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) is as described just before X(2883)
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(2939) lies on these lines:
1,19 3,1762 20,2822 35,228 40,2947 43,46 72,1761 165,191 170,2938 2779,2948
X(2939) = reflection of X(1) in X(2360)
X(2939) = X(72)-Ceva conjugate of X(1)
X(2939) = X(I)-aleph conjugate of X(J) for these I,J: 1,1724 2,1730 10,1710 72,2939 188,4 366,579