Dear list, having two multidimensional matrices A and B, with some indices, say, A_ijkl and B_mknop, how can I obtain a matrix C, where
C_ijlmnop = sum_k A_ijkl * B_mknop ie., C has all indices of A and B but for the index k, which was summed over. Thanks for your suggestions. Best regards Ruda ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
