Ezechiel de Decker, about 1603 to about 1647, was a Dutch surveyor and teacher of mathematics who worked on the printed tables of logarithms that made calculation practical before machines. In 1625 he signed a contract with Adriaan Vlacq to publish translations of books by John Napier, Edmund Gunter and Henry Briggs, and in 1626 appeared his Nieuwe Telkonst. His second part of 1627 contained the logarithms of all numbers from 1 to 100000 to ten places, though very few copies are known and its publication was apparently stopped or delayed. Vlacq's Arithmetica logarithmica of 1628 then appeared with exactly the same tables, which is why the two men share credit for the great table of common logarithms.
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
Tables of logarithms
In 1627, De Decker's "Tweede deel" was published and it contained
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
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Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
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