the attached pciture is a rotated cylinder which is plotted with fimplicit3 command in the interval 0 1500
the problem is I dont know why the surface of cylinder is not continuous? I checked the shape in another software that plot it continously but in matlab I have some problem.
in another screen shot you see if I changed the constant of function the plot would be continuous
here is the command i used for the plot with problem:
f = @(x,y,z) (z-x).^2+(x-y).^2+(y-z).^2-1000000;
>> interval=[0 1500];