clear
clf

np = 20;
x = linspace(-1, 1, np);
f = zeros(np, 1);
for i = 1:np
   f(i) = example(x(i));
end

plot(x, f, 'o-')
grid on
title('Graph of a function that uses conditionals')
xlabel('x')
ylabel('y(x)')


function y = example(x)
    if x > 0
        y = x;
    else
        y = x^2;
    end
end