author: john lee of cambridge

Proportional Formulae, Bi-complex and Tri-complex, Or A System, Algebraically Derived from the Nature of Proportionals, for the Facilitation of that Process in Arithmetic Commonly Called the Rule of Three

John Lee (of Cambridge, Mass.) REMARK . The following notes will facilitate the management of the two fractions which appear in each of these formulæ . NOTE 1. If to any integral number , a fraction whose numerator is 0 be appended by ...