Dear Gap-forum,

A student here has been working with a (fortran) program to find out a kind
of "first vector" in communication theory. One of its variables is to run
certain iterations for a min-max problem, under a (matrix) group action,
say X^T*g*X, g \in G, norm(X)=1. The first idea was to call GAP during
this phase, not by simply storing a list "Elements(G)" and then using the
list (this should take a lot of storage space), but to take advantage of GAP
facilities to run things like an orbit algorithm.

Could anuyone give me some hint concerning this "dynamical" use of GAP ?

Thanks in advance,
Norai Rocco.