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Quote#Wisdom

If a first sine be multiplied into a second producing a third, the…

Quote byJohn Napier · 1550–1617

Commonly attributed — not confirmed in an authoritative edition. Cited on Wikiquote to: The Construction of the Wonderful Canon of Logarithms (1889), Appendix, The relations of Logarithms & their natural numbers to each other.

English (original)

If a first sine be multiplied into a second producing a third, the Logarithm of the first added to the Logarithm of the second produces the Logarithm of the third. So in division, the Logarithm of the divisor subtracted from the Logarithm of the dividend leaves the Logarithm of the quotient.

— John Napier

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