QUICKEST DESCENT. 



11 



+ li£^££iL=-|-12p4H.36Ap« + (48 B+ 24 A«);^ 

 + (60AB4-60C)p7 



-f(72AC4-36B«^ 72D)p». 



— 3/?*= — 3/?». 



— 9;?4= — 9p4. 



And by equating the Coefficients of the 



3 11 



same powers of p, A = — — , B = ._ A* , C = 



385 



648 



A». 



Therefore , =p _ ^p^ + iL A^P^ _ ^ A3p^^c. 



And when » = 2, and m = a = 1 , the curve 

 takes the following form. 



