-- -*- M2-comint -*- hash: 1730162152900604394

i1 : F = hirzebruchFan 3

o1 = {ambient dimension => 2         }
      number of generating cones => 4
      number of rays => 4
      top dimension of the cones => 2

o1 : Fan

i2 : rays F

o2 = {| 0  |, | 0 |, | -1 |, | 1 |}
      | -1 |  | 1 |  | 3  |  | 0 |

o2 : List

i3 : 
