328 



BELL SYSTEM TECHNICAL JOURNAL 



1 I ^P "^ /Z, \2n«n-lfn-l " Un-\Vrv-l 



.70 



.65 



.60 



.55 



.50 



— -35 



.30 



.25 



.20 



Ap 



OAa 



ul-i + t;^_i 



2 \n+l M„_iZ)„_i — Un-lVn-1 



Un-\ + »n-l 



Wo + I'd 



0.5 I 



1.5 



2.5 



b - a yj^ TT X p 



Fig. 28 — Values of auxiliary functions 



/.W = 



**n— 1 T '^n— 1 



(11a) 



5.5 



