Hello,
I am trying to sketch a rounded square with the parametric curve functionality using x(t)=2.1sign(cos(t))(abs(cos(t)))^(1/2) and y(t)=2.1sign(sin(t))(abs(sin(t)))^(1/2), and i get a warning message which i assume is related with the sign function because the warning doesn't appear when it is not included in the above parametric relationships.
Do you have any clue why this happens? Does anyone has experience with the sign function Thanks miko