The mechanical engineer's pocket-book. A reference-book of rules, tables, data, and formulæ, for the use of engineers, mechanics, and students (1910)
Kent, William, 1851-1918 · New York, J. Wiley & sons · leaf 98
and the focus, or A e = A F.Any line parallel to the axis is a diameter.A straight line, as E G or D C, drawn acrossthe figure at right angles to the axis is adouble ordinate, and either half of it is anordinate. The ordinate to the axis E F G,drawn through the focus, is called the para-meter of… … K e L E A G n/ F \ J 0 J o \™ 1 0 D Bb «^ C Fig. 55. Abscissae of a parabola are as the squares of their ordinates. To describe a parabola when an abscissa and its ordinate are given (Fig. 55). — Bisect the given ordinate B C at a, draw A a, and then a bperpendicular to it, meeting the axis at b.…
Mechanical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
