Ezechiel de Decker (c. 1603-c. 1647) was a Dutch surveyor and teacher of mathematics.
Tables of logarithms
In 1625, De Decker entered a contract with
Adriaan Vlacq
Adriaan Vlacq (1600–1667) was a Dutch book publisher and author of mathematical tables. Born in Gouda, South Holland, Gouda, Vlacq published a table of logarithms from 1 to 100,000 to 10 decimal places in 1628 in his ''Arithmetica logarith ...
for the publication of
several translations of books by
John Napier
John Napier of Merchiston (; 1 February 1550 – 4 April 1617), nicknamed Marvellous Merchiston, was a Scottish landowner known as a mathematician, physicist, and astronomer. He was the 8th Laird of Merchiston. His Latinized name was Ioann ...
,
Edmund Gunter
Edmund Gunter (158110 December 1626), was an English clergyman, mathematician, geometer and astronomer of Welsh descent. He is best remembered for his mathematical contributions which include the invention of the Gunter's chain, the Gunter's qu ...
and
Henry Briggs Henry Briggs may refer to:
*Henry Briggs (mathematician) (1561–1630), English mathematician
*Henry Perronet Briggs (1793–1844), English painter
*Henry George Briggs (1824–1872), English merchant, traveller, and orientalist
*Henry Shaw Briggs ...
. A first book was published in 1626, with several translations
done by Vlacq. A second book was made of the logarithms of the first 10000 numbers
from Briggs'
Arithmetica logarithmica published in 1624. The logarithms were shortened
to 10 places. In 1627, De Decker's "Tweede deel" was published and it contained
the logarithms of all numbers from 1 to 100000, to 10 places. Only very few copies of
this book are known and its publication was apparently stopped or delayed.
In 1628, Vlacq's
Arithmetica logarithmica was published and contained exactly
the tables published in 1627.
Publications
* Ezechiel de Decker: ''Eerste Deel van de Nieuwe Telkonst'', 1626
* Ezechiel de Decker: ''Nieuwe Telkonst'', 1626
* Ezechiel de Decker: ''Tweede Deel van de Nieuwe Tel-konst'', 1627 (partial facsimile published in 1964)
References
{{DEFAULTSORT:Decker, Ezechiel De
1600s births
1640s deaths
Dutch surveyors