Selected propositions in geometrical constructions and applications of algebra to geometry. Being a key to the appendix of Davies' Legendre (1875)
Legendre, A. M. (Adrien Marie), 1752-1833, Davies, Charles, 1798-1876 · New York, Chicago [etc.] A.S. Barnes & company · leaf 21
s drawn from twogiven points to any point of a given line, is the least possible when theselines are equally inclined to the given line. Demonstration.—Employing the same construction as in the lastfigure, let P and Q be the given points,and PR and QR equally inclined to AK;also PS and SQ unequally… … PROPOSITIONS FEOM LEGENDRE. 15
Geometry
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