Steiner tree problem, an algorithmic problem of finding extra "Steiner" points to add to a point set to reduce the cost of connecting the points
One Tree Hill | One Tree Hill (TV series) | Rudolf Steiner | tree | Christmas tree | Herbert Beerbohm Tree | Porcupine Tree | The Joshua Tree | The Hanging Tree | Quebracho tree | Joshua Tree National Park | Under the Yum Yum Tree | Scott Steiner | Happy Tree Friends | Year 2000 problem | Tree of Life | Tree of Knowledge | tree line | Tree | Oak Tree | Waring's problem | tree of life | The Steiner Brothers | The Great Ecstasy of Woodcarver Steiner | The Final Problem | Tea Tree Plaza Interchange | Rockin' Around the Christmas Tree | Radial tree | Joshua Tree | George Steiner |
The Fermat point of a triangle, the solution to the Steiner tree problem for the three vertices of the triangle