Interactive Applet |
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) = e(cos A + 4 cos B cos C) + J cos(A - ω), e = (1 - 4 sin2 ω)1/2, J as at X(1113)
Barycentrics (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)
X(2469) lies on these lines:
182,381 1668,2465 1669,2466 1674,2464 1675,2463 1678,2468 1679,2467 2542,2553 2543,2552