ex nla V artationis Cu rvatura. 481 
ariam. 

“pdz) = 
co. 2. Ot wet curvature T= 
a— 

ss =, evadit ws Td 



2a42Z— 
=r r theorema Les az 
=f 2az —2’,, per theo —___— ae ee 
~«& > p Vie ie ‘igi Tdz ar: 
“per integrationem ifs ¢ gy ue dp —, fi arcus’ ille 
V 20% — 22 Vio 
conftans C=o, ceteri funt oy eorumque finus et cofinus, 
quo me) Paes, pa ety (= | per) = Le. = 
2az— 

= eequatio pro ee ordinaria. 
NY 
THEOREM QA TI. 


* Manentibus antea adhibitis denominationibus erit ff 
yt J Tax 
ia AT 
VI— ae ; 
dx 
Quoniam 4 = “= —dp, erit dividendo: per Vie — p’, ae 
-~_#_, Propter 1 : /1—p7:: CD(R):CF=RV7-(, 
. Veg 
fed dz: dx: Vde > Tdx, que fluxo eft ipflus DE, quare- 
me [Var unde CF= y+ [Tay qua pro RV/1 — #? fubfti- 




dp 
tuta, prodit ———— =. 
ae eh aa Vip 
Cor. 1. Quantitas dy+ Tdx femper eft perfecte integrabilis.. 
ce ddueV 3 —p Mi pdx a id pax - 
Nam Tay = a ae et dy= ae unde ae 1 gsi 
Vi dsVi-p 
eS et integratione y + f Tar= — = ane * 
Core. 
