gsl-2.6

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

What is new in gsl-2.6:

• add BLAS calls for the following functions:
  • gsl_vector_memcpy
  • gsl_vector_scale
  • gsl_matrix_memcpy
  • gsl_matrix_transpose_memcpy
  • gsl_matrix_tricpy
  • gsl_matrix_transpose_tricpy

• deprecated functions gsl_linalg_complex_householder_hm and gsl_linalg_complex_householder_mh

• add unit tests for gsl_linalg_symmtd and gsl_linalg_hermtd

• multilarge TSQR algorithm has been converted to use the new Level 3 QR decomposition

• nonlinear least squares Cholesky solver now uses the new Level 3 BLAS method; the old modified Cholesky solver is still available under gsl_multifit_nlinear_solver_mcholesky and gsl_multilarge_nlinear_solver_mcholesky

• implemented Level 3 BLAS versions of several linear algebra routines:
  • Triangular matrix inversion
  • Cholesky decomposition and inversion (real and complex)
  • LU decomposition and inversion (real and complex)
  • QR decomposition (courtesy of Julien Langou)
  • Generalized symmetric/hermitian eigensystem reduction to standard form

• removed deprecated function gsl_linalg_hessenberg()

• renamed gsl_interp2d_eval_e_extrap() to gsl_interp2d_eval_extrap_e() to match documentation (reported by D. Lebrun-Grandie)

• renamed some of the gsl_sf_hermite functions to be more consistent with rest of the library, and deprecated old function names

• updated gsl_sf_hermite_func() to use a newer algorithm due to B. Bunck which is more stable for large x; also added gsl_sf_hermite_func_fast() which uses the faster Cauchy integral algorithm in the same paper by Bunck

• add gsl_vector_axpby()

• add un-pivoted LDLT decomposition and its banded variant (gsl_linalg_ldlt_* and gsl_linalg_ldlt_band_*)

• add binary search tree module (gsl_bst); based on GNU libavl

• remove -u flag to gsl-histogram
• updated spmatrix module
  • added routines and data structures for all types (float,uint,char,...)
  • added gsl_spmatrix_scale_columns() and gsl_spmatrix_scale_rows()
  • added gsl_spmatrix_add_to_dense()
  • more efficient reallocation of COO/triplet matrices (no longer rebuilds binary tree)
  • enhanced test suite
  • added gsl_spmatrix_min_index()

• add routines for banded Cholesky decomposition (gsl_linalg_cholesky_band_*)

• documented gsl_linalg_LQ routines and added gsl_linalg_LQ_lssolve()

[Douglas R. Reno]

I forgot to bump the version number last night. Sorry about that!