Veblen, Oswald, 1880-1960, Young, John Wesley, 1879-1932 · Boston, New York [etc.] Ginn and Company · leaf 261
he straightedge alonesuffices for the solution of any problem of the second degree in this plane.The discussion immediately following serves to indicate briefly how this maybe accomplished. We proceed to show how this theorem may be used in the solutionof problems of the second degree. Any such… … that the given pairs of homologous points all consist of distinct points(otherwise the problem is linear). In accordance with Theorem 5,we suppose given a conic (in a plane with the line) and assumeknown the intersections of any line of the plane with this conic. Let0 be any point of the given…
Geometry, Projective
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