Hi Im new in matlab and i had with some problems working on the saddle monkeys graphing, can anyone tell me where Im wrong and fix for me. I pressed fix but did not work.

[Atsushi Ueno]

Yes, it does work.

x = -100:10:100;
y = -100:10:100;
[X,Y] = meshgrid(x,y);
Z = X.^3 - 3 * X .* Y.^2;
surf(X,Y,Z);

[Atsushi Ueno]

Would you please point over or click the exclamation mark displayed?

Is there any error messages displayed?

[Phuc Nguyen]

[Phuc Nguyen]

thanks a lot for your attention @Atsushi Ueno

[Atsushi Ueno]

You need definition of variable min_x, min_y, step, max_x and max_y. That's why your program does not work.

Would you please add following example at the top of your code?

min_x = -100;
min_y = -100;
step = 10;
max_x = 100;
max_y = 100;

[Phuc Nguyen]

oh okay thanks a lot for your helping.