function T = bilinear(m,n)%bilinear(m,n): Computes the bilinear form of two multivectors.%%See also gable.% GABLE, Copyright (c) 1999, University of Amsterdam% Copying, use and development for non-commercial purposes permitted.%          All rights for commercial use reserved; for more information%          contact Leo Dorst (leo@wins.uva.nl).%%          This software is unsupported.  if isa(m,'GA')      if isa(n,'GA')         T = GAbilinear(m,n);      else         T = m.m(1)*n;      end  else      if isa(n,'GA')         T = n.m(1)*m;      else         T = m*n;      end  end