LAMIXARVM ELASTICARVM xu 



/ I' _■ » 



l x ~+" "i.-- ♦j +_ Hi.2... l .,.';.7^7» -r- etc - ) 



g/ X , J { . J_> v 



\ /-T-2.:. + .sJ s "T"i.a- 4 .«.i.tf.7.».p/« ~+" etC ' / 



m qua fnpcrclt determinandus valor conftantis quantitatis 



E: hunc in rmem uotabimus , quod fadta x — DB — /, 

 fiat _y — o , cx quo fequitur. 



g — _,. X ( I + — Jl- /4 -H ,.,.., .,.''. - -7-r.-7-t-ctc.): 



f l , / 5 _ ___ V 



( J +:.j...j; i "l":.:-«.i.6.,. M jH- CtC J 



Denique faciendum clt , vt ipia quoque quantitas j eli- 

 minctur : id vcro efficitur co , quod pofita rurfus x zzi 

 DE ~/, fit dy — o ; hinc fcilicet fit 



£=-**( -7777- -H 777—7-777—7 -f- etc.): 

 / — 1* ; s n 



( 1 -f- ,4 -4- r -h etc. ) 



\ 1 , . 1 • 3 • ♦ J * ' |.2'J •+•3*6.7 lj a ' ' 



Quod fi itaque ambae aequationes intcr fe comparentur , 

 noua iiuie orietur , cuius ope littera /" determinari poterit 

 pcr mcthodum confuetam approximationum j erit nimi- 

 raxri 



( * + 7-7-.TT77* -+- 777Tr.7^-77777J. "+" etc - ) : 

 . /4 ;» . \ . 



( ~ -+■ ....,-T7T 4 + 77777:7-777. » • $;• "+■ etCl / — 



v 77777+ + 777 77". ;". 7.77» -+" *. $ . + .77777.8 .9 i..uj I1_ T-etc.j: 

 ;+ ;» \ 



( " -+- ■..•;.+ j+ -+" , • , . • * . ; . 6777T7 "+" ctc - /» 



fiue proxime 1 -77^4-^^7 = aut rurfus proxime 

 /♦ — £ t atque adeo f—lV*. Sic igitur omncs quanti- 

 tatcs arbitrariac iam fiint detcrminatae fimulque curua om- 

 ni qua lubct accuratione ddcripta. Progrediamur nunc ad 

 longitudinem penduli ifochroni dcterminandam , qui fco- 

 pus noilcr cft praccipuus. 



§• 3 



