Auxiliary Circle

Eric W. Weisstein
January 11, 2002

This notebook downloaded from http://mathworld.wolfram.com/notebooks/PlaneGeometry/AuxiliaryCircle.nb.

For more information, see Eric's MathWorld entry http://mathworld.wolfram.com/AuxiliaryCircle.html.

©2005 Wolfram Research, Inc. except for portions noted otherwise

Initialization

<<PlaneGeometry`

Usage

?AuxiliaryCircle

e=Circle[{0,0},{1,.5}];
Show[Graphics[{e,AuxiliaryCircle[e],
PointLabels[{{0,0},"O"}]
}],AspectRatio->Automatic]