The naval architect's and shipbuilder's pocket-book of formulae, rules, and tables and marine engineer's and surveyor's handy book of reference (1884)
Mackrow, Clement · London, C. Lockwood and co. · leaf 25
eaarts shall be in a given direction. (Fig. 38.) Let A and C be the two points, ab the given tangent, andbc a line parallel to the given direction of the axis of the para-bola, cutting the given tangent in b ;diNide ab into any number of equalparts, and through the points ofdivision draw lines… … Fig. 89.
