An introduction to projective geometry and its applications; an analytic and synthetic treatment (1905)
Emch, Arnold, b. 1871 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 232
(34) of the forces i, 2 and 3, 4 by means ofthe polygon of forces (Fig. 92b) and the funicular polygon(Fig. 92a). Then construct the funicular polygon of the result- APPLICATIONS IN MECHANICS. 219 ants (12) and (34) with O as a pole and with its first side pass-ing through A. Every funicular… … Fig. 92a. Gollineation. Now it is clear that the polygon passing throughA, C, and B, and formed by the reactions at these points, is also afunicular. It is therefore collinear with the first polygon (o, 0^12,oi234). Projecting the points C and B from M upon the funicu-lar sides (oi2) and (oi234),…
Geometry, Projective · Geometry, Analytic
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