A caveat is that at the boundary, the mapping you describe becomes
non differentiable (the determinant of the differential blows up to
infinity),
so it's going to be painful for implicit_plot to work.
That being said, the following tweak runs ok but it's not ex
Hello,
I have been usage Sage for a few months. Up to now, plotting,
polynomials, and arithmetic functions have been running fine.
Now I'm trying to use the symbolic calculation skills of Sage, but ...
I am getting the error : "unable to simplify to float approximation"
when running, for ins
