Reflections in the plane

### 26.14.3 Reflections in the plane

See Section 27.12.3 for reflections in space.

The reflection command creates a reflection.

- reflection takes one mandatory argument and one optional argument:
  - P, a point or a line.
  - Optionally, G, a geometric object.
- reflection(P) returns a new command which reflects about P.
- reflection(P,G) returns and draws the reflection of G about P.

#### Examples

rf:=reflection(-1); rf(1+i)

or:

reflection(-1,1+i)

L:=line(-1,i,color=blue); P:=point(1+i); Q:=reflection(L,P)