How do I plot a contour map in Matlab?

>> x=-6:0.001:6; >> y=-6:0.001:6; >> [X,Y]=meshgrid(x,y); >> phi=x.*y-y; >> contour(x,y,phi) Error using contour (line 48) Z must be at least a 2x2 matrix.

Answer 1

[madhan ravi]

EDITED

x=linspace(-6,6,1000);

y=x; 

[X,Y]=meshgrid(x,y)

phi=X.*Y-Y 

contour(X,Y,phi)

[madhan ravi]

If it works please accept the answer.

[cstibbards]

Matlab froze when I typed this in, it hasn't worked yet.

[madhan ravi]

Now try the edited code it worked for me.

[madhan ravi]

did it work @cstibbards?

[cstibbards]

Not yet, but I think its an issue with my computer running Matlab, not the code. Thanks.