C01P0AV31 RIG DORVAI. 197 



dJteriTJiari pifT.nt. Priino c.iim tcrnae coordinatnc 

 /, g, h deier.niu.Mt traiisiationcm par.di 1 in z , 

 qu.ie er:i> pciiitjs ;i nodro arbitfio pcnJeit. ]}ein- 

 dc, qao nodociin \wz corpus circa hoc punclDm i fue- 

 r't interca coiuierdim , eius fitus per ternos anaiildS 

 >1, "^^ 1"» p(-'nitus detcrmiiiatur; (umto cnim ia l;ca 

 iuitiali elemjnto corporis quocunc]ae Z, tuius pofi« 

 tio per tcrnas coorJinatas j), q^ r^ detinitur, id in fita 

 trani>l.'.to rcpcrietiir in pnnvflo z , cuius pofiiio pcr 

 iilas tcrnas coordmatis detinietur: 



X :=: f -\- ¥ p -\- F'^-4- ):" r 

 y ~g-i-G p-i-G'!/'^ G" r 

 X -l -^ll p -'c- W q -i- II" r. 



§• 16. Quo autem magis conuincamur , per 

 has formulas omnia qiuie aJ tranblationem pertine.it 

 pcrfcdj detcrminari, totnm negotium etiam fequeuti 

 moJo ablolui poccll. Concipiamus in flatu ini;iali 

 praetcr pundnm Z aliud quodcunque Z' , in fii^ura 

 quidcm non ex.^r^ififim , cuius locus his coordinatis 

 definiatur p', /, r'. Hmc autem puniflum transla- 

 tum fic in z', cui refpondeant coordinatae A*', j', zf, 

 quarum ergo valores ita exprimentur 



x' r: / -f- F /;' H- F' r/ -f- F" r' 

 y =:g-\-Gp' -h G' y' -H G" r' 



z!=zh-{- U p' 4- II' ^' -i- H" r'. 



Quibus pofitis natura corporum rigidorum pofluTat i 

 \t inreruallum in fitu traaslato z z' ne.]uale (it in- 

 teruallo Z Z^ in fitu initiali , qnandoquidcm iii his 

 corponbas omnia interunlla inter bini corani pun- 



Bb 3 aa 



