Interactive Applet |
You can move the points A, B and C (click on the point and drag it).
Press the keys “+” and “−” to zoom in or zoom out the visualization window and use the arrow keys to translate it.
You can also construct all centers related with this one (as described in ETC) using the “Run Macro Tool”. To do this, click on the icon , select the center name from the list and, then, click on the vertices A, B and C successively.
Information from Kimberling's Encyclopedia of Triangle Centers |
Trilinears f(a,b,c) : f(b,c,a) : f(c,a,b), where f(a,b,c) = a/(2ax - by - cz), x = x(A,B,C) = sec(A + ω)
Barycentrics g(a,b,c) : g(b,c,a) : g(c,a,b), where g(a,b,c) = af(a,b,c)X(842) is the antipode of X(681) on the circumcircle.
X(842) lies on these lines: 2,476 3,691 4,935 23,110 30,99 74,512 98,523 107,468 111,647 112,186 858,925
X(842) = reflection of X(691) in X(3)
X(842) = isogonal conjugate of X(542)