(none)

[Phil J. Curtiss]

                               HELP!
	
I am looking for a good subroutine library to do constrained and
unconstrained non-linear optimisation.  I already use the IMSL library on our
VAX under VMS but I find that the routines operate poorly: they often take
too many iterations to converge and sometimes they stall or simply don't
converge.  I can solve the same problems with the NLIN procedure in SAS with
far less iterations but I have a very large number of such problems to solve
and SAS would simply not be practical.

Pierre Gagnon
Institut Maurice-Lamontagne
P.O. Box 1000
Mont-Joli (Quebec) CANADA
G5H 3Z4
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