Adriaan Vlacq

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Adriaan Vlacq (Gouda, 1600 - The Hague, 1667) was a Dutch book publisher and mathematician. Born in Gouda, Vlacq published a table of Henry Briggs' logarithms from 1 to 100,000 to 10 decimal places in 1628 in his Arithmetica logarithmica. Briggs' original tables only covered the values 1-20,000 and 90,000 to 100,000 so Vlacq calculated and added 70,000 further values to complete the tables.

In 1632, he settled in London but ten years later with the onset of the English Civil War, he moved to Paris and later moved to The Hague.

He died at The Hague in 1667.

Some of the craters on the moon are named after Vlacq. See Vlacq (crater).

[edit] External links

• O'Connor, John J. & Robertson, Edmund F., “Adriaan Vlacq”, MacTutor History of Mathematics archive