L                       Get length for catenary
Summary                 summary function
catenary                Creates a catenary object
catenary-class          Create a class for catenary
ctesiphon               Coordinates of external and iternal edge of the
                        Ctesiphon
fittedCatenary          Creates a fittedCatenary object
fittedCatenary-class    Create a class for fittedCatenary
minmax                  Method to get min and max of catenary
plot                    Set generic plot
vertex                  Method to get vertex for catenary
