[53c00b] | 1 | @comment -*-texinfo-*- |
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[f302c9] | 2 | @comment $Id: NEWS.texi,v 1.108 2008-10-07 09:05:25 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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[b8169a] | 23 | @heading News for version @value{VERSION} |
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[7d45e3] | 24 | |
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[567eca] | 25 | @itemize @bullet |
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| 26 | @item |
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[09f377] | 27 | new coefficients: Z, Z/m, Z/(2^n) (@nref{Rings and orderings}) |
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[567eca] | 28 | @item |
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[09f377] | 29 | new handling of the default argument in libraries (@nref{Parameter list}) |
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[6b55c7] | 30 | @end itemize |
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| 31 | |
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| 32 | @heading New @sc{Singular} functions |
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| 33 | @itemize @bullet |
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| 34 | @item |
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[cdd38f] | 35 | new command: kernel (@nref{kernel}) |
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| 36 | @item |
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[6b55c7] | 37 | new command: sqrfree (@nref{sqrfree}) |
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[4cf627] | 38 | @item |
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[7f6d93] | 39 | command changed: the first argument to @code{monitor} should be an ASCII link. |
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[4cf627] | 40 | (@nref{monitor}) |
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[6b55c7] | 41 | @end itemize |
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| 42 | |
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| 43 | @heading Internal Changes |
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[cdd38f] | 44 | @itemize @bullet |
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[e8757a] | 45 | @item |
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| 46 | handling of large input for std improved |
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| 47 | @item |
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| 48 | @nref{interred} implemented in a different way |
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| 49 | @item |
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| 50 | @nref{gcd} over algebraic extensions implemented in a different way |
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[6b55c7] | 51 | @item new build target: libsingular.a (for gfan etc.) |
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[7f6d93] | 52 | @item code variants now depend on CPU type, not OS |
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[09f377] | 53 | @item better test for builtin limits (@nref{Limitations}) |
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[cdd38f] | 54 | @end itemize |
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[6b55c7] | 55 | |
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| 56 | @heading New @sc{Singular} libraries |
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| 57 | @itemize @bullet |
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[719d85] | 58 | @item |
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| 59 | new library: redcgs.lib (@nref{redcgs_lib}: Reduced Comprehensive Groebner Systems) |
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[567eca] | 60 | @item |
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| 61 | new library: tropical.lib (@nref{tropical_lib}: Computations in Tropical Geometry) |
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| 62 | @item |
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| 63 | new library: polymake.lib (@nref{polymake_lib}: |
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| 64 | Computations with polytopes and fans, interface to polymake and TOPCOM) |
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| 65 | @item |
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[719d85] | 66 | new library: decodegb.lib (@nref{decodegb_lib}: Generating and solving systems of polynomial equations for decoding and finding the minimum distance of linear codes) |
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| 67 | @item |
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[567eca] | 68 | new library: dmodapp.lib (@nref{dmodapp_lib}: applications of D-modules) |
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| 69 | @item |
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| 70 | new library: bfct.lib global (@nref{bfct_lib}: Bernstein-Sato polynomial) |
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| 71 | @item |
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| 72 | new library: discretize.lib @nref{discretize_lib}: tools for the generation of finite difference schemes) |
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| 73 | @item |
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[e40f77] | 74 | new library: nchomolog.lib @nref{nchomolog_lib}: Noncommutative Homological Algebra |
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| 75 | @item |
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| 76 | new library: freegb.lib @nref{freegb_lib}: Twosided Noncommutative Groebner bases in Free Algebras |
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[719d85] | 77 | @item |
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[f302c9] | 78 | contributed library: cimonom.lib @nref{cimonom_lib} |
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| 79 | @item |
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[719d85] | 80 | contributed library: phindex.lib @nref{phindex_lib} |
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[ceb4be] | 81 | @item |
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| 82 | homolog.lib: kernel renamed to @nref{hom_kernel}. |
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| 83 | @*(See also @nref{kernel}, @nref{alg_kernel}). |
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[567eca] | 84 | @end itemize |
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| 85 | |
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| 86 | @heading News for version 3-0-4 |
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| 87 | |
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[b8169a] | 88 | @itemize @bullet |
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| 89 | @item |
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| 90 | licence changed: due to the need to use stuff under (L)GPL3, |
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| 91 | all parts of @sc{Singular} are licenced under GPL (resp. LGPL) version 2, or (at your option) version 3 |
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| 92 | @item |
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| 93 | new command: (@nref{univariate}): test polynomials for being univariate. |
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| 94 | @item |
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[09f377] | 95 | new command: (@nref{variables}): list of all variables occurring in a polynomial, ideal or matrix. |
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[b8169a] | 96 | @item |
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[b1d37f] | 97 | syntax change: @nref{ncalgebra} should be substituted by @nref{nc_algebra}. |
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| 98 | @code{ncalgebra} is now depreciated, but still supported |
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[b8169a] | 99 | @item |
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[b1d37f] | 100 | library @nref{nctools_lib} updated to use @code{nc_algebra},@* |
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[b8169a] | 101 | @nref{Weyl}, @nref{Exterior}, @nref{findimAlgebra} do not change the current ring |
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| 102 | but return the new structure |
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| 103 | @item |
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| 104 | kernel: use Conway polynomials and support more finite fields |
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| 105 | @end itemize |
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| 106 | |
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| 107 | @heading News in version 3-0-3 |
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| 108 | |
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[09f377] | 109 | The version 3-0-3 is stabilizing release, |
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[e633d6] | 110 | a result of a long beta test and the integration of a lot of small |
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| 111 | fixes which were on our waiting list for integration. |
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| 112 | |
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[fdcccc] | 113 | It contains also a lot of new features: |
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[7d45e3] | 114 | @itemize @bullet |
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| 115 | @item |
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[9b3858] | 116 | licence changed: omalloc and MP are now (also) available under GPL; |
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| 117 | that means that all parts of @sc{Singular} are licenced under GPL (resp. LGPL). |
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| 118 | @item |
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| 119 | factory, libfac, Singular updated for gcc 4.1.x |
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| 120 | @item |
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[fdcccc] | 121 | kernel updated for the optional use of boost. |
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| 122 | @item |
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| 123 | can now be built as a library. |
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[9b3858] | 124 | @item |
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[b85b62] | 125 | new operator @code{a:b} gives an @code{intvec} of length @code{b} with constant entries @code{a} |
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[9eacc1] | 126 | @item |
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[aabd021] | 127 | new command: (@nref{chinrem}): lifting via chinese remainder theorem |
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[f97b4e] | 128 | @item |
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[aabd021] | 129 | new command: (@nref{interpolation}): ideal of points with given multiplicities |
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[9b3858] | 130 | @item |
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[a871517] | 131 | non-commutative kernel subsystem was rewritten in order to support specific algebras more efficiently. |
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[910760] | 132 | Implemented algebras at the moment: super-commutative algebras (in particular exterior algebras). |
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[b63ed6] | 133 | @item |
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[fd096c] | 134 | @nref{std} et al.: new selection strategy for reductions (@nref{option} (length)). |
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[46eacb] | 135 | @item |
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[ea667ce] | 136 | @nref{reduce}: new strategy for selection and normalization. |
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[fdcccc] | 137 | @item |
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[46eacb] | 138 | @nref{simplify} slightly changed: does not omit zero polynomial unless |
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| 139 | specified. |
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[a871517] | 140 | @item |
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[aabd021] | 141 | new library: compregb.lib (@nref{compregb_lib}): comprehensive Groebner base system |
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| 142 | @item |
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[a871517] | 143 | new library: kskernel.lib (@nref{kskernel_lib}): kernel of the kodaira-spencer map for irreducible plane curve singularities |
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[46eacb] | 144 | @item |
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[ba8a71] | 145 | new library: modstd.lib (@nref{modstd_lib}): Groebner base computations |
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[531d9e] | 146 | over the rational numbers via modular computations |
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[0dec46] | 147 | @item |
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| 148 | new library: noether.lib (@nref{noether_lib}): Noether normalization of an ideal(not nessecary homogeneous) |
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| 149 | @item |
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[ba8a71] | 150 | new library: atkins.lib (@nref{atkins_lib}): the elliptic curve primality test of Atkin |
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[0dec46] | 151 | @item |
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[4b1c39] | 152 | new library: aksaka.lib (@nref{aksaka_lib}): primality testing after Agrawal, Saxena, Kayal |
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[ba8a71] | 153 | @item |
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| 154 | new library: arcpoint.lib (@nref{arcpoint_lib}): truncations of arcs at a singular point |
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[b63ed6] | 155 | @item |
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[46eacb] | 156 | new library: resgraph.lib (@nref{resgraph_lib}): visualization of resolution data. |
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| 157 | @item |
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[9959120] | 158 | new library: realrad.lib (@nref{realrad_lib}): computation of the real radical |
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| 159 | over the rational numbers and extensions thereof |
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| 160 | @item |
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[a871517] | 161 | new library: hyperel.lib (@nref{hyperel_lib}): divisors in the jacobian of hyperelliptic curves |
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| 162 | @item |
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| 163 | new library: curvepar.lib (@nref{curvepar_lib}): space curves |
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[653a691] | 164 | @item |
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[be4db4] | 165 | new library: sagbi.lib (@nref{sagbi_lib}): subalgebras bases analogous to Groebner bases for ideals |
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| 166 | @item |
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| 167 | new library: surfex.lib (@nref{surfex_lib}): visualizing and rotating surfaces |
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[e633d6] | 168 | @item |
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[b8ba2a] | 169 | new library: cimonom.lib (@nref{cimonom_lib}): determines if the toric ideal of an affine monomial curve is a complete intersection. |
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[fdcccc] | 170 | @item |
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[a871517] | 171 | @nref{sheafcoh_lib}: new experimental functions, in particular @nref{sheafCohBGG2} |
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[b63ed6] | 172 | @item |
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[4190e6] | 173 | library @code{ncall.lib} merged into @nref{all_lib} |
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| 174 | @item |
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[9fb9293] | 175 | library center.lib (@code{center_lib}) renamed to @code{central.lib} (@nref{central_lib}) |
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[4190e6] | 176 | @item |
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[a871517] | 177 | @nref{nctools_lib}: new functions for super-commutative algebras (i.e. @nref{SuperCommutative}, @nref{IsSCA}, @nref{AltVarStart}, @nref{AltVarEnd}) |
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[9b3858] | 178 | @item |
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[a871517] | 179 | resolve.lib: blow ups revised (@nref{resolve_lib}) |
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[9b3858] | 180 | @item |
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| 181 | new algorithms in primdec.lib (@nref{primdec_lib}): radical et al. |
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| 182 | @item |
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| 183 | improved version of @nref{slimgb}, incorporated into @nref{groebner}, |
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[a871517] | 184 | strategy change in groebner |
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[531d9e] | 185 | @item |
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[e58e4b] | 186 | finvar.lib: the algorithm of @nref{secondary_char0} is now used in general in the |
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[a871517] | 187 | non-modular case (@nref{finvar_lib}) |
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[255c18] | 188 | @item |
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[a871517] | 189 | finvar.lib: new algorithm for @nref{irred_secondary_char0} (@nref{finvar_lib}) |
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[e58e4b] | 190 | @item |
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[a871517] | 191 | finvar.lib: new function @nref{irred_secondary_no_molien} (@nref{finvar_lib}) |
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[255c18] | 192 | @item |
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[3d1bbb] | 193 | finvar.lib: new functions for computing minimal generating sets of |
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[a871517] | 194 | invariant rings of finite groups in the non-modular case: @nref{invariant_algebra_reynolds} for finite |
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| 195 | matrix groups and @nref{invariant_algebra_perm} for permutation groups (@nref{finvar_lib}) |
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[3d1bbb] | 196 | @item |
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[a871517] | 197 | operation for sparse matrices improved: multiplication, prune, conversion to module |
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[c7c21e3] | 198 | @c @item |
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| 199 | @c experimental: @code{python} / @code{ipython} interface |
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[9b3858] | 200 | @end itemize |
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| 201 | |
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| 202 | @heading News in version 3-0-2 |
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| 203 | |
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| 204 | The version 3-0-2 is mainly a bug fix release, |
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| 205 | but it contains also some new features: |
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| 206 | @itemize @bullet |
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| 207 | @item |
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[c725ac] | 208 | factory, libfac updated for gcc 4.1.x |
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| 209 | @item |
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| 210 | configure/speed improved for 64bit architectures |
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| 211 | @item |
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[e825a3] | 212 | new library: dmod.lib (@nref{dmod_lib}) |
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[c725ac] | 213 | @item |
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[e825a3] | 214 | new library: perron.lib (@nref{perron_lib}) |
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[4a38bd] | 215 | @item |
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[e714d8a] | 216 | improved center.lib: revised implementation, new functions (sa_reduce etc.) |
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[4a38bd] | 217 | @item |
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[e825a3] | 218 | revised ncalg.lib (@nref{ncalg_lib}): new algebras, U(sl_n) and U(g_2) changed to conform GAP. |
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[4a38bd] | 219 | @item |
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[e825a3] | 220 | new algorithms in primdec.lib (@nref{primdec_lib}): radical et al. |
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[c725ac] | 221 | @item |
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| 222 | improved version of @nref{slimgb}, incorporated into @nref{groebner} |
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| 223 | @item |
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[e58e4b] | 224 | finvar.lib: new algorithm for @nref{secondary_char0}, which is a drastic improvement |
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[255c18] | 225 | (@nref{finvar_lib}). |
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| 226 | @item |
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[e58e4b] | 227 | finvar.lib: new function @nref{irred_secondary_char0} (@nref{finvar_lib}). |
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| 228 | @item |
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[a871517] | 229 | finvar.lib: new function @nref{rel_orbit_variety}, complementing @nref{relative_orbit_variety} |
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[e58e4b] | 230 | (@nref{finvar_lib}). |
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[255c18] | 231 | @item |
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[e825a3] | 232 | improved module generator (@code{modgen}) |
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| 233 | @item |
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[c725ac] | 234 | experimental: new type @nref{bigint} |
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[aff0bb7] | 235 | @c @item |
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| 236 | @c experimental: @code{python} / @code{ipython} interface |
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[c725ac] | 237 | @item |
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[aff0bb7] | 238 | more architectures: Solaris on x86/opteron, ... |
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[f6f1db] | 239 | @item |
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| 240 | build process improved: builds automatically without patches on 64bit architectures |
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[c725ac] | 241 | @end itemize |
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| 242 | |
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| 243 | @heading NEWS in version 3-0-1 |
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| 244 | The version 3-0-1 is mainly a bug fix release, |
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| 245 | but it contains also some new features: |
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| 246 | @itemize @bullet |
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| 247 | @item |
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[7d45e3] | 248 | NTL upgraded to version 5.4 |
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| 249 | @item |
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| 250 | new library: absfact.lib @nref{absfact_lib} |
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| 251 | @item |
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| 252 | new procedures in primdec.lib: @nref{absPrimdecGTZ} |
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| 253 | @item |
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| 254 | new procedures in standard.lib: @nref{weightKB} |
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| 255 | @item |
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| 256 | build process improved: new make target @code{install_all} |
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| 257 | @item |
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| 258 | improved version of @nref{slimgb}, incorporated into @nref{groebner} |
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| 259 | @item |
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| 260 | arithmetic in Z/pZ for architecture x84_64 improved (by 25 %) |
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| 261 | @end itemize |
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| 262 | |
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| 263 | @heading NEWS in version 3-0-0 |
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| 264 | |
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[695850] | 265 | The version 3-0-0 is the first in the new |
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[a871517] | 266 | release series version 3-0. |
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[5c14fb] | 267 | |
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[a02163] | 268 | Singular version 3 has a greater functionality and an improved architecture. |
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| 269 | Major new features are: |
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| 270 | @itemize |
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| 271 | @item |
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[745dd8] | 272 | @nref{Dynamic modules} |
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[a02163] | 273 | @item |
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[f45d18] | 274 | non-commutative extension @nref{Non-commutative subsystem PLURAL} |
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[a02163] | 275 | @item |
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[745dd8] | 276 | name spaces (@nref{package}) |
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[a02163] | 277 | @item |
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[745dd8] | 278 | easy manipulation of rings (@nref{ringlist}) |
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[a02163] | 279 | @item |
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[745dd8] | 280 | improved speed of maps (@nref{subst}, @nref{map}) |
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[a02163] | 281 | @item |
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[954abc] | 282 | a new algorithm for Groebner base computations: @nref{slimgb}. |
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[012bbb] | 283 | @item |
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[a02163] | 284 | improved factorization (integration of NTL, factorization over algebraic extensions, |
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| 285 | zeroset.lib) |
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| 286 | @item |
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| 287 | improved gcd of polynomials (including bug fixes) |
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| 288 | @item |
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| 289 | ports to more architectures including automatic building from source (fink on Mac, ebuild on Gentoo) |
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| 290 | @item |
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[4a499b] | 291 | more help browsers supported, user extendable (help.cnf) |
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| 292 | @item |
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| 293 | better support of graded modules |
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[a02163] | 294 | @item |
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| 295 | many bugs fixed |
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| 296 | @end itemize |
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| 297 | Besides theses internal changes, Singular version 3 offers many new |
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| 298 | features and functionalities (which were partly already incorporated in |
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[4a499b] | 299 | the 2-1 pre-release series). |
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[2983b3] | 300 | |
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[98b5a7] | 301 | @heading Factorizing algorithms revisited |
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| 302 | Starting with version 2-0-4, we use NTL (of Victor Shoup) for factoring |
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[4a499b] | 303 | univariate polynomials. The multivariate factorization code in libfac/factory |
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| 304 | now also works over algebraic extension fields. |
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[2983b3] | 305 | |
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[53c00b] | 306 | @heading New @sc{Singular} libraries |
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| 307 | |
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| 308 | @table @asis |
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[a871517] | 309 | @item @nref{control_lib} |
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[3175d1] | 310 | algebraic analysis tools for System and Control Theory |
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[a871517] | 311 | @item @nref{mregular_lib} |
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[3175d1] | 312 | procedures for computing the Castelnuovo-Mumford regularity |
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[a871517] | 313 | @item @nref{mprimdec_lib} |
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[a02163] | 314 | procedures for primary decomposition of modules |
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[a871517] | 315 | @item @nref{gmspoly_lib}, @nref{gmssing_lib} |
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[af847a] | 316 | procedures for the Gauss-Manin connection of a singularity |
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[c1bedf] | 317 | @item @nref{resolve_lib}, @nref{reszeta_lib} |
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[4a499b] | 318 | resolution of singularities and applications |
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[1c981c] | 319 | @item @nref{rootsmr_lib} |
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[7acf9b] | 320 | counting the number of real roots |
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[10937b] | 321 | @item @nref{sheafcoh_lib} |
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| 322 | computing cohomology of sheaves and Tate resolution |
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[7acf9b] | 323 | @item @nref{signcond_lib} |
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| 324 | computing realizable sign conditions |
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[67f7108] | 325 | @item @nref{rootsur_lib} |
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[7acf9b] | 326 | counting number of real roots of univariate polynomial |
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[8c78f0] | 327 | @item @nref{grwalk_lib} |
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[7acf9b] | 328 | Groebner and Pertubation walk |
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[53c00b] | 329 | @end table |
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| 330 | |
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[5c14fb] | 331 | @heading Changes in @sc{Singular} libraries |
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| 332 | Many procedures were moved into different libraries, |
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[a02163] | 333 | the documentation of libraries was generally improved. |
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[7031a2] | 334 | |
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| 335 | All procedures which used to change the current ring return now |
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| 336 | the newly created ring. |
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[5c14fb] | 337 | @table @asis |
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| 338 | @end table |
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| 339 | |
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[53c00b] | 340 | @heading New @sc{Singular} functions |
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| 341 | |
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| 342 | @table @asis |
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[7031a2] | 343 | @item @nref{ringlist} |
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| 344 | manipulation of rings |
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| 345 | @item @nref{slimgb} |
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[954abc] | 346 | a new algorithm to compute Groebner bases |
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[7031a2] | 347 | @item @nref{exportto} |
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[4a499b] | 348 | transfer an identifier to the specified package |
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[7031a2] | 349 | @item @nref{importfrom} |
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[4a499b] | 350 | generate a copy of an identifier from the specified package in the current package |
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[7031a2] | 351 | @item @nref{frwalk} |
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| 352 | fractal walk to change monomial orderings |
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[53c00b] | 353 | @end table |
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| 354 | |
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| 355 | @heading @sc{Singular} functions whose syntax/semantics has changed |
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| 356 | @table @asis |
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[a02163] | 357 | @item @nref{degree} |
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| 358 | outputs degree and dimension instead of returning an int |
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| 359 | @item @nref{attrib} |
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| 360 | new attribute: @code{rowShift} |
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[8d38069] | 361 | @end table |
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| 362 | |
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[3175d1] | 363 | @heading Noncommutative Extension @sc{Plural} |
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| 364 | |
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| 365 | Starting with version 3-0-0, @sc{Singular} features a |
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[a871517] | 366 | noncommutative extension @sc{Plural}. It allows to |
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[3175d1] | 367 | set and to compute within noncommutative algebras |
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| 368 | with PBW basis. Among available algorithms are Groebner |
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| 369 | bases for left modules, syzygies and resolutions. |
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| 370 | |
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| 371 | Together with @sc{Plural} come the following libraries: |
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| 372 | |
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| 373 | @table @asis |
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[e714d8a] | 374 | @item @code{center.lib} |
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[3175d1] | 375 | computes generators of the center and centralizer subalgebras up |
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| 376 | to a given degree resp. up to a given number of generators |
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[c1bedf] | 377 | @item @nref{involut_lib} |
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[3175d1] | 378 | determines linear antiautomorphisms (involutions) and automorphisms |
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| 379 | @item @nref{gkdim_lib} |
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| 380 | computes a Gel'fand-Kirillov dimension for modules |
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| 381 | @item @nref{ncalg_lib} |
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| 382 | includes ready-to-use funtions for defining many important |
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| 383 | noncommutative algebras |
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| 384 | @item @nref{ncdecomp_lib} |
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| 385 | computes a decomposition of module by its central characters |
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| 386 | @item @nref{ncalg_lib}, @nref{nctools_lib} |
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| 387 | contain numerous useful tools for noncommutative algebras |
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| 388 | @item @nref{qmatrix_lib} |
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| 389 | procedures, related to quantum matrices and minors |
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| 390 | @end table |
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| 391 | |
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[2983b3] | 392 | @heading Internal Changes |
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| 393 | @table @asis |
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[a02163] | 394 | @item new mapping code |
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[3175d1] | 395 | @c @item non-commutative extension (Plural) |
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[4a499b] | 396 | @item factory revised |
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[7acf9b] | 397 | (gcd, factorizing polynomial over algebraic extension fields,...) |
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[2983b3] | 398 | @end table |
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| 399 | |
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[98a386] | 400 | @heading Porting |
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[2983b3] | 401 | |
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[a70441f] | 402 | @itemize @bullet |
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[a871517] | 403 | @item Singular is available for ix86-Linux, |
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[7acf9b] | 404 | SunOS-5, IRIX-6, ix86-Win (runs on Windows 95/98/NT4/2000/XP), |
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[b8169a] | 405 | FreeBSD, MacOS X, x86_64-Linux (AMD64/Opteron/EM64T), |
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[a02163] | 406 | IA64-Linux |
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[8d38069] | 407 | @end itemize |
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[836dc0e] | 408 | |
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