Simon Stevin: Rule

Simon Stevin was Flemish scientist, mathematician and military engineer. Explore interesting quotes on rule.
Simon Stevin: 22   quotes 0   likes

“…the use of the Disme …to teach such as doe not already know the use and practize of Numeration, and the foure principles of common Arithmetick, in whole numbers, namely, Addition, Substraction, Multiplication, & Division, together with the Golden Rule, sufficient to instruct the most ignorant in the usuall practize of this Art of Disme or Decimall Arithmeticke”

Simon Stevin

Disme: the Art of Tenths, Or, Decimall Arithmetike (1608)

Art

“The seventh Definition. The Golden Rule, or Rule of three, is that by which to three tearmes given, the fourth proportionall tearme is found.”

Simon Stevin

Disme: the Art of Tenths, Or, Decimall Arithmetike (1608)

“The Rule of Three, or Golden Rule of Arithmeticall whole Numbers. Be the three termes given 2 3 4. …To finde their fourth proporcionall Terme: that is to say, in such Reason to the third terme 4, as the second terme 3, is to the first terme 2 [Modern notation: \frac{x}{4} = \frac{3}{2}]. …Multiply the second terme 3, by the third terme 4, & giveth the product 12: which dividing by the first terme 2, giveth the Quotient 6: I say that 6 is the fourth proportional terme required.”

Simon Stevin

Disme: the Art of Tenths, Or, Decimall Arithmetike (1608)