Inversion of a circle
In the following sketch, the circle centered at C is inverted in
the circle centered at A. The image of P under this
inversion is P'. Move P around the circle, and see
how P' changes. Move C and D to change the circle
being inverted. What happens to the inverse circle as D gets
close to A? This is why we sometimes think of lines as circles
with infinite radius. Write a sketch which mimics this one.
This java applet was produced using JavaSketchpad. The following
is the maker's beta on this product:
This is a prototype of JavaSketchpad,
a World-Wide-Web component of The
Geometer's Sketchpad. Copyright ©1990-1998 by Key Curriculum
Press, Inc. All rights reserved. Portions of this work were funded by the
National Science Foundation (awards DMI 9561674 & 9623018).
Arthur's Home Page
This page was created November 26th, 1998.