158 OBSERrJTIONES 



a—b 

 a—b g — b 



ir^ r X b dx cx"-^ fx b dx 



gralibnserit/^a' ^ s-^cJ —^-^ — atqiie s^^y J ^ZIJ' 



/.v^ A-.m p-.m 

 Ab hac ferie lam fubtraho hanc -— -\- -rj-rj/^T^^^lj 



m[g — h) 



etc. cuius fumma fit /. Multiplicetur per ^-'^' ^' erit- 



m'£-^b) mjg-i-ih) 



'"ts-A) _jhxf" fhx ^b' fhx' 



}ng m{g~\-h) ?n(g-\-2h) 



m{g — h) mg-h 



Sumtisque difFcrentiahbus fiet ^D .v '^ tzzdxifx '' 



mg — /; 

 m[f.-i-b )—h m_(f-t-; fc)— fo ^^, h j 



m(g—h ) 

 fm fx * dx 

 Qiiare habebitur t ::^-—;;^£irh[J Z~^r~- Weoquc 



o— & mg— h 



c fx' _J'Ji /"-L-'!-^'' c w 



s-t:=: -— ^i — - - , m^g^_b)J _ ^m • ^iH^ti a- 



bX-i,- l—XDX h ' 



dlio vero ita debet fieri , \t a termino indicis m feriei s 

 fubtraliatiir tcrminus primus feriei t, ct a tcrmino in- 

 dicis o.m illius, tcrminus fecundus huius lcrici et ita 

 porro. 



§. 14.. Qiio noftras feries logarithmicas eruamus, 

 fit a—b et g = b. Quo fado crit s — |/,Sc — Jr / ,^ 

 / imx—^dx_fl I 



