Return the inversion which swaps two given circles.
inversionSwappingTwoCircles(circ1, circ2, positive = TRUE)Circle objects
logical, whether the sign of the desired inversion power must be positive or negative
An Inversion object, which maps circ1 to circ2
and circ2 to circ1, except in the case when circ1
and circ2 are congruent and tangent: in this case a Reflection
object is returned (a reflection is an inversion on a line).