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) = (cos A)(v + w - u),
u = u(A,B,C) = cos A cos(B - A) cos(C - A), v = u(B,C,A), w = u(C,A,B)
Barycentrics af(A,B,C) : bf(B,C,A) : cf(C,A,B)
Barycentrics 4 cos 2A + cot2A - cot A cot ω : 4 cos 2B + cot2B - cot B cot ω : 4 cos 2C + cot2C - cot C cot ω (M. Iliev, 5/13/07)
X(195) lies on these lines:
3,54 4,399 6,17 49,52 110,143 140,323 155,381 382,1498
X(195) = reflection of X(I) in X(J) for these (I,J): (3,54), (54,1493)
X(195) = X(5)-Ceva conjugate of X(3)
X(195) = crosssum of X(137) and X(523)