Fri Dec 19 2014¶ ↑

• Ruby/GSL 1.16.0.4

  • Optimize and extract multiplication and division operations on Fixnum and Float. Pull request #8 by Veselin Vasilev.

  • Fixed division in GSL::Oper for GSL::Vector::Col. Issue #9.

Tue Oct 21 2014¶ ↑

• Ruby/GSL 1.16.0.3

  • Fixed RDoc issues. Issue #6 by @bigtunacan.

  • Fixed $LOAD_PATH problem. Pull request #7 by Takahiro SATOH.

Wed Jul 9 2014¶ ↑

• Ruby/GSL 1.16.0.2

  • Fixed linking problem.

Thu Apr 24 2014¶ ↑

• Ruby/GSL 1.16.0.1

  • Extensive cleanup.

  • Fixed linking problems.

  • Required Ruby version >= 1.8.7.

Fri Jan 24 2014¶ ↑

• Ruby/GSL 1.16.0

  • GSL-1.16 support.

Fri Jan 24 2014¶ ↑

• Ruby/GSL 1.15.3.2

  • Windows compatibility.

  • Ruby 2.x compatibility.

  • Ported tests to Test::Unit.

  • Silenced compilation warnings.

  • Switched to rake-compiler for compilation.

Sat Feb 26 2011¶ ↑

• Ruby/GSL 1.14.7

  • Fix conversion of non-DFLOAT NArray to GSL::Vector and GSL::Vector::Complex.

Thu Feb 24 2011¶ ↑

• Ruby/GSL 1.14.6

  • Add Vector::Complex support to NArray conversions

  • Raise exception when trying to create View from NArray object of incompatible type.

Sun Nov 14 2010¶ ↑

• Ruby/GSL 1.14.5

  • Convert docs from rdtool to rdoc

  • Fix object id handling bugs on 64-bit systems

  • Fix Vector's handling of Range parameters

Wed Sep 29 2010¶ ↑

• Modification for ruby-1.9.2

  • Replaced STR2CSTR to StringValuePtr

Mon Mar 22 2010¶ ↑

• GSL-1.14 support

  • Added GSL::Multiset class

  • Added GSL::Function#glfixed(a, b table)

Sun Aug 16 2009¶ ↑

• Added Non-negative Matrix Factorization (NMF) support (by Roman Shterenzon)

Sat Aug 8 2009¶ ↑

• Added GSL-1.13 features:

  • Added GSL::Monte::Miser#params_get, GSL::Monte::Vegas#params_get

  • Added GSL::BSpline::greville_abscissa(i)

  • Added GSL::Poly#eval_derivs(x)

  • Added a new minimization algorithm “quad_golden”

  • Added a new multimin algorithm “nmsimplex2rand”

Tue Jun 9 2009¶ ↑

• Fixed bug in linalg.c (bug [#25842])

Thu Feb 2 2009¶ ↑

• Fixed a bug in GSL::Histogram.alloc_uniform() (bug [#23040])

• Fixed a bug in GSL::Vector#/ (bug [#23334])

Thu Nov 6 2008¶ ↑

• Match with the tensor extension version 0.99

  • now not compatible for the versions older than tensor-0.97.

Sat Jul 26 2008¶ ↑

• GSL::Poly.eval now handles complex numbers (GSL-1.11)

• Added new quasi-random generators “halton” and “reversehalton”

• Added a module function GSL::MultiFit::linear_residuals() (GSL-1.11)

• Fixed a bug in ODE solver

Mon Jun 30 2008¶ ↑

• Fixed GSL::Vector#normalize (#20865)

Mon May 26 2008¶ ↑

• Fixed a bug in GSL::Matrix::to_v (#19757)

• Fixed a bug in GSL::Vector::Int multiplication (#19924)

Sat Dec 8 2007¶ ↑

• Version 1.10.3

Tue Dec 2 2007¶ ↑

• Improved GSL::Vector#get for a Range arg

• Improved GSL::Vector#concat for an Array arg

• Fixed a bug in GSL::Matrix.alloc with column vector arguments

Thu Dec 2 2007¶ ↑

• Added methods GSL::Vector#pow(p), GSL::Vector#pow!(p)

Wed Oct 17 2007¶ ↑

• Fixed a bug in poly_source.c

Sun Oct 7 2007¶ ↑

• Version 1.10.0

• ndlinear extension support

Sat Sep 22 2007¶ ↑

• Added GSL-1.10 features

  • Added generalized eigensystem methods

  • Added method GSL::Stats::correlation(v1, v2) to compute Pearson correlation of two datasets

  • Added methods GSL::Sf::expint_En(n, x), GSL::Sf::expint_En_e(n, x) for computing the n-th order exponential integral.

  • Added methods GSL::Vector#isnonneg, GSL::Vector#isnonneg?, GSL::Matrix#isnonneg, and GSL::Matrix#isnonneg?

  • Added methods GSL::Matrix#subrow, GSL::Matrix#subcolumn

  • Added methods GSL::Linalg::Chomplex::Cholesky::decomp, GSL::Linalg::Chomplex::Cholesky::solve, and GSL::Linalg::Chomplex::Cholesky::svx

  • Added method GSL::hypot3(x, y, z)

Sat Aug 11 2007¶ ↑

• Modified ext/extconf.rb: Check gsl_stats_correlation()

Sun Aug 5 2007¶ ↑

• Improved GSL::Vector::filescan()

Tue May 15 2007¶ ↑

• Fixed a bug in Vector#get (Thank to Daigo Moriwaki)

Sun Feb 18 2007¶ ↑

• Completed GSL-1.8.90 features

  • Change names “unsymm” —> “nonsymm” for non-symmetric eigen systems

  • Added Mathieu functions

  • Added Vector#ispos, isneg

  • Added knuthran2002 generator

  • Added a new minimization method GSL::MultiMin::FdfMinimizer::BFGS2

Sun Dec 31 2006¶ ↑

• Remove the module function GSL::equal?, which breaks the Ruby policy.

Sun Dec 24 2006¶ ↑

• Added Basis splines

• CQP and Bundle extentions support

Wed Dec 13 2006¶ ↑

• OOL extension support (OOL version 0.2)

  • OOL: Open Optimization Library

Mon Dec 11 2006¶ ↑

• Add a quasi-random sequence generator hdsobol (require the qrngextra extension)

Tue Sep 26 2006¶ ↑

• Fixed a bug in GSL::Vector#*

Sun Sep 24 2006¶ ↑

• Fixed a bug in GSL::Matrix.vandermonde()

• Added methods GSL::Vector#join, zip, cumsum, cumprod

Thu Sep 21 2006¶ ↑

• Added methods to calculate eigenvectors of nonsymmetric matrices

• Added test scripts tests/eigen/unsymm.rb, tests/eigen/unsymmv.rb

Wed Aug 23 2006¶ ↑

• Added methods to calculate eigenvalues of nonsymmetric matrices

Fri Aug 18 2006¶ ↑

• Fixed bug in Sf::hypot

Sat Apr 29 2006¶ ↑

• Applied patch provided by Cameron McBride, to fix a bug in randist.c

• Applied patched by zunda to fix some test/ scripts.

Thu Apr 13 2006¶ ↑

• Version 1.8.0

  • Added cumulative distribution functions under the module GSL::Cdf: binomial, poisson, geometric, negative binomial, pascal and hypergeometric.

  • Added module functions GSL::Cdf::beta_Pinv, beta_Qinv, fdist_Pinv, and fdist_Qinv.

  • Added the multilinear fit estimator function GSL::MultiFit::linear_est.

  • Added new random variate generators, GSL::Ran::gaussian_ziggurat and gamma_mt.

  • Added Debye functions for n=5 and n=6, as GSL::Sf::debye_5 and debye_6.

  • Added GSL::Spline#min_size

  • Added the Debye unit to physical constants.

Fri Dec 2 2005¶ ↑

• Singleton method “new” —> “alloc”

Sun Nov 27 2005¶ ↑

• Apply patch by zunda to improve multifit.

• Fix bug in dirac.c

Tue Apr 3 JST 2005¶ ↑

• Added Vector#collect!, Matrix#collect!

• Added lib/rbgsl.rb, in which the GSL module is not included by default

Wed Apr 27 2005¶ ↑

• The following Linalg methods now can handle NArray objects:

  • GSL::Linalg::

    • LU.decomp(m)

    • LU.solve(lu, b)

    • LU.svx(lu, bx)

    • LU.det(lu, sign)

    • LU.lndet(lu)

    • LU.invert(lu, perm)

    • QR.decomp(m)

    • QR.solve(qr, tau, b)

    • QR.svx(qr, tau, bx)

    • SV.decomp(m)

    • SV.solve(u, v, s, b)

    • SV.svx(u, v, s, bx)

    • Cholesky.decomp(m)

    • Cholesky.solve(u, v, s, b)

    • Cholesky.svx(u, v, s, bx)

    • HH.solve(m, b)

    • HH.svx(m, bx)

Mon Apr 18 2005¶ ↑

• Improved gsl_narray.c (thanks to T. Horinouchi)

• Modified extconf.rb

  • Automatic finding of NArray

• Applied a patch by zunda

Thu Apr 7 2005¶ ↑

• Modified extconf.rb

Mon Mar 21 2005¶ ↑

• Version 1.6.2

Sat Mar 19 2005¶ ↑

• Fixed Blas.dgemm, .zgemm

• Fixed method re-definitions

Tue Mar 15 2005¶ ↑

• Added class GSL::Block::Byte, GSL::Block::Index

• Added NArray-like methods, Vector#eq, ne, gt, where, any? etc.

• Added methods Vector#floor, Vector#ceil, and Vector#round (if the system has)

Sat Mar 12 2005¶ ↑

• Fixed Vector#get

Sat Feb 26 2005¶ ↑

• Ruby 1.9.0 support

Sat Feb 5 2005¶ ↑

• Version 1.6.1

Wed Jan 26 2005¶ ↑

• Added in-place FFT methods

  • Fixed FFT document

Thu Jan 20 2005¶ ↑

• Added Vector#decimate, Vector#diff

• Added Matrix#rot90

• Fixed Matrix::Complex

Thu Jan 06 2005¶ ↑

• Some methods which receive GSL::Vector now can also manipulate NArray objects.

  • Special functions

  • Probability distributions

  • Statistics

  • FFTs

  • Wavelet transforms

  • Interpolations

  • Serices accelerations

• Added method Vector#decimate

• Sf::exp now can receive Complex or Vector::Complex

Tue Jan 04¶ ↑

• Version 1.6.0

Thu Dec 30 2004 Yoshiki Tsunesada¶ ↑

• Update for GSL-1.5.90

  • Added Sf::psi_1

  • Added ODE stepper rk2simp

  • Added LQ, PTLQ decompositions

  • Added methods Cdf::exppow_P, Cdf::exppow_Q

Mon Dec 27 2004 Yoshiki Tsunesada¶ ↑

• All Ruby/GSL classes are defined as derivatives of the base class GSL::Object.

• Defined the method GSL::Object#info

• Added Vector#histogram

• Added Vector.filescan

• Modified the methods Histogram#increment, accumulate

• Added methods Poly.fit, Poly.wfit, MultiFit.polyfit

• Added methods Vector::Complex#abs2, abs, arg

• Modified FFT methods: now they return FFTed data as a new vector, and do not destroy the input vector.

Sat Dec 11 2004 Yoshiki Tsunesada¶ ↑

• Modified Histogram#integral

Fri Dec 10 2004 Yoshiki Tsunesada¶ ↑

• Added methods Histogram#reverse, Histogram2d#integrate, Histogram2d#normalize

Mon Dec 6 2004 Yoshiki Tsunesada¶ ↑

• Version 1.5.4

Fri Dec 3 2004 Yoshiki Tsunesada¶ ↑

• Added Histogram#rebin

Fri Nov 26 2004 Yoshiki Tsunesada¶ ↑

• Added method Vector#to_m

• Added methods Matrix#reverse_rows, Matrix#reverse_columns

Tue Nov 16 2004 Yoshiki Tsunesada¶ ↑

• The method Matrix#** is now obsolete, use “*” for matrix multiplication instead.

• Improved Matrix#* and Vetor#*

• Added methods Vector#to_m_diagonal, Vector#to_m_circulant, Vector#collect

• Added methods Matrix.hilbert, Matrix.invhilbert, Matrix.pascal, Matrix.vandermonde, Matrix.toeplitz, Matrix.circulant

• Added methods Vector.indgen, Vector#indgen, Matrix.indgen, Matrix#indgen (mimics NArray)

• Added class GSL::Histogram3d

• Checked GSL lower version compatibilities

  • gsl-1.0 ~ gsl-1.5: OK

  • gsl-0.9.4: OK

  • gsl-0.9.3 or older: not tested

  • gsl-1.6 (development version, CVS Nov2004): OK

Sun Nov 7 2004 Yoshiki Tsunesada¶ ↑

• Support the gsl_tensor package

  • sources.redhat.com/ml/gsl-discuss/2004-q4/msg00053.html

  • Added class GSL::Tensor, GSL::Tensor::Int

• The methods Vector#get, Vector#[] now receive multiple arguments, or an Array, or a Range object.

Thu Nov 4 2004 Yoshiki Tsunesada¶ ↑

• Added class GSL::Histogram::Integral, which represents the cumulative distribution.

• Added method GSL::Histogram#integrate, which creates a GSL::Histogram::Integral object.

• Added methods GSL::Histogram2d#xproject, yproject, normalize, increment2.

Sun Oct 31 2004 Yoshiki Tsunesada¶ ↑

• Fix the document for Polynomials

• Added methods Poly::hermite(n), Poly::cheb(n), and Poly::cheb_II(n) etc..

• Added method Poly#compan, which returns the companion matrix.

• The method Matrix#/ is improved: if a Vector is given, this method solves the linear system.

Mon Oct 25 2004 Yoshiki Tsunesada¶ ↑

• Split the source file “randist.c” into “randist.c” and “cdf.c”

• Split the source file “diff.c” into “diff.c” and “deriv.c”

• Split the source file “interp.c” into “interp.c” and “spline.c”

• Added methods Vector#abs, sqrt, square, normalize

• Added sample scripts odeiv/frei1.rb, fft/frei2.rb and eigen/qhoscillator.rb, which deal with quantum mechanical calculations. These are translated from the C++ code in the Harald Wiedemann's textbook “Numerische Physik” (Springer 2004, ISBN 3-540-40774-X).

Sat Oct 23 2004 Yoshiki Tsunesada¶ ↑

• Added a method GSL::Vector#logspace2. The following two are equivalent:

  v1 = Vector.logspace(1, 3, 5)
  v2 = Vector.logspace2(10, 1000, 5)
  

Tue Oct 19 2004 Yoshiki Tsunesada¶ ↑

• Support the rngextra package

  • www.network-theory.co.uk/download/rngextra/

  • Added two random number generators “rngextra_rng1” and “rngextra_rng2”

  • Fixed a bug in the method Vector#subvector_with_stride

Mon Oct 18 2004 Yoshiki Tsunesada¶ ↑

• Added a sample script dht.rb

Fri Oct 8 2004 Yoshiki Tsunesada¶ ↑

• Version 1.5.3

Thu Oct 7 2004 Yoshiki Tsunesada¶ ↑

• The methods Vector.graph and GSL::graph improved.

• Added sample scripts of special functions and probability distribution functions.

Sat Oct 2 2004 Yoshiki Tsunesada¶ ↑

• Discrete wavelet transform (experimental)

• Presently this is only for CVS trackers, since DWT is not supported in the latest version GSL-1.5.

• Added methods Vector.connect, Vector#connect

Thu Sep 30 2004 Yoshiki Tsunesada¶ ↑

• The methods Vector#[] and Vector#[]= accept an index of negative integer. For example, v returns the last element of the vector v, v does the second last, and so on.

Fri Sep 24 2004 Yoshiki Tsunesada¶ ↑

• Fixed bug in Sf::legendre_Ql

Wed Sep 1 2004 Yoshiki Tsunesada¶ ↑

• Version 1.5.2

Fri Aug 27 2004 Yoshiki Tsunesada¶ ↑

• Experimental implementation of GNU plotutils graph and GNUPLOT interfaces

• Added unary minus operators for GSL::Vector, GSL::Matrix

Thu Aug 19 2004 Yoshiki Tsunesada¶ ↑

• Added class GSL::Matrix::Int

• Correct descriptions of GSL::Matrix#get_row, get_col

• Changed behaviour of methods NArray#to_gv, NArray#to_gm, added methods NArray#to_gv_view, NArray#to_gm_view

Wed Aug 18 2004¶ ↑

• Added method GSL::set_error_handler

Tue Aug 17 2004¶ ↑

• Version 1.5.1

Sat Aug 14 2004 Yoshiki Tsunesada¶ ↑

• Changed behaviour of the methods Odeiv::Evolve#apply, Odeiv::Solver#apply

• Fixed bug in GSL::Histogram#get

• Fixed buf in GSL::Vector#matrix_view_with_tda

• Added class GSL::Vector::Int

• Added test suite

Wed Aug 11 2004 Yoshiki Tsunesada¶ ↑

• Fixed bug in GSL::Sf::legendle_Ql_e

• Fixed bug in GSL::MultiFit.linear

Tue Aug 10 2004 Yoshiki Tsunesada¶ ↑

• Fixed bugs in GSL::Cdf::gumbel2_P, gumbel2_Q

• Version 1.5.0

Fri Aug 6 2004 Yoshiki Tsunesada¶ ↑

• Fixed bug in Histogram2d.new_uniform

4.Aug.2004¶ ↑

• Correct source code errors in interp.c, multifit.c

2.Aug.2004¶ ↑

• Added methods GSL::Vector#dot (inner product)

• Added classes GSL::Vector::Col < GSL::Vector, GSL::Vector::Col::View < GSL::Vector::Col

1.Aug.2004¶ ↑

• Version 0.9.9

30.Jul.2004¶ ↑

• Added methods GSL::Rng.default_seed, GSL::Rng.default_seed=(seed)

26.Jul.2004¶ ↑

• Cumulative distribution functions

• Changed module path GSL::Ran:: —> GSL::Cdf

• Constants GSL::VERSION, GSL::RUBY_GSL_VERSION defined

24.Jul.2004¶ ↑

• Experimental implementation of discrete wavelet transforms (tests/wavelet)

22.Jul.2004¶ ↑

• Elementary functions as GSL::sin now can take argument of Integer, Float, Array, Vector or Matrix.

• Strict type check

20.Jul.2004¶ ↑

• Added methods GSL::heapsort, Vector#heapsort, Vector::Complex#heapsort

• Added methods GSL::heapsort_index, Vector#heapsort_index, Vector::Complex#heapsort_index

• version 0.9.4

18.Jul.2004¶ ↑

• Added missing functions GSL::Sf::legendre_Ql

• Added missing functions GSL::Sf::psi_e

• Added missing functions GSL::Sf::zetam1, zetam1_int

17.Jul.2004¶ ↑

• Added GSL::Eigen::Symmv::sort, GSL::Eigen::Hermv::sort

• Update GSL::Monte

15.Jul.2004¶ ↑

• Version 0.9.2

• Added methods Matrix#each_row, Matrix#each_col

• Added methods Matrix::Complex#each_row, Matrix::Complex#each_col

• Fixed bug in Complex::polar

• Fixed bug in Complex#abs, arg, abs2, logabs

13.Jul.2004¶ ↑

• Added Matrix#trace, Matrix::Complex#trace

11.Jul.2004¶ ↑

• version 0.9.0

• Householder Transformations

• LU decomposition for complex matrices

• All the GSL functions implemented.

10.Jul.2004¶ ↑

• Blas level 3

• Fixed GSL::Vector::sort_index

8.Jul.2004¶ ↑

• Correct document on random distributions

7.Jul.2004¶ ↑

• Fixed bug in the method GSL::Sf::coulomb_wave_sphF_array

6.Jul.2004¶ ↑

• GSL 1.5 support

• Fixed a bug in the method GSL::Sf::bessel_sequence_Jnu_e

5.Jul.2004¶ ↑

• Compile test with -Wall option:

  • remove unused variables, check missing prototype declarations

• Fixed a bug in the method GSL::Multimin::test_size (wrong binding)

30.Jun.2004¶ ↑

• ver 0.4.7

28.Jun.2004¶ ↑

• Switch rb_f_lambda() and rb_block_proc(), for proper ruby version.

20.Jun.2004¶ ↑

• Added Linalg::balance_comlumns(A, D) and Matrix#balance_columns(D)

• BLAS support

  • Level 1

  • Level 2

19.Jun.2004¶ ↑

• Support gsl-1.4.90

  • Added Stefan-Boltzmann constant, Thomson scattering cross section

  • Module Deriv

13.Jun.2004¶ ↑

• Fixed a bug in the sample script integration/friedmann.rb

• Improved interfaces of polynomial equations

• Correct the document on GSL::Complex

10.Jun.2004¶ ↑

• ver 0.4.2

• The module GSL::Math removed

• The module name GSL::Const is changed to GSL::CONST

09.Jun.2004¶ ↑

• ver 0.4.1

• Add random number generators borosh13, coveyou, fishman18, fishman20, fishman2x, knuthran, knuthran2, lecuyer21, waterman14.

• Correct the documentation on random number generators

• Add functions expint_E1_scaled,expint_E2_scaled, and others

• Add methods Rng::fwrite, fread

• Add function binomial_tpe

05.Jun.2004¶ ↑

• 0.4.0

02.Jun.2004¶ ↑

• rb_gc_mark

• Implemented simulated annealing, Ntuples

25.Apr.2004¶ ↑

• Vector, Matrix, Matrix::Complex coerce

24.Apr.2004 version 0.3.11¶ ↑

• GSL::Complex, coerce

22.Apr.2004 version 0.3.10¶ ↑

• polish sources of special functions

18.Apr.2004, version 0.3.9¶ ↑

• bug fix Eigensystems, Interpolation

16.Apr.2004¶ ↑

• bug fix Vector, Matrix, Linalg

14.Apr.2004, version 0.3.8¶ ↑

• N-tuples

• Improvement in NArray object conversions (thanks to S. Nishizawa)

13.Apr.2004¶ ↑

• Poly divided-difference reporesentation, Taylor expansion

• Apply patch by S. Nishizawa, for type checks in C code, and some modifications in sample scripts

12.Apr.2004, version 0.3.7¶ ↑

• Add mathematical functions ldexp, frexp

• Add gsl_sf_hazard function

• QRng bug fix

• GSL::Stats module

version 0.3.6¶ ↑

• Monte-Carlo integration

version 0.3.5¶ ↑

• Multidimensional minimization

version 0.3.4¶ ↑

• Combinations, One dimensional minimization, Multidimensional root-finding

version 0.3.3¶ ↑

• Nonlinear least-squared fitting

versoin 0.3.2¶ ↑

• Least-squared fitting

version 0.3.1¶ ↑

• One dimensional root-finding

version 0.3.0¶ ↑

• FFTs, Ordinary differential equations

2002 version 0.2.5¶ ↑