[53c00b] | 1 | @comment -*-texinfo-*- |
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[9959120] | 2 | @comment $Id: NEWS.texi,v 1.79 2007-04-11 15:26:08 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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[7d45e3] | 23 | @heading Updates for version @value{VERSION} |
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| 24 | |
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| 25 | The current version @value{VERSION} is mainly a bug fix release, |
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| 26 | but it contains also some new features: |
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| 27 | @itemize @bullet |
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| 28 | @item |
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[9b3858] | 29 | licence changed: omalloc and MP are now (also) available under GPL; |
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| 30 | that means that all parts of @sc{Singular} are licenced under GPL (resp. LGPL). |
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| 31 | @item |
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| 32 | factory, libfac, Singular updated for gcc 4.1.x |
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| 33 | @item |
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| 34 | kernel updated for the optional use of boost |
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| 35 | @item |
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[9eacc1] | 36 | new operator @code{a:b} : @code{intvec} of length @code{b} with constant entries @code{a} |
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| 37 | @item |
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[9b3858] | 38 | new command: (@nref{interpolation}: ideal of points with given multiplicities) |
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| 39 | @item |
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[b63ed6] | 40 | non-commutative kernel subsystem was rewritten for more efficient super-commutative (and exterior) algebras |
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| 41 | @item |
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[fd096c] | 42 | @nref{std} et al.: new selection strategy for reductions (@nref{option} (length)). |
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[46eacb] | 43 | @item |
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| 44 | @nref{simplify} slightly changed: does not omit zero polynomial unless |
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| 45 | specified. |
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| 46 | @item |
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[ba8a71] | 47 | new library: modstd.lib (@nref{modstd_lib}): Groebner base computations |
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[531d9e] | 48 | over the rational numbers via modular computations |
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[0dec46] | 49 | @item |
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| 50 | new library: noether.lib (@nref{noether_lib}): Noether normalization of an ideal(not nessecary homogeneous) |
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| 51 | @item |
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[ba8a71] | 52 | new library: atkins.lib (@nref{atkins_lib}): the elliptic curve primality test of Atkin |
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[0dec46] | 53 | @item |
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[4b1c39] | 54 | new library: aksaka.lib (@nref{aksaka_lib}): primality testing after Agrawal, Saxena, Kayal |
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[ba8a71] | 55 | @item |
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| 56 | new library: arcpoint.lib (@nref{arcpoint_lib}): truncations of arcs at a singular point |
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[b63ed6] | 57 | @item |
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[46eacb] | 58 | new library: resgraph.lib (@nref{resgraph_lib}): visualization of resolution data. |
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| 59 | @item |
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[9959120] | 60 | new library: realrad.lib (@nref{realrad_lib}): computation of the real radical |
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| 61 | over the rational numbers and extensions thereof |
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| 62 | @item |
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[46eacb] | 63 | sheafcoh.lib: new experimental functions (sheafCohBGG2) |
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[b63ed6] | 64 | @item |
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| 65 | nctools.lib: new functions for super-commutative algebras (SuperCommutative, IsSCA, AltVarStart, AltVarEnd) |
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[9b3858] | 66 | @item |
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[878bd9] | 67 | resolve.lib: blow ups revised (@nref{resolve_lib}). |
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[9b3858] | 68 | @item |
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| 69 | new algorithms in primdec.lib (@nref{primdec_lib}): radical et al. |
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| 70 | @item |
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| 71 | improved version of @nref{slimgb}, incorporated into @nref{groebner}, |
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| 72 | strategy change in groebner. |
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[531d9e] | 73 | @item |
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[e58e4b] | 74 | finvar.lib: the algorithm of @nref{secondary_char0} is now used in general in the |
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| 75 | non-modular case (@nref{finvar_lib}). |
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[255c18] | 76 | @item |
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[e58e4b] | 77 | finvar.lib: new algorithm for @nref{irred_secondary_char0} (@nref{finvar_lib}). |
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| 78 | @item |
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| 79 | finvar.lib: new function @nref{irred_secondary_no_molien} (@nref{finvar_lib}). |
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[255c18] | 80 | @item |
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[3d1bbb] | 81 | finvar.lib: new functions for computing minimal generating sets of |
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[01ad00] | 82 | invariant rings of finite groups in the non-modular case: @nref{invariant_algebra_reynolds} for finite |
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[3d1bbb] | 83 | matrix groups and @nref{invariant_algebra_perm} for permutation groups (@nref{finvar_lib}). |
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| 84 | @item |
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[db6e17d] | 85 | operation for sparse matrices improved: multiplication, prune, conversion to module. |
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[e58e4b] | 86 | @item |
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| 87 | experimental: @code{python} / @code{ipython} interface |
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[9b3858] | 88 | @end itemize |
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| 89 | |
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| 90 | @heading News in version 3-0-2 |
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| 91 | |
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| 92 | The version 3-0-2 is mainly a bug fix release, |
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| 93 | but it contains also some new features: |
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| 94 | @itemize @bullet |
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| 95 | @item |
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[c725ac] | 96 | factory, libfac updated for gcc 4.1.x |
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| 97 | @item |
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| 98 | configure/speed improved for 64bit architectures |
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| 99 | @item |
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[e825a3] | 100 | new library: dmod.lib (@nref{dmod_lib}) |
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[c725ac] | 101 | @item |
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[e825a3] | 102 | new library: perron.lib (@nref{perron_lib}) |
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[4a38bd] | 103 | @item |
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[e825a3] | 104 | improved center.lib (@nref{center_lib}): revised implementation, new functions (sa_reduce etc.) |
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[4a38bd] | 105 | @item |
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[e825a3] | 106 | revised ncalg.lib (@nref{ncalg_lib}): new algebras, U(sl_n) and U(g_2) changed to conform GAP. |
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[4a38bd] | 107 | @item |
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[e825a3] | 108 | new algorithms in primdec.lib (@nref{primdec_lib}): radical et al. |
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[c725ac] | 109 | @item |
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| 110 | improved version of @nref{slimgb}, incorporated into @nref{groebner} |
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| 111 | @item |
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[e58e4b] | 112 | finvar.lib: new algorithm for @nref{secondary_char0}, which is a drastic improvement |
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[255c18] | 113 | (@nref{finvar_lib}). |
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| 114 | @item |
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[e58e4b] | 115 | finvar.lib: new function @nref{irred_secondary_char0} (@nref{finvar_lib}). |
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| 116 | @item |
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| 117 | finvar.lib: new function @nref{rel_orbit_variety}, complementing @nref{relative_orbit_variety} |
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| 118 | (@nref{finvar_lib}). |
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[255c18] | 119 | @item |
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[e825a3] | 120 | improved module generator (@code{modgen}) |
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| 121 | @item |
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[c725ac] | 122 | experimental: new type @nref{bigint} |
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[aff0bb7] | 123 | @c @item |
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| 124 | @c experimental: @code{python} / @code{ipython} interface |
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[c725ac] | 125 | @item |
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[aff0bb7] | 126 | more architectures: Solaris on x86/opteron, ... |
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[f6f1db] | 127 | @item |
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| 128 | build process improved: builds automatically without patches on 64bit architectures |
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[c725ac] | 129 | @end itemize |
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| 130 | |
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| 131 | @heading NEWS in version 3-0-1 |
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| 132 | The version 3-0-1 is mainly a bug fix release, |
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| 133 | but it contains also some new features: |
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| 134 | @itemize @bullet |
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| 135 | @item |
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[7d45e3] | 136 | NTL upgraded to version 5.4 |
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| 137 | @item |
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| 138 | new library: absfact.lib @nref{absfact_lib} |
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| 139 | @item |
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| 140 | new procedures in primdec.lib: @nref{absPrimdecGTZ} |
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| 141 | @item |
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| 142 | new procedures in standard.lib: @nref{weightKB} |
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| 143 | @item |
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| 144 | build process improved: new make target @code{install_all} |
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| 145 | @item |
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| 146 | improved version of @nref{slimgb}, incorporated into @nref{groebner} |
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| 147 | @item |
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| 148 | arithmetic in Z/pZ for architecture x84_64 improved (by 25 %) |
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| 149 | @end itemize |
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| 150 | |
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| 151 | @heading NEWS in version 3-0-0 |
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| 152 | |
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[695850] | 153 | The version 3-0-0 is the first in the new |
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[a02163] | 154 | release series version 3-0. |
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[5c14fb] | 155 | |
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[a02163] | 156 | Singular version 3 has a greater functionality and an improved architecture. |
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| 157 | Major new features are: |
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| 158 | @itemize |
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| 159 | @item |
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[745dd8] | 160 | @nref{Dynamic modules} |
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[a02163] | 161 | @item |
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[f45d18] | 162 | non-commutative extension @nref{Non-commutative subsystem PLURAL} |
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[a02163] | 163 | @item |
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[745dd8] | 164 | name spaces (@nref{package}) |
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[a02163] | 165 | @item |
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[745dd8] | 166 | easy manipulation of rings (@nref{ringlist}) |
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[a02163] | 167 | @item |
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[745dd8] | 168 | improved speed of maps (@nref{subst}, @nref{map}) |
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[a02163] | 169 | @item |
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[954abc] | 170 | a new algorithm for Groebner base computations: @nref{slimgb}. |
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[012bbb] | 171 | @item |
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[a02163] | 172 | improved factorization (integration of NTL, factorization over algebraic extensions, |
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| 173 | zeroset.lib) |
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| 174 | @item |
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| 175 | improved gcd of polynomials (including bug fixes) |
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| 176 | @item |
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| 177 | ports to more architectures including automatic building from source (fink on Mac, ebuild on Gentoo) |
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| 178 | @item |
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[4a499b] | 179 | more help browsers supported, user extendable (help.cnf) |
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| 180 | @item |
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| 181 | better support of graded modules |
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[a02163] | 182 | @item |
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| 183 | many bugs fixed |
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| 184 | @end itemize |
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| 185 | Besides theses internal changes, Singular version 3 offers many new |
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| 186 | features and functionalities (which were partly already incorporated in |
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[4a499b] | 187 | the 2-1 pre-release series). |
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[2983b3] | 188 | |
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[98b5a7] | 189 | @heading Factorizing algorithms revisited |
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| 190 | Starting with version 2-0-4, we use NTL (of Victor Shoup) for factoring |
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[4a499b] | 191 | univariate polynomials. The multivariate factorization code in libfac/factory |
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| 192 | now also works over algebraic extension fields. |
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[2983b3] | 193 | |
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[53c00b] | 194 | @heading New @sc{Singular} libraries |
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| 195 | |
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| 196 | @table @asis |
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[3175d1] | 197 | @item @nref{control_lib} |
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| 198 | algebraic analysis tools for System and Control Theory |
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| 199 | @item @nref{mregular_lib} |
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| 200 | procedures for computing the Castelnuovo-Mumford regularity |
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| 201 | @item @nref{mprimdec_lib} |
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[a02163] | 202 | procedures for primary decomposition of modules |
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[3175d1] | 203 | @item @nref{gmspoly_lib}, @nref{gmssing_lib} |
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[af847a] | 204 | procedures for the Gauss-Manin connection of a singularity |
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[c1bedf] | 205 | @item @nref{resolve_lib}, @nref{reszeta_lib} |
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[4a499b] | 206 | resolution of singularities and applications |
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[1c981c] | 207 | @item @nref{rootsmr_lib} |
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[7acf9b] | 208 | counting the number of real roots |
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[10937b] | 209 | @item @nref{sheafcoh_lib} |
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| 210 | computing cohomology of sheaves and Tate resolution |
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[7acf9b] | 211 | @item @nref{signcond_lib} |
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| 212 | computing realizable sign conditions |
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[67f7108] | 213 | @item @nref{rootsur_lib} |
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[7acf9b] | 214 | counting number of real roots of univariate polynomial |
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[8c78f0] | 215 | @item @nref{grwalk_lib} |
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[7acf9b] | 216 | Groebner and Pertubation walk |
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[53c00b] | 217 | @end table |
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| 218 | |
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[5c14fb] | 219 | @heading Changes in @sc{Singular} libraries |
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| 220 | Many procedures were moved into different libraries, |
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[a02163] | 221 | the documentation of libraries was generally improved. |
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[7031a2] | 222 | |
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| 223 | All procedures which used to change the current ring return now |
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| 224 | the newly created ring. |
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[5c14fb] | 225 | @table @asis |
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| 226 | @end table |
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| 227 | |
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[53c00b] | 228 | @heading New @sc{Singular} functions |
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| 229 | |
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| 230 | @table @asis |
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[7031a2] | 231 | @item @nref{ringlist} |
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| 232 | manipulation of rings |
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| 233 | @item @nref{slimgb} |
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[954abc] | 234 | a new algorithm to compute Groebner bases |
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[7031a2] | 235 | @item @nref{exportto} |
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[4a499b] | 236 | transfer an identifier to the specified package |
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[7031a2] | 237 | @item @nref{importfrom} |
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[4a499b] | 238 | generate a copy of an identifier from the specified package in the current package |
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[7031a2] | 239 | @item @nref{frwalk} |
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| 240 | fractal walk to change monomial orderings |
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[53c00b] | 241 | @end table |
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| 242 | |
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| 243 | @heading @sc{Singular} functions whose syntax/semantics has changed |
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| 244 | @table @asis |
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[a02163] | 245 | @item @nref{degree} |
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| 246 | outputs degree and dimension instead of returning an int |
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| 247 | @item @nref{attrib} |
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| 248 | new attribute: @code{rowShift} |
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[8d38069] | 249 | @end table |
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| 250 | |
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[3175d1] | 251 | @heading Noncommutative Extension @sc{Plural} |
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| 252 | |
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| 253 | Starting with version 3-0-0, @sc{Singular} features a |
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| 254 | noncommutative extension @sc{Plural}. It allows to |
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| 255 | set and to compute within noncommutative algebras |
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| 256 | with PBW basis. Among available algorithms are Groebner |
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| 257 | bases for left modules, syzygies and resolutions. |
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| 258 | |
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| 259 | Together with @sc{Plural} come the following libraries: |
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| 260 | |
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| 261 | @table @asis |
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| 262 | @item @nref{center_lib} |
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| 263 | computes generators of the center and centralizer subalgebras up |
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| 264 | to a given degree resp. up to a given number of generators |
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[c1bedf] | 265 | @item @nref{involut_lib} |
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[3175d1] | 266 | determines linear antiautomorphisms (involutions) and automorphisms |
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| 267 | @item @nref{gkdim_lib} |
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| 268 | computes a Gel'fand-Kirillov dimension for modules |
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| 269 | @item @nref{ncalg_lib} |
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| 270 | includes ready-to-use funtions for defining many important |
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| 271 | noncommutative algebras |
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| 272 | @item @nref{ncdecomp_lib} |
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| 273 | computes a decomposition of module by its central characters |
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| 274 | @item @nref{ncalg_lib}, @nref{nctools_lib} |
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| 275 | contain numerous useful tools for noncommutative algebras |
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| 276 | @item @nref{qmatrix_lib} |
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| 277 | procedures, related to quantum matrices and minors |
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| 278 | @end table |
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| 279 | |
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[2983b3] | 280 | @heading Internal Changes |
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| 281 | @table @asis |
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[a02163] | 282 | @item new mapping code |
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[3175d1] | 283 | @c @item non-commutative extension (Plural) |
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[4a499b] | 284 | @item factory revised |
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[7acf9b] | 285 | (gcd, factorizing polynomial over algebraic extension fields,...) |
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[2983b3] | 286 | @end table |
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| 287 | |
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[98a386] | 288 | @heading Porting |
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[2983b3] | 289 | |
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[a70441f] | 290 | @itemize @bullet |
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[7acf9b] | 291 | @item Singular is available for ix86-Linux, HPUX_10, |
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| 292 | SunOS-5, IRIX-6, ix86-Win (runs on Windows 95/98/NT4/2000/XP), |
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[a02163] | 293 | FreeBSD, MacOS X, DecAlpha-Linux, x86_64-Linux (AMD64/Opteron/EM64T), |
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| 294 | IA64-Linux |
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[8d38069] | 295 | @end itemize |
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[836dc0e] | 296 | |
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