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Guilelmi Oughtred ... Opuscula mathematica hactenus inedita (1677)

Oughtred, William, 1575-1660 · Oxonii : E. Theatro Sheldoniano · leaf 22

An illustration from Guilelmi Oughtred ... Opuscula mathematica hactenus inedita, 1677, leaf 22
4 Ivflitutiones ! Fiat AB. AG :: F.H l eequiponderant, ErAB.AD,:: E.K j p. ó. 1. Archim. Dico H3 K -EsF: Ideoq; E , F ex C equiponderare ipfis H1K ex PA . Nam dividatur H in F4 L & E in K«4I: betur IL. ? Erit AG— AB,AB:: H—F,F : hoc eft GC. AB :: Lt. "3 Et AB—AD.AB: E—K.E:hoc eft DC,AB:: T. E at*… … Fiat AB. AG: F.H. Proinde F. 4 H. & E « K. per Schol. 14. E. $ QUA mA DM L 2x confürudi nrimá invertendo & dividendo. conft: fecundá dividendo converfim. Ex] y pothefi. Ex «quo perturbaté, Perg. E

Mathematics

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