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 236
DE; BE, BF; EC, FC; and it is obvious that theresultant of each of these pairs passes through j; hence theresultant of the whole system passes through y. Now as theresultant of the given system acts in a right line, and as a, /?, yhave been independently shown to be points on this resultant,these… … sides of a hexagon inscribed in a circle lie in a right line, is easilyexhibited as a case of thefunicular property in § 52.Following again Minchin, loc.cit., let the lines DA, EB, FCin Fig. 95 be lines of actionof three forces, P, Q, R, suchthat if P is resolved at A intotwo components along…
Geometry, Projective · Geometry, Analytic
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