Introductio in analysin infinitorum

84 DE QUANTITATIBUS LIB. I. rithmis respondentes rationem habebunt, ut Potestas denarii ad unitatem, ideoque ratione figurarum, quibus constant, convenient. Ita horum Logarithmorum $4,9130187$ & $6,9130187$ numeri erunt $81850$ & $8185000$; Logarithmo autem $3,9130187$ conveniet $8185$, & Logarithmo huic $0,9130187$ convenit $8,185$. Sola ergo Mantissa indicabit figuras numerum componentes, quibus inventis, ex Characteristica patebit, quot figurae a sinistra ad integra referri debeant, reliquae ad dextram vero dabunt Fractiones decimales. Sic, si hic Logarithmus fuerit inventus $2,7603429$, Mantissa indicabit has figuras $5758945$, Characteristica $2$ autem numerum illi Logarithmo determinat, ut sit $575,8945$; si Characteristica esset $0$, foret numerus $5,758945$; sin denuo unitate minuatur ut fit $-1$, erit numerus respondens decies minor, nempe $0,5758945$; & Characteristicae $-2$ responde [TRUNCATED]