X582¶
HARMONIC OF X500
X582 (HARMONIC OF X500) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {3, 6}, {283, 474}
Related Centers: X3 (CIRCUMCENTER), X6 (SYMMEDIAN POINT), X283 (-CROSS CONJUGATE OF X21), X474 (EULER LINE INTERCEPT OF LINE X)
Trilinears: \(f(A,B,C) : f(B,C,A) : f(C,A,B)\), where \(f(A,B,C) = \sin A + \cot D/2 \cos A\), cot \(D/2 = (e_{1} - e_{2} - 4abc)/[4 \operatorname{area} (a + b + c)]\), where \(e_{1} = a^{3} + b^{3} + c^{3}\), \(e_{2} = a^{2}(b + c) + b^{2}(c + a) + c^{2}(a + b)\)
Barycentrics: \((\sin A)f(A,B,C): (\sin B)f(B,C,A) : (\sin C)f(C,A,B)\)
Search Value (6, 9, 13): \(-6.555367493674\)