3IO DE PRESSIONE FVNIVM 



qiine deniio diffcrentiata prncbct 

 fl'/j/nrt'>' -4-/' n «'/-hn r/.v flne 



o = (ipj npd x-\-ptn d X -+- n ^ .V 



qiiae pcr dp diuira poneiido dp—qdx dat 



o —fnpdx -{- nj_Lrtfii 



^'\-\i\t vnlorem litterae II elici oportet. Qno autem 

 hoc facilius ficri qucat , ftatunmus pro pcmiltima 

 aequatione /11 p ^ x — O , fietque dO ~U p d x 

 ideoque Udx — '^-^, ex quo rcfultabit haec aequaiio 

 a figno integrali libera : 



o — (^ d p -\- i^ { X -\- p p) 



vnde fit 



djb p dp _ 



cuius intcgrale eft 



/0 — —/V{i-{-pp)-h/C idcoque 

 0=---^ -fUpdx. 



lam hncc acquntio diflFcrentinta praebet 



Cp dp 

 TL p d X — — ; hiucquc tandcm 



n- ""^ 



J.1. — 3. 



dx{ i-\-PPT 

 §. 6 Coi.flnt nutem , fi radius ofculi nodrac 

 curuae in pundo Y ponntur — r , fore 



dp 



Tnde 



