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) = b2c2 sin 2B sin 2C
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(1969) lies on these lines: 1,336 75,158 76,331 92,304 273,1240
X(1969) = isotomic conjugate of X(48)
X(1969) = cevapoint of X(75) and X(92)