Short Crested Waves 
2 
7 (x,y,t) = Acos(4%ay) . cos (+ Via x - St) 
eGyens qr vee VI—a? 
(8.1) 
(8.2) 
Coy 2 9T Vil-at/ 2m (8.3) 
7 (x,y,t) =4c0s (2% (Vi— a x tay)— ott) 
+A cos (2% (\i—a® x—ay)— Sz (8.4) 
7 (x,y,t) = @. 2. Ai cos (4% ( \l—dix+a,y)- or + Bi ) (8.5) 
Plate XXIII 
NTs) 
