I have made a test release for gsl-1.9. I have only tested it on GNU/Linux -- please report any problems you find in compiling it, running make check or against existing applications (it should be backwards compatible).
It is available at the following location: http://www.network-theory.co.uk/download/gsl/gsl-1.8.90.tar.gz http://www.network-theory.co.uk/download/gsl/gsl-1.8.90.tar.gz.sig The main new features from the ChangeLog are: ** Added support for nonsymmetric eigensystems (Patrick Alken) ** Added Mathieu functions (Lowell Johnson) ** Added a new BFGS2 minimisation method, requires substantially fewer function and gradient evaluations that the existing BFGS minimiser. ** Added new functions for basis splines (Patrick Alken) -- Brian Gough
