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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)
I tested on Mac OS X / 10.3.9 PPC G4. Everything came out good except the wavelet and spline stuff.
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