The conic sections as originally conceived in ancient Greece were "slices" of two cones tip-to-tip. Slicing this figure in different ways produces each of the four conic sections - Circle, Ellipse, Pa...The conic sections as originally conceived in ancient Greece were "slices" of two cones tip-to-tip. Slicing this figure in different ways produces each of the four conic sections - Circle, Ellipse, Parabola and Hyperbola. This chapter will examine the Circle and the Parabola.
