The Yiu circle is the circumcircle of the Yiu triangle 
.
It has center function given by
 |
where 
is a 14th-order polynomial. Its
radius is
 |
where 
is a 12th-order polynomial and
is the circumradius
of the reference triangle 
.
Yiu Circle
See also
Yiu Circles, Yiu TriangleExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Yiu Circle." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/YiuCircle.html