  Explicit expressions and computational approaches are given for the
Fortet-Mourier distance between a positively weighted sum of Dirac measures on
a metric space and a positive finite Borel measure. Explicit expressions are
given for the distance to a single Dirac measure. For the case of a sum of
several Dirac measures one needs to resort to a computational approach. In
particular, two algorithms are given to compute the Fortet-Mourier norm of a
molecular measure, i.e. a finite weighted sum of Dirac measures. It is
discussed how one of these can be modified to allow computation of the dual
bounded Lipschitz (or Dudley) norm of such measures.
