One of the mysteries of the English language finally explained.
A figure formed by the intersection of a plane and a right circular cone. Depending on the angle of the plane with respect to the cone, a conic section may be a circle, an ellipse, a parabola, or a hyperbola.
- ‘For example he shows how to deform a circle into an ellipse and proves other results on deforming conic sections.’
- ‘These three trajectories are known as conic sections, as they are also the curves produced by cutting a cone along different planes.’
- ‘The solutions to the equations describing the motions produced by this law are called conic sections - ellipses, hyperbolae and parabolae - which you get by intersecting a plane and a cone.’
- ‘He continued his study of mathematics and wrote a dissertation on conic sections for his doctorate in mathematics which was awarded in 1879.’
- ‘He worked on conic sections and produced important theorems in projective geometry.’
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