Please how to give different color for each plot for this case

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

Answer 1

[Dyuman Joshi]

One way is to use rand. Colors here will be choosen randomly

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,'Color', rand(1,3))
    hold on;
end

Another way is to use binary vectors -

%this works here as we only 4 graphs to plot
%there are only 8 binary triplets available
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,'Color', dec2bin(i,3)-'0')
    hold on;
end

[Abdelkader Hd]

@Dyuman Joshi Thank you for your response, please I'm looking for how I can choose the colors by me

[Dyuman Joshi]

Which colors do you want to use?

[Abdelkader Hd]

Dear @Dyuman Joshi please if you have idea, I want the command to choose the color of the line and also the type of line (dashed line, dashed ...) and line width.

Thank you

[Dyuman Joshi]

2-D line plot

Check out this link