//caption: find phase angle
//Ex8.12
clc
clear
close
Y1=4//vertical pattern
Y2=8//vertical pattern
o=Y1/Y2
Y=asind(o)
disp(Y,'phase angle(in degree)=')
Y3=4//vertical pattern
Y4=4//vertical pattern
oo=Y3/Y4
Ya=asind(oo)
disp(Ya,'phase angle(in degree)=')