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 268
l links EC = FD, APPLICATIONS IN MECHANICS. ^SS so that lEAC- ZFAD=-. 2 From plane geometry there fol- lows easily ZEAF= ICAD; i.e., that the two rhombs are similar;further, that PA A. AB, no matter how the linkage may bedistorted. This linkage realizes, therefore, a variable right tri-angle PAB… … 0- Fig. 112. This linkage may be used to solve mechanically two interest-ing cases of collineations in a plane. If by two PeaucellierInversors the points A and B are forced to describe the same 256 PROJECTIVE GEOMETRY. Straight line s, in which an arbitrary point is taken as the origin of a…
Geometry, Projective · Geometry, Analytic
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