CORPORVM RIGIDORVM. 237 



pcnd;imu5 : f()rfitaii enim hinc iam via commodior 

 felc o:r-ret hoc iiegotuim conficiendi. Cum igitui* 

 ill.irum litteraruin valores inuenti fint ifti 



Y =zpp(i~col.(p) -^coi'(p ; ^{~pq(i-coi.(p)-rCiu.(pi 



¥"-pr{i — cof.Cpj-i-^fiii.Cl) 



G=:pq{i-<:oi:.(pj'^rCin.(pi Q-qqii-coi^p^-^-coC.^p:, 



G"~^/r(i-co(.(p)-pfin.(p 



B=pr{i- (in.(p)-qco(.(^ ,• H'i-?r(i -cor.(p]-f-prin.Cl);- 



H" = r /- ( 1 - coi: Cp) -i- col Ct) 



ob pp-hqq-\-rr)=i erit F + GM- H''— i + 2Cof.C|). 

 Tu.n ve>) inter reliquas fex harum litterarum binae 

 egrcgiae intcr fe conueniunt , vnde fequuntur fequen- 

 tes relitiones 



G + f — 2p q^i -coC Cp) 

 G — V — 2 r fin. (t) 

 H + F" 13 2/)r(i - cof Cp) 

 — H 4- F" — 2 y fin. (p) 



H'+G"— 2 ?r(i -cof. Cp) 

 \M -Q" — 2 p fin. Cp. 



hiiic igitur porro erit 



GG-F'F'-F"F"-HH = H'H'-G''G"-4p^rfin.Cp(i-cof.Cp> 



Pnieterca vcro h nc eiusmodi combinationes formari 

 poterunt , in qaibus folus anguhis Cp infit 5 cuius^ 

 movji furt 



!£^r^»;,:^.= ,(, + coi.0) 

 ^V:tS— = = ( . + cof. $;. 



G g 3 Caete- 



