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 2 - cos(B - C) : 2 - cos(C - A) : 2 - cos(A - B)
Barycentrics (sin A)[2 - cos(B - C)] : (sin B)[2 - cos(C - A)] : (sin C)[2 - cos(A - B)]
Peter Yff, "Three concurrent congruent circles 'inscribed' in a triangle," manuscript, 1998; X(496) is the point R' on page 5.
X(496) lies on these lines: 1,5 2,1058 3,497 4,999 30,56 35,549 36,550 55,140 149,404 202,397 203,398 381,388 390,631 613,1069 614,1062 942,946