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) = u(bv - cw)/(a2u2 - bcvw), u : v : w = X(4)
Barycentrics g(a,b,c) : g(b,c,a) : g(c,a,b), where g(a,b,c) = af(a,b,c)
X(879) lies on these lines:
3,525 4,512 6,523 54,826 66,924 67,526 69,520 74,98 287,895X(879) = isotomic conjugate of X(877)
X(879) = crosssum of X(511) and X(684)
X(879) = crossdifference of any two points on line X(232)X(511)