### 26.10.8 Radical axis of two circles

The radical axis of two circles is the set of points which have the same power with respect to each circle.

The radical_axis command finds the radical axis of two circles.

- radical_axis takes two arguments: C1,C2, two circles.
- radical_axis(C1,C2) returns and draws the radical axis of C1 and C2.

#### Example

C1:=circle(0,1+i,color=blue); C2:=circle(1,1+i,color=blue); radical_axis(C1,C2)