Apollonius' problem | Article about Apollonius' problem by The Free Dictionary
Apollonius' problem[‚ap·ə¦lōn·ē·əs ¦präb·ləm]
The problem of constructing a circle that is tangent to three given circles.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
A generalization of Apollonius' problem
is the following: find the number of irreducible conies (ellipses, parabolas, hyperbolas) which are tangent to 5 given circles.