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De uitvinder van tangens, sinus en cosinus

Wie is de uitvinder van tangens, sinus en cosinus?

Joey Kooistra
30-5-2005

Antwoord

Wat lees ik hier:

The first known table of chords was produced by the Greek mathematician Hipparchus in about 140 BC. Although these tables have not survived, it is claimed that twelve books of tables of chords were written by Hipparchus. This makes Hipparchus the founder of trigonometry.

Zie The trigonometric functions [http://www-history.mcs.st-and.ac.uk/history/HistTopics/Trigonometric_functions.html]

WvR
30-5-2005