Coefficient of End- Correction. 255 



Then 

 B [-408379 x -364128 - (-358197) 2 ] =x[lof -364128 - ^ of -358197] 



«D [-30140 x -364128--33305 x -358197], 

 or B(-020397) =X(-0129284) + D('00955). 

 Also 

 C[-408379x -364128- (-358197) 2 ] =X [^ of -408379- * of -358197] 



-D [-33305 x -408379--30140 x -358197], 



or C(-020397) = -X(-005249)-D(-02805), 



or B= X('63384) + D(-4682), 



C=-X(-25734)-D(l-3752). 

 Then 



D(-30140 x -4682 - "33305 x 1-3752 + -32159) 



=\( 3 - - -30140 x -63384 + -33305 x -25734^ 



or D(-00470) = \('00181) 

 or D=X(-385). 



The fixed value of the linear expression (v) is equal to the 

 potential at the end z=~ L, that is = l(L + k) where k is 

 the coefficient required. But L + k is proportional to 



(V,= .. L ) 2 



that is to say, making 



i 



I 0>i Jn on 



Jl 0>i Jn 0>i 



a minimum for a fixed V*=_l corresponds to finding the 

 maximum k. 



Each term introduced will increase this maximum and 

 therefore the k we obtain is less than the proper value, 

 contrary to the case where we gave the current a fixed value 



