[GAP Forum] Bruhat orders

[Gary Makonel]

Hi

I was wondering whether there is any current version of a calculator for
Coxeter-Weyl root systems etc. Concretely all I am trying to do is to
calculate the reduced Bruhat order on certain (parabolic) quotients of
symmetric groups, so I do not necessarily need the full machinery.
But naively using the "length" function etc on elements of the symmetric
group does not seem to work, and references on the web to "Chevie" and
"Weyl" packages seem to be defunct ...

Many thanks in advance

Gary