unaccurate plot of a circle
I want to plot a circle centered at the origin and radius sqrt(2). When I type:
in sage 5.4, the graph obtained is really unaccurated.
However, for the circle of radius sqrt(3) works fine. Does anybody know why?
Of course I know there are several ways to plot a circle, but i want do do like this for showing my pupils some applications of integral calculus.
I think it is important to have a "plot" command working properly, since it is extensively used in teaching.