The point that inversion of a curve is performed with respect to.
Inversion Center
See also
Circle Power, Inverse Points, Inversion Circle, Inversion Pole, Inversion Radius, Inversive Distance, Limiting Point, PolarExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Inversion Center." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/InversionCenter.html