Equation

equation(Line | Circumference | Conic | Plane)

equation(Line | Circumference | Conic | Plane, List)

Given any object of the above, returns its equation with the usual variables $x$, $y$ (and $z$).

Given any object of the above and a list, returns its equation with the usual variables $x$, $y$ (and $z$) replaced by the values in the list.

Line, Circumference, Conic, PlaneConic