Johannes Hudde

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caption = Johannes van Waveren Hudde
birth_date = April 23, 1628
birth_place = Amsterdam
death_date = April 15, 1704
death_place = Amsterdam
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field = mathematics
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Johannes (van Waveren) Hudde (April 23, 1628, Amsterdam - April 15, 1704, Amsterdam) was a burgomaster (mayor) of Amsterdam between 1672 – 1703, a mathematician and governor of the Dutch East India Company.

As a "burgemeester" of Amsterdam he ordered that the city canals should be flushed at high tide and that the polluted water of the town "secreten" should be diverted to pits outside the town instead of into the canals. He also promoted hygiene in and around the town's water supply.

"Huddes stones" were marker stones that were used to mark the summer high water level at several points in the city. They later were the foundation for the "NAP", the now Europe-wide system for measuring water levels.

Mathematician

Johannes Hudde studied law in Leiden, but turned to maths under the influence of his teacher Frans van Schooten. From 1654 to 1663 he worked under van Schooten and with his fellow students Johan de Witt and Hendrik van Heuraet they translated Descartes's "La Géométrie" into Latin. Each of the students added to the work. Hudde's contribution consisted of a study on maxima and minima and a theory of equations.

Hudde corresponded with Baruch Spinoza and Christiaan Huygens, Johann Bernoulli, Isaac Newton and Leibniz. Newton and Leibniz mention Hudde many times and used some of his ideas in their own work on calculus.

External links

*MacTutor Biography|id=Hudde
* http://www.gravenopinternet.nl Grave of Hudde in the "Oude kerk" van Amsterdam
* http://home.tiscali.nl/~wr2777/NAP-niveau.htm Pagina about NAP and Hudde's stones
* http://turnbull.mcs.st-and.ac.uk/~history///Biographies/Hudde.html Mathematical biography