MATLAB: How many values it display

Question

AF=1/N*(sin(N*(w./2))./sin(w./2));

polar(theta,AF)

h = plot(theta,AF)

x=(get(h,'Xdata'));

y=(get(h,'Ydata'));

l=rad2deg(x(y>=0.7 & y<=0.8))

In between 0.7 to 0.8 l has certain number of values. I need the number of values it display on command window

Answer 1

numel(l)