Io. Bapt. Portae Neapolitani Magiae natvralis libri XX (1589)
Porta, Giambattista della, approximately 1535-1615 · Neapoli : Apud Horatium Saluianum · leaf 291
do per 20 veniunt 2 160:mul« tiplicabo perpartes fagitte AC fexaginta prouenient 129600. In tertia linea funt radices predicti nu- meri, fcilicet linez ordinate , addendo igitur 129600 quatuor nullas , erunt 129600000. Ex quibus radix quadrata erit 26600, dug poftreme cifre altera deciraas pattes… … His pera&is , accipio radicum differentias maioresad minimas :Sunt enim ex 160.0. 0. ad 415. 6. 9 Ell gatur pedis menfüura,ad quam diftantiam fpeculnm confttuere volumus,fit AB, quam in 55. partes di» uidio , acapio 20. partes;fcilicet due tertie, lineam ei addo ad angulum re&um, fcilicet B. & fit…
Science -- Early works to 1800 · Industrial arts -- Early works to 1800 · Magnetism -- Early works to 1800
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