Plot for different value of a

      x = [-2:0.1:2];
      z=x.*(a-x^2);
    plot(x,z)
I want to plot(x, z) for four values of a = .5, 1, 1.3, 1.95. How to code it without writing same programme for different a four times.

Answer 1

[John Petersen]

x = [-2:0.1:2];
a = [.5, 1, 1.3, 1.95];
figure;
for i=1:length(a)
    z = x.*(a(i)-x.^2);
    plot(x,z);hold on;
end

[ABDUL RAZAK BIN NAINA MOHAMED]

how to give different color for each plot for this case