X2660¶
TRILINEAR POLE OF PU(83)
X2660 (TRILINEAR POLE OF PU(83)) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {410, 823}, {4, 1248}
Related Centers: X2659 (CROSSDIFFERENCE OF PU(83)), X410 (EULER X29-1st-SUBSTITUTION POINT), X823 (ISOGONAL CONJUGATE OF X822), X4 (ORTHOCENTER), X1248 (ISOGONAL CONJUGATE OF X1047)
Trilinears: \(f(A,B,C) : f(B,C,A) : f(C,A,B)\), where \(f(A,B,C) = (\sec B + \sec C)/(\sec^{2} B + \sec^{2} C - \sec^{2} A + \sec B \sec C - \sec A \sec B - \sec A \sec C)\)
Barycentrics: \((\sin A)f(A,B,C) : (\sin B)f(B,C,A) : (\sin C)f(C,A,B)\)
Search Value (6, 9, 13): \(-7.364796987236\)