\m ŒUVIIKS DE KF.UMAT. - 1" l'MSTlE. 



lùliu'iitiir siiigula hoinoiioiioa // in À "m /s : illiiic tict 

 Aq. aN|ii;ile /»' in A-", 



. I in A" ;vqiiiilo />' in J>, 



istino 



ii|('()(|iit' (|iia'slio |)or iiyperbolos et pai'aholcs iiitorscclioiiciu pt'iti- 

 ciotiir. 



Kxponalur ciiiin rocta quanis positione data OVN ij/'g'. H8), in qua 

 dotiir puiicluni 0. Sint rectie datœ li et D, intcr ()iias dua' médian pro- 



Kig. 88. 



[tortionales inveniendai : ponatur recta OV aNjuari .1, et recta VM, ipsi 

 (>V ad rcclos angnlos, œquari E. 

 Kx priori œqualitate, qua 



iq. aequalui' /? in /i", 



constat pei" punctiim tanquani verticein describendani parabolen, 

 cujus rectum latus sil /}, diameter ipsi VM parallela, et applicata* ipsi 

 ()V <[ parallelœ >>; transibit igitur ha>c parabole per pnncfuni M. 

 Ex secunda a'qualitatc, qua 



/; in /> ;i'i|n:iUii' ( in E, 



suniatur punctuni ubi libet in recta OV, ut N, a quo oxcitelur perpen- 

 dicularis NZ, et fiai rcctangulum ONZ aequale rectangulo />' in /). Exci- 

 tctur eliam pcrpendicularis OR. CJrca asymptotes UO, OV describenda 

 hyperbole per punctum Z, ex nostra methodo locali, ibiiiitur posilione 

 et transibit per punclnm M. 



