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.) This applet requires Sun's Java VM 2 which your browser may perceive as a popup. Which it is not. If you want to see the applet work, visit Sun's website at http://www.java.com/en/download/index.jsp, download and install Java VM and enjoy the applet. Buy this applet Inversion Angle Preservation Property Apollonian Circles Theorem Archimedes' Twin Circles and a Brother Bisectal Circle Chain of Inscribed Circles Circle Inscribed in a Circular Segment Feuerbach's Theorem: a Proof Four Touching Circles Hart's Inversor Inversion in the Incircle Circle Inversion: Reflection in a Circle Circle Inversion Tool Inversion with a Negative Power Peaucellier Linkage Polar Circle Radical Axis of Circles Inscribed in a Circular Segment Steiner's porism Tangent Circles and an Isosceles Triangle Three Tangents, Three Secants Copyright © 1996-2008 Alexander Bogomolny

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