Thanks very much for your interest in NITSOL. The code and test problems currently incorporate fixes for all known problems, including those pointed out by numerous users. The current version of the NITSOL codes is dated 6/16/03 and differs from the previous version in that (1) an error affecting usage of constant forcing terms has been corrected, (2) a possible inexact-arithmetic problem with a dacos call in nitgm.f has been fixed, (3) the comments describing usage have been extensively updated and improved, and (4) several minor things have been cleaned up. The current versions of the test codes are dated 11/1/05 and incorporate fixes to several PARAMETER statements. The latest NITSOL distribution (with the NITSOL codes, test problems, library codes and makefiles) is dated 11/1/05. The tar file "nitsol,11-1-05.tar" in this directory (481K) contains the complete and latest NITSOL distribution. The file "nitsol,11-1-05.tar.gz" (95K) is a compressed version; to uncompress, use gunzip. If you are unable to unpack the tar file or the compressed tar file, you can download all the files one-at-a-time from the directory "nitsol-distn,11-1-05" and its subdirectories. For more about NITSOL, please see the SISC paper describing the algorithm, "NITSOL: a Newton iterative solver for nonlinear systems," M. Pernice and H. F. Walker, Special Issue on Iterative Methods, SIAM J. Sci. Comput., 19 (1998), 302--318. This can be found under "Downloadable papers" at http://users.wpi.edu/~walker/. I would very much appreciate being kept in touch with any results, reprints, etc., that come out of any work you do with NITSOL. Thanks. -- Homer Walker, 11/1/05 ________________________________________________________________________ Homer F. Walker, Professor E-mail walker@wpi.edu Department of Mathematical Sciences Telephone 508-831-6113 Worcester Polytechnic Institute Fax 508-831-5824 Worcester, MA 01609-2280, USA ________________________________________________________________________