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 55
h of the radiat-ing planes as follows :— (I.) Measure the ordinates as if fortaking the areas of the several planes,but instead of the ordinates them-selves compute their half-squares,and treat them as if they were theordinates of a plane curve of the same length as the ligure.The result of this… … Example. (See fig. 103.) No. of Planes Moments of theRadiating Planes 105110115120125 Multipliers Pioducts Q _ angular interval3 8