Looking for an implementation of the Newmark scheme for numerical solution of ODE

Hi everyone

This is my first post ever to this group. I don't lurk here, but after
trawling through the archives, I think Im safe in saying that this
question has not been asked before.

Ive got a highly nonlinear system, and I understand that the Newmark
scheme the traditional choice for solving these. Searching Netlib and
the like for an existing implementation of this scheme does not yield
any results. Does anybody have an implementation in C or Fortran that
they are willing to share?

Alternatively, are there any suggestions for any other schemes that
will cope nicely with a highly nonlinear system and have an
implemenation out there for ready download (free or otherwise)?

Cheers

Daniel Poon
www.romaxtech.com

.

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