale et ses applications, étude sur un nouveau système d'intégration mécanique , Paris 1886. (Translation into German as "The integraphs. The integral curve and their applications" by Emil Bitterli , Leipzig 1889)
  • Walther Dyck : Two integraphs. Abdank-Abakanowicz system. Construction Coradi. In: Catalog of mathematical and mathematical-physical models, apparatus and instruments , Wolf & Sohn, Munich 1892, pp. 197–201.
  • H. Schilt: Integrating with the integraph Coradi. System: Abdank-Abakanowicz. Technical tasks with solution examples. 1950.