15C DE CALCVLO MOTVS 



\criim probc cft noMiidiim , in his tribiis acqiiatio 

 ribus tantum duas dctcrminationcs contincri , cum 

 in binis tcrtia iam fpontc includatur. 



XIX. 



Binas poQrcmas ita traiftemus , \t cum mcm- 



bra priora dilTcrentiari dcbcant , pars communis 



viv/Cpfm.w tanquam vnica quantitas fpcdctur , fic- 

 quc fict : 



cof. 4^ d. ^'^'«'Cpfin.oj-r/vj^ fin. v^. -r cv/Cl) fin. w - - aBcwfl'?' 



cof. fin. 0" fm. w (77^ — ~i ) 



fm.vf^r/. i'^v/Cpfin.w4-r/vpcof vp. ccr/Cpfin. w-— aBc/zrtT 



fin. fin. cr fin. <ii{^: — iz ) 



vnde d. rc</Cl)fin.u eliminando colligitur 



</\|^. wt/Cpfin.ojr-ccBiv/rt^/fin.o- fin.u fin.(0-vp)(,-^j-;/,) 



ficquc variatio lincac nodorum ita dcfinitur vt fit 



^V|,— ^ (-5-U-) 



Tude fimul variatio inclinationis innotcfcit ob j^^^ 

 zz. f~j- fin autcm cx illis binis formis membrum 

 vvd<^fm.!ji climinctur , obtinctur 



</. i-iY/(p fin.co— — aBi7/r/rfin cr fin.w cof. (^-vpj^;^. - ^) 



quae iam cum prima cxuendo angulum u compa- 

 rata pracbct 



cofwrt^.viv/Cl^-^w .«.i uriWCp^ aB':7/^//'(cof o-fin. (^-v|^) 



- fin. 0- cof w cof (0 - vp)j (,;,- p- ) 



liu. 



