Board Inversion
Board Inversion
Inversion is defined by , where and are the center and radius of a circle and is the exponent of inversion. Usually , in which case angles are preserved and lines and circles are mapped to lines or circles. In general, the mapping interchanges points inside and outside the circle of inversion.
z↦c+(z-c)
a
r
|z-c|
c
r
a
a=2