Excerpt from Elements of the Conic Sections: Translated From the Latin Original, for the Use of Students of Mathematics Pin G, brought close to the side FE of the ruler; then; the string being kept uniformly tense by the pin, the side DE of the ruler is moved along ab: and thus the point of the pin, as it moves onwards with the ruler, des cribes' Upon the plane a line, named the PA rabola. This line may be extended to a dis tance from the pomt C, exceeding any given distance, provided the length of the side FE of. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.