THE master of Sidney Sussex College, Cambridge, here provides a “key” to the examples in the new edition of his “Treatise on Conic Sections by the Methods of Coordinate Geometry,” published recently.

Learn all about parabolas in conic sections. We will discover the basic definitions such as the vertex, focus, directrix, and axis of symmetry. We will also take a look a basic processes such as ...

Learn how to write the equation of a parabola given the vertex and the directrix. A parabola is the shape of the graph of a quadratic equation. A parabola can open up or down (if x is squared) or open ...

THE merits of this book are so well known that comment is almost needless. Nearly thirty years have passed since it was first published, and since then a few additions have been made from time to time ...