© 2000 Todd Neller.  A.I.M.A. text figures © 1995 Prentice Hall.  Used by permission.
Properties of A*
•A* is optimal – finds optimal path to goal
•A* is optimally efficient - no other algorithm is guaranteed to expand fewer nodes
•A* is complete on locally finite graphs (finite branching factor, minimum cost constant)
•Complexity exponential unless h is very accurate (error grows no faster than log of actual path cost)