X3547
EULER LINE INTERCEPT OF LINE X69X_155
X3547 (EULER LINE INTERCEPT OF LINE X69X_155) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).
Trilinears: \(f(A,B,C) : f(B,C,A) : f(C,A,B)\), where \(f(A,B,C) = \sec B \sec C + 2 \sin B \sin C\)
Barycentrics: \((\sin A)f(A,B,C) : (\sin B)f(B,C,A) : (\sin C)f(C,A,B)\)
Search Value (6, 9, 13): \(-80.404228468869\)
▸ Incident Central Lines11 lines
{2, 3}, {68, 1176}, {69, 155}, {343, 1181}, {498, 1040}, {499, 1038}, {577, 2548}, {590, 1579}, {615, 1578}, {1060, 3086}, {1062, 3085}
Notes
As a point on the Euler line, X3547 has Shinagawa coefficients \((E + 2F, -E)\).