44 OBSERVATTONES DE SINGVLARI 



quare fi >] iz 2, n: i fiet 



fin.2A'+fin.3A'+fm.4AV..+fin.{2+«)xz ~ "—— 



fin iX 



fi 7v m 2 j ~ 3 erit 



fin,t±*2.Afin ilttL^j; 



fin.2.v4-fin 5A:+fin.8A,'...+fin.(3«+2)J?-— ^^^ '-— 



nn.\x 



fi vj — 3 ; = I erit 



fin. ^±?. A' fin, "-*-'3r 



fin.3Jtr-i-fin-4^'4-fin.5r....+fin.(«-f3)*-— l-i.-J -1-i — 



fin.sJC 



fi 'ki i::;'3 ; d — 2 erit 



{in.t±^xC\n±±-'^x 



fin,3A'-ffin.5A:+fin.7A'..4-fin(2«4-3)-'^= --r — '—- — * 



fin.A? 



<?. Pro cafu quo numerus terminorum in pro- 



greflione nofira fiatuituc iafinitus j habebitur pofitO' 



V — m z 



cof ' — *" . z 

 Cn.s-|-fin.(w+i);s4-fin.(;w-|-2)«-j-etc.— — —l—.^ 



2fiii.r« 



Hinc fi «; — I 



fin.2-}-fir».2S4-fin,3is4-fin.4S etc. zr icot.5« 



j 



fi ;;j=2;fin.5;4-fin.3--f-fin,5s4-etc. 1^-7; — 



/. /. /. cof. '5f 



fi /«:=3; fin s4-fin.45;-4-fin,7.s4-etc. ——z — ;- 



2fin.i2 



/. y. .. cof.z I 



fi w — 4; fin. 5:4-fin. 5«-i-fin.p2-}-etc.— — r r-;: — J 



2fin.25; 4fin.«* 



Deinde es conribiDatione harum progrcfljonum , aliae 



pro- 



