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) = [a(b2 - c2)]2cos B cos C
Barycentrics af(a,b,c) : bf(b,c,a) : cf(c,a,b)
X(2971) lies on these lines:
4,147 5,2974 25,111 127,136
X(2971) = reflection of X(2974) in X(5)
X(2971) = X(25)-Ceva conjugate of X(2489)
X(2971) = crosspoint of X(25) and X(2489)
X(2971) = crosssum of X(110) and X(193)