require 'rotgrp'

class PointGroup < RotationGroup

def rotation()
	return RotationGroup::new(@string.gsub(/\/m/){""}.gsub(/m/){"-2"}.gsub(/\-/){""}.sub(/232/){"432"})
end

def gen_matrix()
	g=[]
	for e in generator()
		inv=1
		inv=-1 if e=~/^\-/
		g.push(inv*Element[e.sub(/\-/){""}])
	end
	return g
end

end # class