Inversion Tool

The sole purpose of the applet below is to allow experimentation with the inversion in circle. Several properties could be easily observed: a circle inverts into a circle, unless it passes through the center of inversion, in which case it inverts into a straight line. Circles perpendicular to the circle of inversion are invariant under the inversion, etc. (Circles are draggable as are their centers and the marked points on the circumference.)

Created with GeoGebra

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Copyright © 1996-2018 Alexander Bogomolny

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