ABSTRACT
Rational quadratics may be “pieced together” , so as to form composite curves that can be much more complex than single conics can be. Such curves are called conic splines. Where two pieces, or segments, of a conic spline meet, the curve will be of a certain smoothness: it could be analyti cally differentiable: C 1, C2, or it could be geometrically smooth: G1, G2. The different cases are discussed in this chapter.
