See Section 25.12.7 for inversions in space.
Given a circle C with center P and radius r, the inversion of a point A with respect to C is the point A′ on the ray PA satisfying PA·PA′=r2.
The inversion command creates an inversion.
inver:=inversion(i,2); inver(circle(1+i,1)) |
or:
inversion(i,2,circle(1+i,1)) |
then:
inver(circle(1+i,1/2)) |