FinInG: a package for Finite Incidence Geometry
  FinInG is a package for computation in Finite Incidence Geometry. It provides users with the basic tools to work in various areas of finite geometry from the realms of projective spaces to the flat lands of generalised polygons. The algebraic power of GAP is exploited, particularly in its facility with matrix and permutation groups. 
John Bamberg, Anton Betten, Philippe Cara, Jan De Beule, Max   Neunh\"offer, and Michel Lavrauw
math.CO