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initial import of Math::MatrixReal 2.02
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leto
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Oct 19, 2007
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| Changes in v2.02 - leto | ||
| Sat Jun 09 12:29:08 EDT 2007 | ||
| ---------------------------- | ||
| * Fixed the overloading for the division operator which did not recognize $a/2, reported | ||
| by Daniel Brooks <db48x@yahoo.com> | ||
| * Added support for matrix division notation, so that $a/$b = $a*$b**(-1) when $a and $b are square matrices | ||
| * t/div.t created | ||
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| Changes in v2.01 - msouth | ||
| Fri Aug 19 23:40:24 EDT 2005 | ||
| ---------------------------- | ||
| * Changed versioning format to leading zero after the | ||
| dot to make more minor versions possible this time | ||
| * Integration of Math::MatrixReal::Ext1 0.07 | ||
| * merged new_from_cols and new_from_rows into one private | ||
| function which is called by wrappers with the old | ||
| names | ||
| * added tests to exercise all of the known failure modes | ||
| in new_from_{rows,cols} calls | ||
| * Fixes for POD | ||
| * added a much needed =over 4 to the start of the POD | ||
| * removed tabs | ||
| * reformatted indentation of the all of the code to 4 space | ||
| indent (from a mixture of tabs, 8 space, 4 space, and 2 space) | ||
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| Changes in v1.9 - leto | ||
| Wed May 15 03:19:34 EST 2002 | ||
| ---------------------------- | ||
| * as_yacas() function added | ||
| * t/yacas.t created | ||
| * Fixed issue with infinity norm and Irix, thanks to | ||
| Allen Smith <easmith@beatrice.rutgers.edu> and the CPAN testers | ||
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| Changes in v1.8 -- leto | ||
| Sat Mar 23 00:13:48 EST 2002 | ||
| ---------------------------- | ||
| * as_matlab() function added | ||
| * as_scilab() function added | ||
| * t/matlab.t created | ||
| * is_row_vector() function added | ||
| * is_col_vector() function added | ||
| * t/isrowcol.t created | ||
| * norm_p() function added | ||
| * norm_frobenius () function added | ||
| * t/vecnorm.t created | ||
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| Changes in v1.7 -- leto | ||
| Fri Mar 15 13:09:49 EST 2002 | ||
| --------------------------- | ||
| * each() and each_diag() are now one-based for consistency | ||
| * removed _trace() comments | ||
| * as_latex() function created | ||
| * t/latex.t created | ||
| * t/bool.t created | ||
| * t/periodic.t created | ||
| * t/rank.t created | ||
| * new_from_string() shouldn't care about the case of the scientific E | ||
| notation (pointed out by Jim Bowery <jim_bowery@hotmail.com>) | ||
| * t/scinotation.t created | ||
| * is_idempotent() function added | ||
| * is_periodic() function added | ||
| * rank_LR() function added | ||
| * make is_orthogonal return 0 instead of croak when matrix | ||
| is not quadratic | ||
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| Changes in v1.6 -- leto | ||
| Sat Feb 16 09:46:51 EST 2002 | ||
| ------------------------- | ||
| * is_skew_symmetric() function added | ||
| * fixed logic error is sym_eigenvalues ( didn't notice if not square! ) | ||
| * spectral_radius() function added | ||
| * is_binary() function added | ||
| * is_LR() function added | ||
| * t/spectral.t created | ||
| * t/binary.t created | ||
| * t/is_LR.t created | ||
| * t/gramian.t created | ||
| * is_skew_symmetric() tests added to t/symmetric.t | ||
| * is_gramian() function added | ||
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| Changes in v1.5 -- leto | ||
| Sat Jan 12 04:20:48 EST 2002 | ||
| ------------------------- | ||
| * t/inverse.t test 6 was numerically instable, commented out | ||
| I ran it 10000 times and got values from 1e-2 to 1e-16, | ||
| this caused the test to randomly fail, because it checked | ||
| that the value was less than 1e-10 | ||
| I did not notice this problem because my default perl install | ||
| has USE_LONG_DOUBLE | ||
| * changed epsilon to be 1e-8 in funcs.pl ( was 1e-10) | ||
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| Changes in v1.4 -- leto | ||
| Jan 10 2002 | ||
| -------------------------- | ||
| * Steffen Beyer gave maintainer-ship to Jonathan Leto | ||
| * exponent() function added | ||
| * trace() function added | ||
| * "**" and "**=" overloaded to exponent() | ||
| * $matrix ** -1 is now a quick way to compute the inverse, if it exists | ||
| * new_from_rows and new_from_cols integrated from Math::MatrixReal::Ext1 | ||
| * is_diagonal() function added | ||
| * is_tridiagonal() function added | ||
| * each() function added | ||
| * each_diag() function added | ||
| * put functions used by all the test scripts into funcs.pl instead | ||
| of all of them having copy+paste code | ||
| * t/inverse.t created | ||
| * t/diag.t created | ||
| * t/exponent.t created | ||
| * t/trace.t created | ||
| * t/ext1.t created | ||
| * some documentation spelling errors corrected | ||
| * perl operators exp(),sin(),cos() overloaded | ||
| only works with diagonal matrices for now | ||
| * new_diag() function added | ||
| * is_upper_triangular() function added | ||
| * is_lower_triangular() function added | ||
| * t/triang.t created | ||
| * t/det.t created | ||
| * inverse() function added | ||
| * det() function added | ||
| should be much faster for diagonal and triangular matrices | ||
| * tri_diagonalize() tri_eigenvalues() and now do real tridiag check, as per TODO | ||
| * t/minor.t created | ||
| * t/cofactor.t created | ||
| * t/adjoint.t created | ||
| * t/quadratic.t created | ||
| * norm_sum() function added | ||
| * t/norm.t created | ||
| * check if $rows and $cols are integers in new() | ||
| * t/condition.t created | ||
| * t/product.t created | ||
| * eigenvalues() function added | ||
| * t/eigen_NxN.t - added test for eigenvalues() | ||
| * swap_row() function added | ||
| * swap_col() function added | ||
| * t/swap.t created | ||
| * t/orthogonal.t created | ||
| * is_orthogonal() function added | ||
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| Many people deserve recoginition for their help with Math::MatrixReal: | ||
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| * Many thanks to Steffen Beyer <sb@engelschall.com> himself for being very | ||
| open to third-party additions. (Of course, this acknowledgment is due to Rodolphe. :-) | ||
| Steffen Beyer released the original Math::MatrixReal and maintained it | ||
| until v1.3a5, then handed off to Jonathan Leto <jonathan@leto.net>. | ||
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| * Rodolphe Ortalo <ortalo@laas.fr> for many contributions. | ||
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| * As always, many thanks to Andreas Koenig <andreas.koenig@mind.de> | ||
| for his relentless support and efforts as upload manager of the CPAN! | ||
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| * Also many thanks to Stu Smith <stu@cs.uml.edu> for raising the questions | ||
| concerning the "new_from_string()" method (whose documentation was mis- | ||
| leading and incomplete)! | ||
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| * Mike South <msouth@fulcrum.org> for the new_from_cols() and new_from_rows() functions | ||
| that were integrated from Math::MatrixReal::Ext1 | ||
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| * Everybody involved with CPAN Testers, thanks guys/gals! | ||
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| Current Maintainer: Jonathan Leto <jonathan@leto.net> | ||
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| Some goals for Math::MatrixReal: | ||
| -------------------------------- | ||
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| o Correctness is more important than speed | ||
| o Test all methods, at least once | ||
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