X453¶
POINT ALSHAIN
X453 (POINT ALSHAIN) constructed on acute reference triangle \((a, b, c) = (5, 6, 7)\) with unit baseline AB = \(1\).¶
Constructed Elements
Central Lines: {2, 3} (Euler line), {46, 1800}
Related Centers: X2 (CENTROID), X3 (CIRCUMCENTER), X4 (ORTHOCENTER), X46 (-CEVA CONJUGATE OF X1), X1800 (INVERSE MIMOSA TRANSFORM OF X155)
Trilinears: \(f(A,B,C) : f(B,C,A) : f(C,A,B)\), where \(f(A,B,C) = (\cos B + \cos C - \cos A)^{2}/(\cos B + \cos C)\)
Barycentrics: \((\sin A)f(A,B,C) : (\sin B)f(B,C,A) : (\sin C)f(C,A,B)\)
Search Value (6, 9, 13): \(1.182719776028\)
Notes¶
As a point on the Euler line, X453 has Shinagawa coefficients \((2\$aS_{B}S_{C}\$+\$aS_{A}\$(E+2F)-2\$a\$S^{2}-2abcF, -\$aS_{A}\$E+2\$a\$S^{2}+abcE)\).