-4.0 

 -3.0 



n -0. 



° -0. 



0.04 0.06 0.1 0.2 



0.4 0.6 1.0 



Fig. 26 — Undriven line wave amplitude versus (ai — a2)/c with equal phase 

 constants and ex constant. 



-100 

 -60 

 -40 



-20 



-10 



-6 

 -4 



-1 

 -0.6 

 -0.4 



_i 



o 0.2 



(\J 



0.4 



0.6 



1 



40 

 60 

 100 



G5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4 5 50 5.5 6.0 6.5 7.0 

 CX IN RADIANS 



Fig. 27 — Driven line wave amplitude versus ex, for equal phase constants; 

 (ai — a->)/e as a parameter. 



688 



