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 1/(cot B - cot C) : 1/(cot C - cot A) : 1/(cot A - cot B)
= 1/(b2 - c2) : 1/(c2 - a2) : 1/(a2 - b2)
Barycentrics (sin A)/(cot B - cot C) : (sin B)/(cot C - cot A) : (sin C)/(cot A - cot B)
X(662) lies on these lines:
1,897 3,1098 6,757 27,913 48,75 60,404 81,88 86,142 99,101 100,110 109,931 214,759 243,425 261,572 326,610 333,909 648,653 656,1101 660,765 689,787 775,820 811,823 827,831X(662) = isogonal conjugate of X(661)
X(662) = cevapoint of X(100) and X(101)
X(662) = X(I)-cross conjugate of X(J) for these (I,J): (100,99), (101,110), (163,162)
X(662) = crosssum of X(798) and X(810)