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Wie was de ontdekker van de negenproef?

Wie was de ontdekker van de negenproef?

L & K
Leerling bovenbouw havo-vwo - maandag 28 oktober 2002

Antwoord

"Casting out nines was transmitted to Europe by the Arabs, but was probably an Indian invention and is therefore sometimes also called "the Hindu check." The procedure was described by Fibonacci in his Liber Abaci (Wells 1986, p. 74)."

BRON

wh
maandag 28 oktober 2002

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