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searching for Trilinear coordinates 9 found (83 total)

Apollonius point (470 words) [view diff] exact match in snippet view article find links to article

Centers the circle E is the called the Apollonius circle of △ABC. The trilinear coordinates of the Apollonius point are a ( b + c ) 2 b + c − a : b ( c + a

Brianchon's theorem (607 words) [view diff] case mismatch in snippet view article find links to article

Seven circles theorem Pascal's theorem Whitworth, William Allen. Trilinear Coordinates and Other Methods of Modern Analytical Geometry of Two Dimensions

Trilinear polarity (757 words) [view diff] exact match in snippet view article find links to article

triangle △ABC. Let P with trilinear coordinates X : Y : Z be the pole of a line passing through a fixed point K with trilinear coordinates x0 : y0 : z0. Equation

Harcourt's theorem (361 words) [view diff] case mismatch in snippet view article find links to article

(Tours) & J. de Gigord (Paris), p. 750. Whitworth, William Allen. Trilinear Coordinates and Other Methods of Modern Analytical Geometry of Two Dimensions

Neuberg cubic (1,266 words) [view diff] exact match in snippet view article find links to article

special points which are also triangle centers. The equation in trilinear coordinates of the line at infinity in the plane of the reference triangle is

Norman Macleod Ferrers (647 words) [view diff] case mismatch in snippet view article find links to article

had four sons and one daughter. 1861: An Elementary Treatise on Trilinear Coordinates (London), link from Internet Archive 1871: Mathematical papers of

De Longchamps point (699 words) [view diff] exact match in snippet view article find links to article

JSTOR 2311750, MR 1532529. Coxeter, H. S. M. (1995), "Some applications of trilinear coordinates", Linear Algebra and Its Applications, 226/228: 375–388, doi:10

Cubic function (1,746 words) [view diff] case mismatch in snippet view article find links to article

Whitworth, William Allen (1866), "Equations of the third degree", Trilinear Coordinates and Other Methods of Modern Analytical Geometry of Two Dimensions

Conic section (9,165 words) [view diff] case mismatch in snippet view article find links to article

322–325. Brannan, Esplen & Gray 1999, p. 17 Whitworth, William Allen. Trilinear Coordinates and Other Methods of Modern Analytical Geometry of Two Dimensions