Apollonian Gasket - Curvature

Curvature

The curvature of a circle (bend) is defined to be the inverse of its radius.

• Negative curvature indicates that all other circles are internally tangent to that circle. This is bounding circle
• Zero curvature gives a line (circle with infinite radius).
• Positive curvature indicates that all other circles are externally tangent to that circle. This circle is in the interior of circle with negative curvature.