* The core LP solver based on the dual simplex method was
re-implemented and now it provides both phases I and II.
* New API routines.
* For description of these new routines see the reference manual
included in the distribution.
* The following API routines are deprecated:
lpx_scale_prob, lpx_std_basis, lpx_adv_basis, lpx_cpx_basis.
* Necessary changes were made in memory allocation routines to
resolve portability issues for 64-bit platforms.
* New version of the routine lpx_write_pb to write problem data
in OPB (pseudo boolean format) was added to the package.
* Two new makefiles were added to build the package for 32- and
64-bit Windows with Microsoft Visual Studio Express 2008.
* Two new makefiles were added to build the package with Digital
Mars C/C++ 8.50 and Open Watcom C/C++ 1.6 (for 32-bit Windows).
Pkgsrc changes:
* Update MASTERE_SITES (Thanks for Zafer Aydogan) and HOMEPAGE.
* add DESTDIR support
NEWS in 1.0.3
* Improvement of `frame' and `box' commands.
NEWS in 1.0.2
* `disc' point shape.
* Makefile improvement.
NEW FEATURES
o sprintf() returns elements of the result in UTF-8 when the
format or any character input has a corresponding element
declared as UTF-8. Similarly for paste(), elements of the
result are in UTF-8 when any input to that element is declared
as UTF-8.
o axis() has new arguments 'col.ticks' and 'lwd.ticks' to allow
the colour and line width of ticks to be set separately from
that of the line (e.g. to set one or the other to transparent
or zero width).
o legend() has a new argument 'box.col' to set the colour of the
enclosing box.
o legend() gains a 'xpd' argument to make it easier to place a
legend in the margins or outer margins.
o stripchart() now passes '...' to title() (as well as to
plot.default() and axis()). (Wish of PR#12202)
o help.search() has new argument 'searchEngine' to go
directly to the search form: this is needed by users of
Firefox 3 to workaround a bug in interpreting the search
results pages.
+ BUG FIXES
2.7.1 NEW FEATURES
o tools::texi2dvi() has a new argument 'texinputs' to allow the
TeX and bibtex input paths to be specified (even on MiKTeX).
o dev.copy2pdf() gains an 'out.type' argument to allow it to be
used with cairo_pdf() or quartz(type = "pdf").
o poly() has additional checks against user error (as in PR#11243).
o The Mac OS quartz() device draws contiguous lines much faster.
o A field containing just a sign is no longer regarded as numeric
(it was on all platforms in 2.7.0, but not on most in earlier
versions of R). Similarly, '.' is now always non-numeric.
o CITATION files are now read in Latin-1: quite a few were
failing if used in a multibyte locale such as UTF-8.
o The DESCRIPTION file of a package can specify an 'OS_type' field
as either 'unix' or 'windows' to confine installation to that
OS type.
o HoltWinters() now uses optimize() rather than optim for
one-parameter problems which should be more reliable (PR#11469).
o axis() now respects the setting of par("xpd") when clipping.
o The 'factor' method of format() now preserves names, dims and
dimnames in the same way as for character and numeric inputs.
(PR#11512)
o read.DIF(*, transpose=TRUE) now allows to correctly read DIF files
produced by some versions of Excel.
DEPRECATED & DEFUNCT
o The use of unserialize() on character strings is deprecated:
that was a format used in R < 2.4.0.
o The use of embedded nuls in character strings is deprecated:
They will no longer be allowed in R 2.8.0.
UTILITIES
o R CMD check checks for possible check directories in the
sources -- in mid-2008 there were about 20 examples on CRAN.
o R CMD build tries harder to clean up the inst/doc directory
from the remnants of earlier builds.
It also removes any directories with extension .Rcheck, and
files .DS_Store and ._* (created by tar on Mac OS X under some
circumstances: it now sets environment variables to ask for
such files not to be created by that tar.)
+ BUG FIXES
Packaged by Aleksej Saushev through the pkgsrc-wip project.
OpenAxiom is an open source platform for symbolic, algebraic,
and numerical computations. It offers an interactive environment,
an expressive programming language, a compiler, a large set of
mathematical libraries of interest to researchers and practitioners
of computational sciences.
OpenAxiom strives to support ubiquitous, advanced, high quality
open source computer algebra on major operating systems,
in particular major Unix variants, GNU/Linux variants, Windows,
and handheld devices. It aims at being the open source computer
algebra system of choice for research, teaching, engineering, etc.
Submitted by Aleksej Saushev in PR pkg/39404.
Changes since Maxima 5.15
Major changes:
* ECL can build Maxima via autoconf machinery
Other revisions:
* Revision and extension of code for exponential integral functions
* Revision and extension of code for hypergeometric functions
* share/contrib/amatrix: revisions
* share/contrib/gf: bug fixes
* share/contrib/sarag: revisions
* share/contrib/zeilberger: revisions
* share/contrib/graphs: revisions
* share/contrib/distrib: revisions and new test script
* share/contrib/maximaMathML: revisions
* share/tensor: additional demonstrations
* Patches for Lispworks and MCL
* Revisions and extensions of reference manual and its translations
Plus various bug fixes.
* glpspx.h, glpspx03.c, glpapi06.c
The primal simplex solver (spx_prim_opt, spx_prim_feas) was
replaced by a new implementation (spx_primal), which currently
provides the same features as the old version.
* glpmpl01.c, glpmpl03.c
Some changes were made in the MathProg translator to allow <,
<=, >=, and > on comparing symbolic values.
* glplpx10.c
Internal routine set_d_eps in the exact LP solver was changed
to prevent approximation errors in case of integral data.
Pkgsrc changes:
o Changed MAINTAINER to pkgsrc-users@ as per communication with maintainer
Upstream changes:
0.63 2008-07-21
- minor tweak in union(); added tests
0.62 2008-07-20
- fixed a problem in union() that caused first() to return a wrong result.
reported by David Gang
Pkgsrc changes:
o Change MAINTAINER to pkgsrc-users@ as per communication with maintainer
Upstream changes:
1.02 2008-07-30
* The 1.01 distribution tarball was broken; this is what it should
have been.
1.01 2008-07-30
* Relicensed on request from the old Artistic License to "the same
terms as Perl itself" (i.e. new Artistic/GPL).
(No functional changes.)
Changes from version 2.3.0 to version 2.3.1:
- Changes in the behavior of mpfr_strtofr and in its documentation
concerning particular cases where the code and the documentation
did not match.
- Bug fixes; see <http://www.mpfr.org/mpfr-2.3.0/#bugs>.
- Configure test for TLS support.
- Improved MPFR manual.
2.010800:
Test suite was sub()ifying argument to sumnuminit().
Test suite would not correctly sub()ify intnum() if limits had "()".
Test suite calculated Pi Euler too early; Now only these fail
t/55_intnum.t 51 1 1.96% 12
t/55_ploth.t 34 1 2.94% 4
# eval-noans: $oo=[ PARI(1) ];
# eval-noans: setprecision(96)
# eval-noans: $tab=intfuncinit($t,[-$oo,4.5],[$oo,4.5], sub{gamma(2+ I*$t)**3},1);
# eval: intmellininvshort(2,4,$tab)-$A
not ok 12 # in='intmellininvshort(2,4,$tab)-$A'
# out='-0.00162288630645762090148373314245888997812239836220952087633884330352714288074453852820714919691012-6.88133524E-101*I', type='Math::Pari'
# pari==='-3.072350108 E-97 + 9.90717831 E-100*I'
# re_out='\-3\.072350108,?\s*E\-97,?\s*\+,?\s*9\.90717831,?\s*E\-100\*I'
Why this succeeds?
# eval: intnum($x,-1,1, sub{intnum($y,-sqrt(1-$x**2),sqrt(1-$x**2),$x**2+$y**2,$tab)},$tab)- Pi/2
Actually, $x**2+$y**2 is converted to a string as in '0.09+y^2',
which is interpreted by GP/PARI.
Add warnings to the test suite for detection of #@_
in Perl-in-PARI-in-Perl calls.
Attempt to support v5.10 (based on code contributed by ???)
Pkgsrc change:
o Convert to using Module::Build.
Upstream changes:
Changes in v2.05 - leto
Fri Feb 29 21:58:47 EST 2008
----------------------------
* fix accidental use of "our" that broke old (like 5.5) Perl's
Thanks to srezic@cpan.org for the first FAILed report
* added $matrix->display_precision($n) to easily change the output
to something a bit easier to read
$a->display_precision(0)
is useful for printing integer matrices nicely
* NEED print_precision() docs near stringify
* t/display_precision.t created
* example/ directory created with some benchmark scripts
Changes in v2.04 - leto
Sat Feb 23 20:59:08 EST 2008
---------------------------
* fixed pod errors
* $a->length does row+col vectors now
* converted all tests except ext1.t to Test::More and added
some overall Kwalitee
* fixed error with doing $string = $matrix . "\nStuff\n";
* new funcion new_tridiag
* $matrix->min and $matrix->max now return the min/max element of a matrix
* new function new_random added which looks like (with default
options shown)
# returns $n x $m matrix of real numbers between 0 and 10
new_random($n,$m, { symmetric => 0, tridiag => 0, bounded_by => [0,10], integer => 0 )
new_random($n, %options ) # returns a square matrix
This has proven to be pretty useful in the unit tests of
Math::MatrixReal so I figured others may want an easy way to
generate a random matrix of your own flavor
* t/rand.t created
* t/tridiag.t created
* t/stringify.t created
* t/minimax.t created
* t/positive.t created
* t/gsm.t created
* t/similar.t created
Changes in v2.03 - leto
Sun Jan 27 13:19:55 EST 2008
---------------------------
* now using Module::Build, so Math::MatrixReal should in theory be able to
compile on systems without make, please test and let me know!
* new concatenation operator ".", i.e $c = $a . $b concatenates two
matrices side-by-side
* t/concat.t created
* new function assign_row
* beginning of a test suite overhaul (converting to Test::More )
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
2.22 July 19 2008 - Minor Beta
+ Added JPEG support.
+ Added 29_process_jpg.t test for jpg dimension processing.
+ Turned off compatibility_mode() in Spreadsheet::WriteExcel::Big
which was on by accident.
+ Added "Warning about Office Service Pack 3" section to the
docs to explain Excel warnings with duplicate data.
+ Expanded "Dates and Time in Excel" section of the docs.
+ Added isa() to _process_images() to allow subclassing.
Reported by David Worenklein.
Pure Perl implementation of the Mersenne Twister algorithm as
implemented in C/XS in Math::Random::MT. The output is identical
to the C/XS version. The Mersenne Twister is a 32 bit pseudorandom
number generator developed by Makoto Matsumoto and Takuji Nishimura.
The algorithm is characterised by a very uniform distribution but
is not cryptographically secure. What this means in real terms is
that it is fine for modeling but no good for crypto.
Patch provided by Aleksej Saushev in PR 38884.
5.1.22
Interface
* [DC] mention object type when asking for user's confirmation on delete
Parser
* [ES] added "LINCONV(set1, set2)" command - an equivalent of
Transformations->Linear convolution
* [ES] added "VOIGT(gamma, sigma, x)" function (rep. #2144)
Bug fixes
* [ES] in the grace_np library GraceClose() could kill all user processes
if by that time the Grace subprocess has exited (rep. #2035)
* [ES] certain hand-modified settings in project files might cause the GUI
crash (incl. rep. #2139)
* [ES] ungraceful closing of anonymous pipes could result in high CPU load
5.1.21
Functionality
* [ES] added IsoLatin5 (ISO 8859-9) encoding file
* [ES] now honor locale in number stringifications (rep. #2109)
* [ES] extended range of prefixes in the Engineering format up to 10^{+/-24}
* [HR] added "Computing" tick label format
Interface
* [ES] added "-maxpath" command line option for setting maximal drawing
path length
* [ES] allow for longer legend lines
Parser
* [ES] added "KILL BLOCK" command (deallocates the memory of the current
block data)
Bug fixes
* [ES] there was a misleading error message when attempting to redefine an
existing variable/keyword in the parser
* [ES] fixed rounding-off problem with zero labels (rep. #2098)
Portability/Compilation
* [IG] eliminated some of gcc-4.1 warnings (rep. #2111)
* [IG] man page cleaned (rep. #2110)
5.1.20
Parser
* [ES] added SGN() function
Defaults
* [ES] changed default major tick spacings to 0.2
Bug fixes
* [ES] command argument "-graphtype pie" wasn't recognized (rep. #2058)
* [ES] fixed openning of help documents when using an external browser
* [ES] "Geometric transforms" with order: "Rotate, scale, translate" in fact
was doing "Translate, scale, rotate"
* [ES] Grace might crash when using "Engineering" tick label format
(rep. #2094)
* [ES] file selection dialog wasn't closed when fit parameters file was
read in successfully
5.1.19
Functionality
* [ES] BARDY and BARDYDY sets are now allowed in XY graphs
Bug fixes
* [RL] loading a DL module could fail with an irrelevant error message
(rep. #2071)
* [ES] a bug in the PS driver caused CUPS to output empty page if printing
accounting was enabled in foomatic (rep. #2047)
* [ES] automatic data point purging (enabled when set length exceeds "Max
drawing path length" in Edit/Preferences) could fail silently
(rep. #2069)
* [ES] the point purging could result in wrong set filling when fill to
the baseline was selected
* [ES] configure's option --with-helpviewer was broken (rep. #1414)
5.1.18
Parser
* [ES] implemented concatenation of quoted strings and numerical expressions
Bug fixes
* [ES] some X font configurations could make Grace crash (rep. #1436)
* [ES] DEFAULT ... commands had no effect on new drawing objects (including
rep. #1437)
* [ES] DEFAULT CHAR SIZE had no effect on tick labels of new axes
5.1.17
Drivers
* [ES] changed default resolution of the PDF driver to 300 dpi
Documentation/Info
* [ES] minor documentation updates, including rep. #1421
Bug fixes
* [ES] with page fill disabled, the page frame line might be drawn with
wrong properties
* [ES] due to a bug in the Xbae widget, when a TrueType font was used,
several dialogs could become unusable (including rep. #1366)
* [ES] enabling patterned fills and PDF-1.4 compatibility mode could result
in crash when printing to PDF
5.1.16
Interface
* [ES] set scrolling of the custom ticks/labels table to 1 row per
click (rep. #1419)
Documentation/Info
* [ES] updates relevant to the status of mailing lists/forums
Portability/Compilation
* [ES] PDF driver updated to work with PDFlib-6 (rep. #1426). Minimal
supported version is now 5.0
Drivers
* [ES] added option to generate PDF-1.4 format (Acrobat5). Support for
PDF-1.2 (Acrobat3) removed
Bug fixes
* [ES] replaced meaningless error message issued when trying to load data
with a few string columns as a single set
* [ES] in the spreadsheet editor, the last entered cell's data wasn't
committed (rep. #1420)
5.1.15
Functionality
* [ES] increased max number of custom tick marks/labels to 256 per a
popular demand
Project files
* [ES] now using one-line format for saving graph's world and viewport
settings
Defaults
* [ES] changed default external help viewer to mozilla
Documentation/Info
* [ES] misc documentation updates (including rep. #1411)
Bug fixes
* [ES] fixed crash when number of custom tick marks/labels exceeded 100
* [ES] fixed evaluation of FWHM in "Feature extraction" (old version
might produce wrong results for multi-peak data)
* [ES] support for loadable functions of 4 and 5 parameters, introduced
in 5.1.14, was incomplete
* [ES] in correlation/covariance, only the absolute value at 0 is
normalized to 1, so for anti-correlation the sign is preserved
2.21 March 9 2008 - Major
! Fixed bug where UTF-8 strings in formulas weren't handled.
Thanks Sergey Zhuravlev.
http://rt.cpan.org/Public/Bug/Display.html?id=30368
! Fixed collapse outlines compatibility with Gnumeric
and OpenOffice.org.
Reported by Barrie Slaymaker.
http://rt.cpan.org/Public/Bug/Display.html?id=33662
+ Added outline_collapsed.pl example.
+ Added document section about rewriting Excel files.
+ Minor security fix to Format to avoid eval and
additional fix for RT 24218.
Thanks to Bram.
+ Added increased compatibility with third party
Excel reading applications such as POI.
+ Added optional compatibility_mode() to fix problems
that can occur with Office SP3.
+ Fixed compatibility problem with Google Docs.
+ Added set_start_page() method for setting the start page
number when printing.
2.20 October 6 2007 - Major
+ Added autofilter() and filter_column() method and
autofilter.pl example.
+ Added embed_chart() method to allow extracted chart
templates to be embedded in a worksheet.
Added demo4.pl and demo5.pl examples.
+ Added the insert_image() method and proper Excel 97
style image handling for PNG and BMP.
Images now work with Gnumeric and OpenOffice.
insert_bitmap() is now deprecated.
! Made pane split optional when calling freeze_panes().
Also renamed thaw_panes() as split_panes(). The old
method name is still available, but deprecated.
! Renamed write_unicode() and write_unicode_le() methods
to the more explicit write_utf16be_string() and
write_utf16le_string(). The old method names are
still available, but deprecated.
2.19 June 14 2007 - Major
+ Beta testing only. Not released to CPAN.
Major changes since 1.9.2:
* GSL-1.10 support
* Generalized eigensystems
* Cholesky routines to complex matrices
* and more
* NDLINEAR extension support: multi-linear,
multi-parameter least squares fitting
This program is used to find Mersenne Prime numbers. See
http://www.utm.edu/research/primes/mersenne.shtml for a good
description of Mersenne primes. Mersenne numbers can be proved
composite (not prime) by either finding a factor or by running
a Lucas-Lehmer primality test.
This program is used to find Mersenne Prime numbers. See
http://www.utm.edu/research/primes/mersenne.shtml for a good
description of Mersenne primes. Mersenne numbers can be proved
composite (not prime) by either finding a factor or by running
a Lucas-Lehmer primality test.
