Compute the margin (relative width) of a simplex, given its vertex
coordinates.  Works currently for polytopal metrics.

David Bremner
2007-12-5

input format:

[ dim n_points ]
simplex point 1
simplex point 2
simplex point 3
...
simplex point n
[ m_rows
ball ineq 1
ball ineq 2 
ball ineq 3 
..
ball ineq m]

dimension, n_points may be specified on command line
