NAME¶

Math::GSL - Perl interface to the GNU Scientific Library (GSL)

VERSION¶

Version 0.43

SYNOPSIS¶

    use Math::GSL::Matrix;
    my $matrix = Math::GSL::Matrix->new(5,5);   # 5x5 zero matrix
    # note that columns and rows are zero-based
    $matrix->set_col(0, [1..5])                 # set *first* column to 1,2,3,4,5
           ->set_row(2, [5..9]);                # set *third* column to 5,6,7,8,9
    my @matrix = $matrix->as_list;              # matrix as Perl list
    my $gsl_matrix = $matrix->raw;              # underlying GSL object
    use Math::GSL::RNG;
    my $rng = Math::GSL::RNG->new;
    my @random_numbers = $rng->get(1000);
    use Math::GSL::Deriv qw/:all/;
    my $function = sub { my $x=shift; sin($x**2) };
    my ($status,$val,$err) = gsl_deriv_central($function, 5, 0.01 );
    use Math::GSL qw/gsl_version/;
    # get a version object for the version of the underlying GSL library,
    # which will stringify to a version number
    my $gsl_version = gsl_version();

Each GSL subsystem has its own module. For example, the random number generator subsystem is Math::GSL::RNG. Many subsystems have a more Perlish and object-oriented frontend which can be used, as the above example shows. The raw GSL object is useful for using the low-level GSL functions, which in the case of the Matrix subsystem, would be of the form gsl_matrix_* . Each module has further documentation about the low-level C functions as well as using the more intuitive (but slightly slower) object-oriented interface.

SUBSYSTEMS¶

Math::GSL::BLAS - Linear Algebra Functions

Math::GSL::BSpline - BSplines

Math::GSL::CBLAS - Linear Algebra Functions

Math::GSL::CDF - Cumulative Distribution Functions

Math::GSL::Chebyshev - Chebyshev Polynomials

Math::GSL::Combination - Combinatoric Functions

Math::GSL::Complex - Complex Numbers

Math::GSL::Const - Various Constants

Math::GSL::DHT - Discrete Hankel Transforms

Math::GSL::Deriv - Numerical Derivative

Math::GSL::Eigen - Eigenvalues and Eigenvectors

Math::GSL::Errno - Error Handling

Math::GSL::FFT - Fast Fourier Transform

Math::GSL::Fit - Curve Fitting

Math::GSL::Heapsort - Sorting Heaps

Math::GSL::Histogram - Histograms

Math::GSL::Histogram2D - 2D Histograms

Math::GSL::Integration - Numerical Integration

Math::GSL::Interp - Interpolation

Math::GSL::Linalg - Linear Algebra

Math::GSL::Machine - Machine Specific Information

Math::GSL::Matrix - NxM Matrices

Math::GSL::Min - Minimization

Math::GSL::Monte - Monte Carlo Integrations

Math::GSL::Multifit - Multivariable Fitting

Math::GSL::Multimin - Multivariable Minimization

Math::GSL::Multiroots - Muiltvariable Root Finding

Math::GSL::NTuple - N Tuples

Math::GSL::ODEIV - Ordinary Differential Equation Solvers (Initial Value Problems)

Math::GSL::Permutation - Permutations

Math::GSL::Poly - Polynmials

Math::GSL::PowInt - Integer Power Functions

Math::GSL::QRNG - Quasi-Random Number Generators

Math::GSL::RNG - Random Number Generators

Math::GSL::Randist - Random Number Distributions

Math::GSL::Roots - Root Finding Algorithms

Math::GSL::Rstat - Running Statistics

Math::GSL::SF - Special Functions

Math::GSL::Siman - Simulated Annealing

Math::GSL::Sort - Sorting

Math::GSL::SparseMatrix - Sparse Matrices

Math::GSL::Spline - Splines

Math::GSL::Statistics - Statistics Functions

Math::GSL::Sum - Summation

Math::GSL::Sys - System utility functions

Math::GSL::Vector - N-dimensional Vectors

Math::GSL::Wavelet - Basic Wavelets

Math::GSL::Wavelet2D - 2D Wavelets

AUTHORS¶

Jonathan "Duke" Leto, "<jonathan@leto.net>" and Thierry Moisan "<thierry.moisan@gmail.com>"

BUGS¶

This software is still in active development, we appreciate your detailed bug reports and documentation patches. Please report any bugs or feature requests to the authors directly.

COMPILING ISSUES¶

Some operating system configurations will make the compilation of Math::GSL fail. One common problem that happens on RedHat Linux (RHEL) and CentOS looks like this:

    Error:  Can't load '/usr/src/misc/perl-package/Math-GSL-0.20/blib/arch/auto/Math/GSL/Errno/Errno.so'
    for module Math::GSL::Errno: /usr/src/misc/perl-package/Math-GSL-0.20/blib/arch/auto/Math/GSL/Errno/Errno.so:
    cannot restore segment prot after reloc: Permission denied at /usr/lib/perl5/5.10.0/i386-linux-thread-multi/DynaLoader.pm line 203.
    #  at blib/lib/Math/GSL/Errno.pm line 10

This is due the the SE Linux setting being set to "enforcing". To Temporarily disable enforcement on a running system:

    /usr/sbin/setenforce 0

To permanently disable enforcement during a system startup change "enforcing" to "disabled" in ''/etc/selinux/config'' and reboot.

SUPPORT¶

You can find documentation for this module with the perldoc command.

    perldoc Math::GSL

or online at <http://leto.net/code/Math-GSL/>

• AnnoCPAN: Annotated CPAN documentation

  <http://annocpan.org/dist/Math::GSL>

• CPAN Ratings

  <http://cpanratings.perl.org/d/Math::GSL>

• Search CPAN

  <http://search.cpan.org/dist/Math::GSL>

DEVELOPMENT¶

If you would like the help develop Math::GSL, visit us on Github <https://github.com/leto/math--gsl> and fork, send Pull Requests and/or create issues.

To view the latest source code online, go to <http://github.com/leto/math--gsl/tree/master>.

The latest version of Git can be found at <http://git-scm.com> .

ACKNOWLEDGEMENTS¶

Thanks to PDX.pm, The Perl Foundation and everyone at Google who makes the Summer of Code happen each year. You rock.

DEDICATION¶

This Perl module is dedicated in memory of Nick Ing-Simmons.

COPYRIGHT & LICENSE¶

Copyright (C) 2008-2021 Jonathan "Duke" Leto, Thierry Moisan all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.