Two circles c_{1} and c_{2}, and a point P are given. All circles which are tangent to the given circles and pass
through the given point shall be constructed.

You can drag the centers of c_{1} and c_{2} or the point P, and vary the radii (with pressed mouse button).
For each type of solution, you can decide, whether the solution circle is to be drawn.
The total number of solutions is indicated on the bottom right.