%CTRANSPOSE Transpose mapping (sequential or affine)
%
%	  W = CTRANSPOSE(W)
%	  W = W'
%
% INPUT
%   W  Mapping
%
% OUTPUT
%   W  Transposed mapping
%
% DESCRIPTION
% For the case of affine (linear) mappings (or sequential combinations of
% these), the transpose mapping is defined and returned. For other mappings 
% an error will be generated. See AFFINE.