Modern instruments and methods of calculation : a handbook of the Napier Tercentenary Exhibition (1914)
Horsburg, E. M. (Ellice Martin), Napier Tercentenary Exhibition (1914 : Edinburgh, Scotalnd) · London : G. Bell · leaf 327
uated approximately, frequently with con-siderable accuracy, the latter as an area, the former as a departure, or asthe sum of the mean radii vectores of the small sectors represented on thepaper, multiplied by the radian value of the angle of the small sector. 298 SECTION H It is evident also that… … Fig. 9. results of experiments dealing with angular displacements, and, while intendedprimarily to simplify graphical calculations involving the methods of polarco-ordinates, it may also be used to give to beginners some elementaryideas in trigonometry. II. Collinear-point Nomograms (Nomogrammes a…
