X203¶
X1-CEVA CONJUGATE OF X16
X203 (X1-CEVA CONJUGATE OF X16) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {11, 14}, {12, 17}
Related Centers: X1 (INCENTER), X16 (2nd ISODYNAMIC POINT), X11 (FEUERBACH POINT), X14 (2nd ISOGONIC CENTER), X12 ({X), X17 (1st NAPOLEON POINT)
Trilinears: \(f(A,B,C) : f(B,C,A) : f(C,A,B)\), where \(f(A,B,C) = u(v + w - u)\), \(u = u(A,B,C) = \sin(A - \pi /3)\), \(v = u(B,C,A)\), \(w = u(C,A,B)\)
Barycentrics: \((\sin A)f(A,B,C) : (\sin B)f(B,C,A) : (\sin C)f(C,A,B)\)
Search Value (6, 9, 13): \(1.122831801616\)
Alternate Coordinates1 form
Trilinears: \(1 + \cos(A + 2\pi /3) : 1 + \cos(B + 2\pi /3) : 1 + \cos(C + 2\pi /3)\) (Joe Goggins, Oct. 19, 2005)