=head1 Math::GSL Changes =head1 v.044 - December 2023 - Added support for GSL 2.7.1 (yewtc) =head1 v0.43 - July 2021 - Added support for GSL 2.7 (hakonhagland) - Added support for macOS (hakonhagland) - Moved cotinuous integration testing from travis.ci to GitHub Actions (hakonhagland) - Pod spelling corrections (mohawk2) =head1 v0.42 - June 2020 - Disabled two tests in SF.t and GSL.t that failed on some platforms. =head1 v0.41 - June 2020 - Added support for GSL 2.6 (hakonhagland) - Added docker file support for building a CPAN distribution - Added support for gsl_odeiv_system (hakonhagland) - Add support for Debian-specific version 1.16.1, which caused test failures =head1 v0.40 - December 2018 - added support for GSL 2.5 (djerius) - vast improvements to Travis CI test infrastructure (djerius) - added random method in Math::GSL::Matrix (Rui Meira) - added Math::GSL::Multiset (standard gsl API and Perl OO) - gsl_linalg_givens now works - gsl_vector_const_subvector is now exported properly - Support for Sparse Matrices was added - Documentation for Math::GSL::Rstat, Math::GSL::SparseMatrix, Math::GSL::Diff - Math::GSL::Multifit now requires GSL 2.1 and higher - Math::GSL::Rstat now requires GSL 2.1 and higher =head1 v0.39 - September 2016 - Fix Debian Bug reported by Niko Tyni https://bugs.debian.org/826009 - Extensive fixes to allow GSL 1.15 and GSL 1.16 to continue to work with GSL 2.x - GSL 1.11 - 1.14 are no longer supported =head1 v0.38 - September 2016 - Fixes for compiling against various GSL versions (thanks CPANtesters!) =head1 v0.37 - September 2016 - Support for GSL 2.0, 2.1 and 2.2 - Multilarge subsystem added for GSL >= 2.1 =head1 v0.36 - Fri Mar 25 23:32:03 PDT 2016 - Fixed error messages on Matrix set_col and set_row methods (Jon Schutz) - Implemented array-based Bessel functions: gsl_sf_bessel_Jn_array gsl_sf_bessel_Yn_array gsl_sf_bessel_In_array gsl_sf_bessel_In_scaled_array gsl_sf_bessel_Kn_array gsl_sf_bessel_Kn_scaled_array gsl_sf_bessel_jl_array gsl_sf_bessel_jl_steed_array gsl_sf_bessel_yl_array gsl_sf_bessel_il_scaled_array =head1 v0.35 - April 2015 - Remotion of trailing whitespaces (Shlomi Fish) - Documentation fixes (Shlomi Fish) - Remotion of PkgConfig from runtime requirements (Bartosz Jakubski) - Indentation fixes (Bartosz Jakubski) - Installation feedback improvements (Bartosz Jakubski) =head1 v0.34 - December 2014 - Fixed bug on uncleared error variable (5.8.9) - Added OO transpose method for matrices (Ivan Baidakou) =head1 v0.33 - September 2014 - Added OO code for RNG->shuffle, RNG->choose and RNG->sample. - Complain when opening (fopen) a file from a tainted string. - Complex now has operator overloading for +,-, ==, !=, *, / - Added write/load methods to save a matrix to file. =head1 v0.32 - June 2014 - Correctly split the compiler name. - Added OO code to the QRNG module. - Fixed QRNG code that was failing on some machines. =head1 v0.31 - June 2014 - Fixed Matrix multiplication that was forcing square matrices. =head1 v0.30 - June 2014 - Fixed generated C files with wrong GSL version numbers. - Refactored Build.PL in order to use either gsl-config or PkgConfig. - Change Build.PL to return 0 when GSL library not found. - Use PkgConfig instead of ExtUtils::PkgConfig. - Math::GSL::Matrix constructor from a GSL matrix. - Reorganization on the Math::GSL::Matrix documentation. - Add symbols introduced on gsl 1.15. - Fixed in the correct way the prove/TAP::Harness problem. =head1 v0.29 - June 2014 - Fix issue when prove/TAP::Harness uses lib/ modules instead of blib/ ones. - Add functions introduced in gsl 1.16. - Fix issue when compiling on some Linuxes. - Math::GSL ->each method. - Math::GSL ->max and ->min methods. - Math::GSL ->dim method. - Math::GSL ->set_elem and ->get_elem methods. - Math::GSL concat_vertically and concat_horizontally. =head1 v0.28 - Jan 2014 - Fix build errors with clang - Improve POD to play nice with Perl 5.18 - Teach Math::GSL about new functions added in GSL 1.16 - Added 1D minimization tests =head1 v0.27 - July 2012 - Mathieu functions are now accessible - Improved detection of gsl - Fix bug in calling ->get() method on Math::GSL::Vectors - Greatly improved HTML formatting of documentation =head1 v0.26 - September 2011 - The Math::GSL::Min and Math::GSL::Roots are now functional - Yury Zavarin - Dirichlet random distribution support and greatly increased docs by Tom Nishimura - gsl_version() function which returns the version of GSL being used by Tom Nishimura - Fix '-bundle not allowed with -dynamiclib' build error on Mac OS X - Yury Zavarin - Build swig wrappers for different versions of GSL (1.11 - 1.15) - Yury Zavarin - Minimum SWIG version is now 2.x (only required for developers using the git repo) - Removed deprecated stuff from Build.PL and added Module::Build to configure_requires - Many small documentation improvements - Fix build on Windows - Sisyphus =head1 v0.25 - April 2011 - TODO RT#66882 properly so that a stable release with a passing test suite can be used. =head1 v0.24 - April 2011 - Fix https://rt.cpan.org/Ticket/Display.html?id=66882 (Tests fail on Perl's with DUSELONGDOUBLE) =head1 v0.23 - March 2011 - Fixed the tolerance of some tests that were causing CPANtesters failures - Fixed some doc typos =head1 v0.22 - June 2010 - Improved tests - == and != operators for Vectors - Fixed the export of hypergeometric functions (Thierry Moisan) - In instantiation of GSLBuilder in Build.PL, the value for the parameter include_dirs were corrected to an anonymous empty array, instead of an empty string. (Jakob Ilves) - Operator overloading of vector equality (Thierry Moisan) - Various doc fixes (Pjotr Prins) - Typemap fixes (Vincent Danjean) =head1 v0.20 - May 19 2009 - $rng->get($n) will now return the next $n values of the random number generator - Fixed + added test for RT#45044 math-gsl eigenpair bug, reported with patch by Ian Malone - Added more tests for Randist - Fixed some incorrectly written tests for BLAS and Linalg - Improved NTuple support and tests - Improvements to callbacks, thanks to patches from piotrj - The following improvements were merged from Vincent Danjean's git repo: - Fixed some memory leaks caused by in-typemaps without argout-typemaps - Improved portable callback implementation - Correct handling of double, float and size_t on x64 - Removed duplicate definition of fopen/fclose in VectorComplex - Fix bug where proper flags to SWIG were not passed =head1 v0.18 - March 23 2009 - Make Math::GSL play nice with GSL 1.12 - Added swap() to Vector objects with tests and docs - Added p-norms to Vector objects via norm() and normalize() - Added operator overloading so that abs $vector == $vector->norm - Added as_vector() to Matrix and MatrixComplex objects - Added inverse(), is_square(), det(), lndet(), zero() and identity() to Matrix objects - Added inverse(), is_square(), det(), lndet(), zero(), identity() and hermitian() to MatrixComplex objects - Added dot product to Matrix objects - Fixed various typos in documentation - Fixed warnings about overloaded operators in Matrix and BLAS - Overloaded '==' and '!=' for MatrixComplex and Matrix objects - Fixed amd64 -fPIC compile failure - Added tests to Monte and refactor Sort tests - Refactored and improve error checking in callback interface - Fixed 'NaN' test failures (thanks CPANtesters!) =head1 v0.16 - December 14 2008 (Happy Snowpocalypse PDX!) - Fixed RT#40947: configure_requires ExtUtils::PkgConfig bug - Added reverse() and swap() methods to VectorComplex objects with tests and docs - as_list() and get() now work on VectorComplex objects as_list() returns a list of Math::Complex objects get() returns a list of Math::GSL::Complex objects - Math::GSL::Test::ok_status() now takes an optional message argument - Added KNOWN_BUGS - Added Math::GSL::Test::is_status_ok() - New subsytems: VectorComplex and MatrixComplex - Operator overloading for addition and subtraction with vectors - Added example: examples/matrix/nonsymmetric_eigen Shows how to find the eigenvalues of a nonsymmetric matrix - Added copy() method to vectors - Improved Vector docs - Sped up vector dot products by 15x using BLAS function gsl_blas_ddot NOTE: using gsl_blas_ddot($x->raw,$y->raw) directly is still about 10 times faster than $x * $y due to error checking and function call overhead - Separated POD and Perl code out of SWIG interface files, yay for proper syntax highlighting - Added stub test files for Heapsort, IEEEUtils, Multimin, Siman, Wavelet2D - All test files now keep track of how many tests should run - Fix an include bug in Histogram2D which caused the build to fail (Thierry) - Operator overloading for addition, multiplication and subtraction on Matrix objects (Thierry) =head1 v0.14 - October 21 2008 - Chebyshev Series Approximation, with tests and docs - Examples and new documentation in Statistics, as well as tests (Thierry) - Bugfixes relating to compiling on 64bit Red Hat Linux, reported by Michael Roberge - Improved FFT, Deriv, Integration, Chebyshev, Combination and Roots docs - Documentation for Math::GSL::Test - Improved introduction examples in Math::GSL - Improved Minimization subsystem tests, but it is not functional - Added examples/fft/forward_real - Added example/deriv/basic This shows the simple fact that d/dx(sin(x)) = cos(x) - Added example/sf/erfc_check (thanks to Keith Lofstrom) Script which tests the erfc() special function against computing the integral definition with gsl_integration_qagiu() - Added example/vector/speed This shows a considerable performance boost using Math::GSL::Vectors instead of List::Util when searching for the min and max elements of large sets of random numbers. - Fixed return signature of gsl_deriv_* functions to return a flat list - Fixed some failing tests relating to -Duselongdouble (Sisyphus) - Fix location of shared objects (Sisyphus) - Added raw() method to RNG objects =head1 v0.12 - September 14 2008 - Darwin support! - Minimum Perl version changed to 5.8.0 - Make platform check compile time constants for performance aka The Wilhelm Speedup (thanks to Eric Wilhelm ) - FFT for real data - Numerical derivatives fully implemented - Integration subsystem, gsl_integrate_qags() and gsl_integrate_qagi(), etc.. - QNG : Non-adaptive Gaussian (uses fixed number of sample points in interval) - QAG(S) : Adaptive Gaussian (Singluar) (slices interval up based on properties of the function) - QAGI : Adaptive Gaussian with infinite integration range - other are supported but not tested - Initial Monte tests - Initial Multiroots tests - More nan/inf fixes on MSWin32 from - Stripping of binaries on Windows, which significantly reduces size from - Full support and tests for all functions in the Sort subsystem - Added 'examples/benchmark/sort' to show performance of gsl_sort() - Added 'examples/clicker/chart' to show graphing of functions - Added 'examples/gsl_repl' which is a rapid prototyping tool/interactive interpreter - Compile support for GSL's as old as 1.8 (test suite still needs to be properly guarded) =head1 v0.10 - Continued porting to MSWin32, fixing many NaN and Inf handling issues =head1 v0.08 - Large documentation improvements - MSWin32 support thanks to testing and feedback from =head1 v0.07 - Initial CPAN release =head1 v0.042 - Started change to Test::Class =head1 v0.01 - Added swig interface files and swig-ified build script - initial tests for special function library gsl_sf <--> Math::GSL::Sf - Proof Of Concept: makegsl and testgsl