getting an empty figure for line plot of sine function

I'm trying to plot a sine function but I'm getting an empty figure

x=-10:10;
y = (sin(sin(pi*x))) / (pi*x);
zf(1) = figure(1);
za = axes;
zp = plot(x,y);
set(zp(1),'color','m','linewidth',3,'linestyle','-');

Answer 1

[Ameer Hamza]

Use element-wise division operator

y = (sin(sin(pi*x))) ./ (pi*x);
                    %^ use ./ instead of /

Read here: https://www.mathworks.com/help/matlab/ref/rdivide.html