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) = (sin A)/(csc 2B + csc 2C - csc 2A)
Barycentrics (sin A)f(A,B,C) : (sin B)f(B,C,A) : (sin C)f(C,A,B)
X(1988) is discussed in Lemoine's paper cited at X(19). Contributed by Darij Grinberg.
X(1988) lies on these lines: 6,436 184,1968 394,401 577,1971
X(1988) = isogonal conjugate of X(3164)
X(1988) = X(4)-cross conjugate of X(6)