VECTIS TROPRIETATE. 273 



vt neque maximum fit , neque minimum. Aft dubium 

 ftcile tolli poteft. Pooatur breuioris expreflionis caufa, 

 Bfin p-Afin. a~ N , Bcof (3 -h A cof. a z= M , atq^e 

 BE-f-CG — z. Quoniam iam pro calu dzzno, -^ 

 ~tang.$, erit fm.$-^==r atque coC^^L^ ', 

 •quos valores fubftituendo m formula fupra reperta, erit 

 pro cafu dzzzo, 2 — VM^ + N 2 . Sit porro (p iftud, 

 quod refpondet dzzzo, ~4^» atque fit (J> refpondens 

 aiii valori ipfius 2~4"-hy, eritque tum szzMcof. 

 (vjy-Hy )-+-Nfin.(v|i/ 4- y ) z= M cof . v[/ cof. y - M fin. 

 \p cof. y -f-Nfin.vJ-' cof y ■+• N cof vp fin. y * quae formula, 

 ob fin.^r_^p, et «£*(*=: y^Sbdj-J tranfit ia 

 cof.yyM^H-N^rzs. Quodfi ergo 2 refpondens </s 

 euanefcenti , quod fupra repertum e(l zVM^N', 

 indicetur per z\ erit z y co£yzzz. 



Cum itaque cof. y, quicnnque valor tribuatur 

 sngulo y, ^ femper minor radio , fiue vnitate , erit 

 generatim z <£ z', vnde z\ omnino , vti afferui , eft 

 maximum. 



Tom.VIII.Nou.Comm. Mm DE- 



