File Applications/SpinW/m_files/sw_gensymcoupling.m generates all equivalent couplings, using space group symmetry [genCp ugenCp] = SW_GENSYMCOUPLING(obj, coupling, sym, {tol}) Input: obj sw class object. coupling Vector, contains the original coupling. Dimensions are [5 1]. Elements are [dlx dly dlz atom1 atom2 idx dist]. sym Cell, that contains the rotation and translation operators of the space group: {rotOp, trOp}. tol Tolerance, optional. Default value is 1e-5. Output: genCp Matrix, each column contains a coupling, the meaning of each row are the same as the input coupling variable. ugenCp Logical variable, true if the coupling is unique in the list of generated couplings.