Apologies for replying to myself.
>>> I wrote: ww> C_ij A_j ww> P_ij = lambda_i -------------- ww> Sum_k C_jk A_k The first factor in the sum in should be C_ik, not C_jk. There is no imbedded chain, nor "skew" in the equation. There was skew in my reasoning. ;) It also means that lambda_i == 1 -- it is already normalized. -- William Waites <[EMAIL PROTECTED]> finger [EMAIL PROTECTED] for PGP keys Idiosyntactix Research Laboratories http://www.irl.styx.org