Mathematician

Adriaan Anthonisz

Early Modern

Adriaan Anthonisz, also called Adriaen Anthonisz of Alcmaer, lived from 1527 to 1607 and was a Dutch mathematician, surveyor, cartographer and military engineer who specialised in the design of fortifications. He served as burgomaster of Alkmaar from 1582 and is regarded as one of the first military engineers to apply the principles of the Dutch fortification system, working on the expansion and fortification of Naarden and Muiden and on a map of the Berger lake. In 1585 he found that the ratio of a circle's circumference to its diameter is close to the fraction 355 over 113. His son Adriaan Metius later published the result, and the value is traditionally called Metius's number.

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Male 1
Birth Year
1527 1
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Source Adriaan Anthonisz (Wikipedia)Lead, nationality
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Adriaan Anthonisz (also known as Adriaen Anthonisz of Alcmaer) (1527–1607) was a Dutch mathematician, surveyor, cartographer, and military engineer who specialized in the design of fortifications.
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1. Adriaan Anthonisz (Wikipedia)
  • Lead, nationality
    Adriaan Anthonisz (also known as Adriaen Anthonisz of Alcmaer) (1527-1607) was a Dutch mathematician, surveyor, cartographer, and military engineer who specialized in the design of fortifications.
  • Biography, birth
    Adriaan Anthonisz (also known as Adriaen Anthonisz of Alcmaer) (1527-1607) was a Dutch mathematician, surveyor, cartographer, and military engineer who specialized in the design of fortifications.
  • Biography, gender
    His son Adriaan Metius later published his father's results, and the value ⁠355/113⁠ is traditionally referred to as Metius's number.
  • In Branch: Geometry, Lead, field of work
    Adriaan Anthonisz (also known as Adriaen Anthonisz of Alcmaer) (1527-1607) was a Dutch mathematician, surveyor, cartographer, and military engineer who specialized in the design of fortifications.
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