coxeterLength(WeylGroupElement) -- the length of a reduced decomposition of an element of a Weyl group

Synopsis

• Function: coxeterLength

• Usage:

  coxeterLength(w)

• Inputs:
  • w, an instance of the type WeylGroupElement,
• Outputs:
  • an integer, the number of simple reflections in a reduced decomposition of w

Description

i1 : coxeterLength longestWeylGroupElement rootSystemF4

o1 = 24