[53c00b] | 1 | @comment -*-texinfo-*- |
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[695850] | 2 | @comment $Id: NEWS.texi,v 1.53 2005-10-28 14:05:46 Singular Exp $ |
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[53c00b] | 3 | @comment this file contains the News about Singular versions |
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| 4 | @comment Unix |
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| 5 | @ifclear VERSION |
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| 6 | @include version.texi |
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| 7 | @end ifclear |
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| 8 | |
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| 9 | @majorheading NEWS in SINGULAR @value{VERSION} |
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| 10 | |
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[e62563a] | 11 | @ifclear singularmanual |
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[53c00b] | 12 | @macro nref{what} |
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| 13 | \what\ |
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| 14 | @end macro |
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| 15 | @end ifclear |
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| 16 | |
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| 17 | @ifset singularmanual |
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| 18 | @macro nref{what} |
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| 19 | @ref{\what\} |
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| 20 | @end macro |
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| 21 | @end ifset |
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| 22 | |
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[695850] | 23 | The version 3-0-0 is the first in the new |
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[a02163] | 24 | release series version 3-0. |
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[5c14fb] | 25 | |
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[a02163] | 26 | Singular version 3 has a greater functionality and an improved architecture. |
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| 27 | Major new features are: |
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| 28 | @itemize |
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| 29 | @item |
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[745dd8] | 30 | @nref{Dynamic modules} |
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[a02163] | 31 | @item |
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[3175d1] | 32 | non-commutative extension @nref{PLURAL} |
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[a02163] | 33 | @item |
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[745dd8] | 34 | name spaces (@nref{package}) |
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[a02163] | 35 | @item |
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[745dd8] | 36 | easy manipulation of rings (@nref{ringlist}) |
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[a02163] | 37 | @item |
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[745dd8] | 38 | improved speed of maps (@nref{subst}, @nref{map}) |
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[a02163] | 39 | @item |
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[012bbb] | 40 | variant of Faugeres F4: @nref{slimgb}. |
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| 41 | @item |
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[a02163] | 42 | improved factorization (integration of NTL, factorization over algebraic extensions, |
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| 43 | zeroset.lib) |
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| 44 | @item |
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| 45 | improved gcd of polynomials (including bug fixes) |
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| 46 | @item |
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| 47 | ports to more architectures including automatic building from source (fink on Mac, ebuild on Gentoo) |
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| 48 | @item |
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[4a499b] | 49 | more help browsers supported, user extendable (help.cnf) |
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| 50 | @item |
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| 51 | better support of graded modules |
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[a02163] | 52 | @item |
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| 53 | many bugs fixed |
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| 54 | @end itemize |
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| 55 | Besides theses internal changes, Singular version 3 offers many new |
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| 56 | features and functionalities (which were partly already incorporated in |
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[4a499b] | 57 | the 2-1 pre-release series). |
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[2983b3] | 58 | |
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[98b5a7] | 59 | @heading Factorizing algorithms revisited |
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| 60 | Starting with version 2-0-4, we use NTL (of Victor Shoup) for factoring |
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[4a499b] | 61 | univariate polynomials. The multivariate factorization code in libfac/factory |
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| 62 | now also works over algebraic extension fields. |
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[2983b3] | 63 | |
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[53c00b] | 64 | @heading New @sc{Singular} libraries |
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| 65 | |
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| 66 | @table @asis |
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[3175d1] | 67 | @item @nref{control_lib} |
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| 68 | algebraic analysis tools for System and Control Theory |
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| 69 | @item @nref{mregular_lib} |
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| 70 | procedures for computing the Castelnuovo-Mumford regularity |
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| 71 | @item @nref{mprimdec_lib} |
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[a02163] | 72 | procedures for primary decomposition of modules |
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[3175d1] | 73 | @item @nref{gmspoly_lib}, @nref{gmssing_lib} |
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[af847a] | 74 | procedures for the Gauss-Manin connection of a singularity |
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[c1bedf] | 75 | @item @nref{resolve_lib}, @nref{reszeta_lib} |
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[4a499b] | 76 | resolution of singularities and applications |
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[1c981c] | 77 | @item @nref{rootsmr_lib} |
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[7acf9b] | 78 | counting the number of real roots |
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[10937b] | 79 | @item @nref{sheafcoh_lib} |
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| 80 | computing cohomology of sheaves and Tate resolution |
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[7acf9b] | 81 | @item @nref{signcond_lib} |
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| 82 | computing realizable sign conditions |
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[67f7108] | 83 | @item @nref{rootsur_lib} |
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[7acf9b] | 84 | counting number of real roots of univariate polynomial |
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[8c78f0] | 85 | @item @nref{grwalk_lib} |
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[7acf9b] | 86 | Groebner and Pertubation walk |
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[53c00b] | 87 | @end table |
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| 88 | |
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[5c14fb] | 89 | @heading Changes in @sc{Singular} libraries |
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| 90 | Many procedures were moved into different libraries, |
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[a02163] | 91 | the documentation of libraries was generally improved. |
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[7031a2] | 92 | |
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| 93 | All procedures which used to change the current ring return now |
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| 94 | the newly created ring. |
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[5c14fb] | 95 | @table @asis |
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| 96 | @end table |
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| 97 | |
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[53c00b] | 98 | @heading New @sc{Singular} functions |
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| 99 | |
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| 100 | @table @asis |
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[7031a2] | 101 | @item @nref{ringlist} |
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| 102 | manipulation of rings |
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| 103 | @item @nref{slimgb} |
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| 104 | variant of the F4 algorithm to compute Groebner bases |
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| 105 | @item @nref{exportto} |
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[4a499b] | 106 | transfer an identifier to the specified package |
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[7031a2] | 107 | @item @nref{importfrom} |
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[4a499b] | 108 | generate a copy of an identifier from the specified package in the current package |
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[7031a2] | 109 | @item @nref{frwalk} |
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| 110 | fractal walk to change monomial orderings |
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[53c00b] | 111 | @end table |
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| 112 | |
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| 113 | @heading @sc{Singular} functions whose syntax/semantics has changed |
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| 114 | @table @asis |
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[a02163] | 115 | @item @nref{degree} |
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| 116 | outputs degree and dimension instead of returning an int |
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| 117 | @item @nref{attrib} |
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| 118 | new attribute: @code{rowShift} |
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[8d38069] | 119 | @end table |
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| 120 | |
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[3175d1] | 121 | @heading Noncommutative Extension @sc{Plural} |
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| 122 | |
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| 123 | Starting with version 3-0-0, @sc{Singular} features a |
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| 124 | noncommutative extension @sc{Plural}. It allows to |
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| 125 | set and to compute within noncommutative algebras |
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| 126 | with PBW basis. Among available algorithms are Groebner |
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| 127 | bases for left modules, syzygies and resolutions. |
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| 128 | |
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| 129 | Together with @sc{Plural} come the following libraries: |
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| 130 | |
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| 131 | @table @asis |
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| 132 | @item @nref{center_lib} |
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| 133 | computes generators of the center and centralizer subalgebras up |
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| 134 | to a given degree resp. up to a given number of generators |
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[c1bedf] | 135 | @item @nref{involut_lib} |
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[3175d1] | 136 | determines linear antiautomorphisms (involutions) and automorphisms |
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| 137 | @item @nref{gkdim_lib} |
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| 138 | computes a Gel'fand-Kirillov dimension for modules |
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| 139 | @item @nref{ncalg_lib} |
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| 140 | includes ready-to-use funtions for defining many important |
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| 141 | noncommutative algebras |
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| 142 | @item @nref{ncdecomp_lib} |
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| 143 | computes a decomposition of module by its central characters |
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| 144 | @item @nref{ncalg_lib}, @nref{nctools_lib} |
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| 145 | contain numerous useful tools for noncommutative algebras |
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| 146 | @item @nref{qmatrix_lib} |
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| 147 | procedures, related to quantum matrices and minors |
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| 148 | @end table |
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| 149 | |
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[2983b3] | 150 | @heading Internal Changes |
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| 151 | @table @asis |
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[a02163] | 152 | @item new mapping code |
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[3175d1] | 153 | @c @item non-commutative extension (Plural) |
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[4a499b] | 154 | @item factory revised |
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[7acf9b] | 155 | (gcd, factorizing polynomial over algebraic extension fields,...) |
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[2983b3] | 156 | @end table |
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| 157 | |
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[98a386] | 158 | @heading Porting |
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[2983b3] | 159 | |
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[a70441f] | 160 | @itemize @bullet |
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[7acf9b] | 161 | @item Singular is available for ix86-Linux, HPUX_10, |
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| 162 | SunOS-5, IRIX-6, ix86-Win (runs on Windows 95/98/NT4/2000/XP), |
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[a02163] | 163 | FreeBSD, MacOS X, DecAlpha-Linux, x86_64-Linux (AMD64/Opteron/EM64T), |
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| 164 | IA64-Linux |
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[8d38069] | 165 | @end itemize |
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[836dc0e] | 166 | |
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[695850] | 167 | @heading Updates for version @value{VERSION} |
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| 168 | |
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| 169 | The current version @value{VERSION} is mainly a bug fix release, |
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| 170 | but it contains also some new features: |
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[836dc0e] | 171 | @itemize @bullet |
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| 172 | @item |
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| 173 | NTL upgraded to version 5.4 |
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| 174 | @item |
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[695850] | 175 | new library: absfact.lib @nref{absfact_lib} |
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[836dc0e] | 176 | @item |
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| 177 | new procedures in primdec.lib: @nref{absPrimdecGTZ} |
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| 178 | @item |
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[695850] | 179 | new procedures in standard.lib: @nref{weightKB} |
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| 180 | @item |
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[836dc0e] | 181 | build process improved: new make target @code{install_all} |
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| 182 | @item |
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[695850] | 183 | improved version of @nref{slimgb}, incorporated into @nref{groebner} |
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| 184 | @item |
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| 185 | arithmetic in Z/pZ for architecture x84_64 improved (by 25 %) |
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[836dc0e] | 186 | @end itemize |
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