262 






PROFESSOR KELLAND ON GENERAL DIFFERENTIATION. 
th —2 293 ys vl eee, a 5-3 &e 
eS eee 3.4.5 m%0t  3.4.5.8.9.10ma¥ 
Po ae ad £2 
de mx 36 os mt oe 
re ES: 
2 a’ d x? 
dy, Oe Lv \ 2g, 3 dy, . 3 ni 
d x3 ve aa) du 42 dz Sg 72— 
x 3 Dy, Spates 
3°. Ba+ —2+-3 i eel hare es os WE Ceo 






43 i Bape 3% 
hen 923 pie Pay vee 
de/xny, _ §. 8a af 2.3 Sectesiae 
d x? 2.3 mat 3.8. Lm4 ge 
ee kd 9, 
et ie Le ae dx? 
aE a aE he 2 LS I 
d x3 22 m*x*} dx? 422 dz oe oe lama 16 
Bir (dee de 
434+ 4+6= = (4- ass y + &e.) 
4 xe 2 > m/—1\7? 4.5.6 m? x: 
Riis d? 
Safi Bs Ti Suppose 








| IS en a ee 
then ¥,=—2D ee oe 
a> zy, me ee 1 th ti f 
ae mig © =— ay, the same equation as for y,. 
C C, 3.4 
5°. Cote: +S fee = ee stat + &e.) 
at 4s 
he ad x2 
x 1 
Joo iT ag say Bigg 
Tag) Bel, Ae ee 
d x? —2°O°O fa? mat ae 
Veep L id5 9. 


Pus + (5 eC tok ee 3 dy, 3 15 
22 =m 
d x3 2r6) dx? 422 dx at 84375 — Sa 
———— 
