Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 125
CONIC SECTIONS. Ill 159. To complete an ellipse from an elliptical curve.Let AB be the given curve. Draw any two sets of parallel Join the points of bisection … v^F chords and bisect them (Prob in each set by lines meeting in C. Produce one of these lines till it meets the given curve in D. With C as y^VA \ ^M centre, and CD as radius, set off on the given curve the point A. Join AD. Through C draw a line HK parallel to AD (Prob. 3), also the ^ line CL…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
