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) = cos A + (4 - J) cos B cos C, J as at X(1113).
Barycentrics (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)
The circle (X(4),2R) is identified at X(2474).
X(2553) lies on these lines:
2,3 388,2463 497,2464 1587,2465 1588,2466 2467,2550 2468,2551 2469,2542 2470,2543 2471,2546 2472,2547