It is concentric circle figure. Add
axis equal
to see it more clearly.
Question
x = linspace(-10, 10, 100);
y = linspace(-10, 10, 100);
[X,Y] = meshgrid(x, y);
t2= X.^2 + (Y.^2);
contour(x,y,t2,'showtext','on');
When I run the above code in octave, I am getting concentric elliptical figures in contour plots. I expected to be a concentric circle figures . What is wrong in this?
Solution
It is concentric circle figure. Add
axis equal
to see it more clearly.