CONIC allows you to construct a conic section such as 
an ellipse, hyperbola, or parabola.

Create a conic by choosing from the following options:

5 COND (five conditions) - to create an ellipse, 
hyperbola, or parabola, by indicating two, three, four, 
or five points through which the entity will pass.

6 COEFF (six coefficients) - to create an ellipse,
hyperbola, or parabola, by entering values for the six
coefficients of the following equation, which is the 
general quadratic representation of a conic. 

       A*x^2 + B*x*y + C*y^2 + D*x + E*y + F = 0

PARABOL - to create a parabola by defining the directrix,
the focus, and the entity's start point and endpoint.

ELLIPSE - to create an elliptical arc by defining
the length and orientation of the major and minor axes, 
and the start, end, and center points of the entity.
