1 | @comment -*-texinfo-*- |
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2 | @comment this file contains the News about Singular versions |
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3 | @comment Unix |
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4 | @ifclear VERSION |
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5 | @include version.texi |
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6 | @end ifclear |
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7 | |
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8 | @majorheading NEWS in SINGULAR @value{VERSION} |
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9 | |
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10 | @ifclear singularmanual |
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11 | @macro nref{what} |
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12 | \what\ |
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13 | @end macro |
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14 | @end ifclear |
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15 | |
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16 | @ifset singularmanual |
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17 | @macro nref{what} |
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18 | @ref{\what\} |
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19 | @end macro |
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20 | @end ifset |
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21 | |
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22 | @heading News for version @value{VERSION} |
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23 | |
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24 | New commands: |
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25 | @itemize |
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26 | @item Letterplace: dim, rightStd for qrings @nref{LETTERPLACE}) |
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27 | @end itemize |
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28 | |
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29 | New libraries: |
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30 | |
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31 | @itemize |
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32 | @item tateProdCplxNegGrad.lib: sheaf cohomology on product of projective spaces (@nref{tateProdCplxNegGrad_lib}) |
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33 | @end itemize |
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34 | |
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35 | @heading News for version 4-2-0 |
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36 | |
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37 | Syntax changes: |
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38 | @itemize |
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39 | @item renamed poly.lib to polylib.lib (@nref{polylib_lib}) |
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40 | @end itemize |
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41 | |
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42 | New libraries: |
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43 | |
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44 | @itemize |
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45 | @item interval.lib: interval arithmetic (@nref{interval_lib}) |
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46 | @item maxlike.lib: algebraic statistics (@nref{maxlike_lib}) |
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47 | @item nchilbert.lib: Hilbert series for LetterPlace algebras (@nref{nchilbert_lib}) |
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48 | @item polyclass.lib: class of polynomials (@nref{polyclass_lib}) |
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49 | @item recover.lib: Hybrid numerical/symbolical algorithms (@nref{recover_lib}) |
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50 | @item redcgs.lib: Reduced Comprehensive Groebner Systems (@nref{redcgs_lib}) |
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51 | @item ringgb.lib: coefficient rings (@nref{ringgb_lib}) |
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52 | @item sets.lib: Sets (@nref{sets_lib}) |
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53 | @item stanleyreisner.lib: T1 and T2 for a general Stanley-Reiser ring (@nref{stanleyreisner_lib} |
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54 | @item systhreads.lib: multi-threaded objects (@nref{systhreads_lib}) |
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55 | @end itemize |
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56 | |
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57 | Changed libraries: |
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58 | @itemize |
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59 | @item classify_aeq.lib: new procedure @code{classSpaceCurve} (@nref{classify_aeq_lib}) |
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60 | @item grobcov.lib: new version (@nref{grobcov_lib}) |
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61 | @item modular.lib: parallel version for verification via @code{system("verifyGB",I)} |
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62 | @end itemize |
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63 | |
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64 | New commands: |
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65 | @itemize |
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66 | @item @code{system("verifyGB",I)}: test, if I is a Groebner basis (using parallel processes) |
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67 | @item Letterplace: modulo,syz,lift,liftstd, rightStd (@nref{LETTERPLACE}) |
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68 | @end itemize |
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69 | |
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70 | Changes in the kernel/build system: |
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71 | @itemize |
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72 | @item update for using FLINT 2.6.x and for FLINT 2.7.0 |
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73 | @item Singular can be build with NTL or FLINT or both |
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74 | (if non is availabel, @code{factroize} and @code{gcd} will not work.) |
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75 | @end itemize |
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76 | |
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77 | @heading News for version 4-1-3 |
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78 | New libraries: |
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79 | @itemize |
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80 | @item invar.lib: Invariant theory @nref{invar_lib} |
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81 | @item moddiq.lib: ideal quotient and saturation @nref{moddiq_lib} |
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82 | @item ncModslimgb.lib: modular Groebner bases for G-algebras @nref{ncModslimgb_lib} |
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83 | @end itemize |
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84 | |
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85 | Changed libraries: |
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86 | @itemize |
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87 | @item chern.lib: new version (@nref{chern_lib}) |
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88 | @item grobcov.lib: new version (@nref{grobcov_lib}), |
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89 | new functions @nref{ConsLevels}, @nref{Levels}, @nref{Grob1Levels}, |
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90 | @nref{DifConsLCSets} |
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91 | @end itemize |
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92 | |
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93 | Changes in the kernel/build system: |
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94 | @itemize |
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95 | @item improved gcd and multiplication via FLINT |
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96 | @item improved lift (and related) |
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97 | @item port to polymake 3.5.x |
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98 | @item rational functions via flint (@nref{flintQ}) |
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99 | @item free algebra over Z (@nref{LETTERPLACE}) |
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100 | @item adaptions/functions for @code{Singular.jl}(@uref{https://github.com/oscar-system/Singular.jl}) |
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101 | @end itemize |
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102 | |
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103 | @heading News for version 4-1-2 |
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104 | New libraries: |
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105 | @itemize |
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106 | @item arnoldclassify.lib: Arnol'd Classifier of Singularities (@nref{arnoldclassify_lib}) |
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107 | @item difform.lib: Procedures for differential forms (@nref{difform_lib}) |
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108 | @item dmodideal.lib: Algorithms for Bernstein-Sato ideals of morphisms (@nref{dmodideal_lib}) |
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109 | @item fpalgebras.lib: Generation of various algebras in the letterplace case (@nref{fpalgebras_lib}) |
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110 | @item ncrat.lib: non-commutatie rational functions |
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111 | (@nref{ncrat_lib}) |
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112 | @end itemize |
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113 | |
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114 | Changed libraries: |
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115 | @itemize |
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116 | @item freegb.lib: lpDivision, lpPrint (@nref{freegb_lib}) |
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117 | @item fpadim.lib (@nref{fpadim_lib}) |
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118 | @item schreyer.lib: deprecated |
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119 | @item goettsche.lib: new, extended version (The Nakajima-Yoshioka formula up to n-th degree,Poincare Polynomial of the punctual Quot-scheme of rank r on n planar points Betti numbers of the punctual Quot-scheme of rank r on n planar points)(@nref{goettsche_lib}) |
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120 | @item grobcov.lib: small bug fix (@nref{grobcov_lib}) |
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121 | @end itemize |
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122 | |
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123 | Changes in the kernel/build system: |
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124 | @itemize |
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125 | @item integrated xalloc into omalloc: (@code{./configure --disable-omalloc}) |
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126 | @item improved heuristic for @code{det} (@nref{det}) |
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127 | @item improved reading of long polynomials |
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128 | @item improved groebner bases over Z coefficients |
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129 | @item code for free algebras (letterplace rings) rewritten |
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130 | (using now the standrad @code{+,-,*,^,std},...) (@nref{LETTERPLACE}) |
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131 | @item new commands @code{rightstd} (@nref{rightstd (letterplace)}) |
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132 | @item extended @code{twostd} to @sc{Letterplace} (@nref{twostd (letterplace)}, @nref{twostd (plural)}) |
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133 | @item pseudo type @code{polyBucket} |
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134 | @item new type @code{smatrix}: sparse matrix (experimental) (@nref{smatrix}). |
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135 | @item extended @code{coef} to ideals (@nref{coef}). |
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136 | @item error and signal handling in @code{libSingular} (@nref{libSingular}). |
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137 | @item updated gfanlib to version 0.6.2 |
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138 | @item port to NTL 11 (needs C++11: gcc6 or -std=c++11), which does not conflict with polymake (needs C++14) |
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139 | @end itemize |
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140 | |
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141 | @heading News for version 4-1-1 |
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142 | |
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143 | New syntax: |
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144 | @itemize |
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145 | @item @code{alias}: may be used as a prefix to a variable declaration. |
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146 | Can only be used in procedure headings. (@nref{General command syntax}). |
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147 | @end itemize |
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148 | |
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149 | New command: |
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150 | @itemize |
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151 | @item @code{fres}: improved version of @code{sres}: computes a (not necessarily minimal) free resolution of the input ideal/module, using Schreyer's algorithm. |
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152 | (@nref{fres},@nref{sres}). |
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153 | @end itemize |
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154 | |
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155 | |
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156 | Extended commands: |
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157 | @itemize |
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158 | @item pseudo ordering @code{L} allows setting of limits for exponents in polynomials (@nref{Pseudo ordering L},@nref{attrib} for @code{maxExp}) |
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159 | @item @code{%},@code{mod}: also for poly operands (@nref{poly operations}). |
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160 | @item @code{delete}: extended to intvec, ideal, module (@nref{delete}). |
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161 | @item syz (@nref{syz}), lift (@nref{lift}), liftstd (@nref{liftstd}), intersect(@nref{intersect}): with a specified GB algorithm |
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162 | @end itemize |
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163 | |
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164 | New libraries: |
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165 | @itemize |
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166 | @item classify2.lib: Classification of isolated singularities of corank <=2 and modality <= wrt. right equivalence over the complex numbers according to Arnold's list. (@nref{classify2_lib}) |
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167 | @item goettsche.lib: Goettsche's formula for the Betti numbers of the Hilbert scheme |
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168 | of points on a surface, Macdonald's formula for the symmetric product (@nref{goettsche_lib}) |
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169 | @item combinat.lib, modules.lib, methods,lib, nets.lib: a more mathematical view of modules (@nref{combinat_lib}: combinatorics), |
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170 | (@nref{methods_lib}: construct procedures), |
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171 | (@nref{modules_lib}: free resolutions), |
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172 | (@nref{nets_lib}: pretty printing) |
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173 | @item ncHilb.lib: Hilbert series of non-commutative monomial algebras (@nref{ncHilb_lib}) |
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174 | @item realclassify.lib: Classification of real singularities(@nref{realclassify_lib}) |
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175 | @item rootisolation.lib: real root isolation using interval arithmetic(@nref{rootisolation_lib}) |
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176 | @item rstandard.lib: Janet bases and border bases for ideals (@nref{rstandard_lib}) |
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177 | @end itemize |
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178 | |
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179 | Changed libraries: |
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180 | @itemize |
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181 | @item chern.lib: new version (@nref{chern_lib}) |
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182 | @item gitfan.lib: new (incompatible) version (@nref{gitfan_lib}) |
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183 | @item grobcov.lib: new version (@nref{grobcov_lib}) |
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184 | @end itemize |
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185 | |
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186 | Changes in the kernel/build system: |
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187 | @itemize |
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188 | @item port to polymake 3.x.x |
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189 | @item port to NTL 10 with threads (needs also C++11: gcc6 or -std=c++11) |
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190 | @item p_Invers is only a helper for p_Series: now static |
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191 | @item p_Divide is now p_MDivide, pDivide/p_Divide is a new routine |
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192 | @end itemize |
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193 | |
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194 | @heading News for version 4-1-0 |
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195 | |
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196 | Syntax changes: |
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197 | @itemize |
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198 | @item new (additional) form of ring definitions: (for example @code{ring R=QQ[x,y,z];}) |
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199 | (@nref{General syntax of a ring declaration}) |
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200 | @item new (additional) form of multi-indicies: (for example @code{i(1,2,3,4,5)}) |
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201 | (@nref{Names}) |
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202 | @item changed behaviour of @code{charstr} (@nref{charstr}) |
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203 | @item new data type @code{cring} to describe the coeffient rings, to be used |
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204 | for the new definitions for (polynomial) rings (@nref{General syntax of a ring declaration}) |
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205 | @item new command @code{ring_list} to access the parts used to construct polynomial rings (@nref{ring_list},@nref{ringlist}) |
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206 | @item extended polynomial ring construction: also from lists produced by @code{ring_list} |
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207 | @item new attribute @code{ring_cf} for @code{ring} (@nref{attrib}) |
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208 | @item printing of rings changed to match @code{cring} names (@nref{charstr}) |
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209 | @end itemize |
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210 | |
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211 | New libraries: |
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212 | @itemize |
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213 | @item new library: classifyMapGerms.lib: standard basis of the tangent space at the orbit of an algebraic group action (@nref{classifyMapGerms_lib}) |
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214 | @item new library: ffmodstd.lib: Groebner bases of ideals in polynomial rings over algebraic function fields(@nref{ffmodstd_lib}) |
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215 | @item new library: nfmodsyz.lib: syzygy modules of submodules of free modules |
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216 | over algebraic number fields(@nref{nfmodsyz_lib}) |
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217 | @item new library: curveInv.lib: invariants of curves (@nref{curveInv_lib}) |
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218 | @item new library: gfan.lib: interface to gfanlib (@nref{gfan_lib}) |
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219 | @item extended library: interface to polymake merged into @nref{polymake_lib} |
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220 | @item new library: tropicalNewton.lib: Newton polygon methods in tropical geometry (@nref{tropicalNewton_lib}) |
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221 | @item new library: schubert.lib: some procedures for intersction theory (@nref{schubert_lib}) |
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222 | @end itemize |
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223 | |
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224 | Changed libraries: |
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225 | @itemize |
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226 | @item classify_aeq.lib: new procedures (@nref{classify_aeq_lib}) |
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227 | @item grobcov.lib: new version (@nref{grobcov_lib}) |
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228 | @item ncfactor.lib: factorization in some noncommuative algebras (@nref{ncfactor_lib}) with new routine ncfactor (@nref{ncfactor}) |
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229 | @item primdec.lib: new option "subsystem" (@nref{primdec_lib}) |
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230 | @end itemize |
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231 | |
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232 | Changes in the kernel: |
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233 | @itemize |
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234 | @item improved mapping of polynomials/ideals/... |
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235 | @item port to gcc 6 |
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236 | @item port to gfanlib 0.6 (requires C++11, i.e. gcc >=4.3) |
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237 | @item port to NTL 10 |
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238 | @item port to polymake 3.0 |
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239 | @item port to readline 7 |
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240 | @item @nref{sba} works for global orderings, also for coefficient types Z and Z/m |
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241 | @item @nref{std} works for all orderings, also for coefficient types Z and Z/m with local/mixed orderings |
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242 | @item @nref{factorize} works for polynomial rings over ZZ |
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243 | @end itemize |
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244 | |
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245 | Experimental stuff: |
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246 | @itemize |
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247 | @item module @nref{customstd_lib}: modify @code{std} (@nref{satstd}) |
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248 | @end itemize |
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249 | |
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250 | @heading News for version 4-0-3 |
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251 | |
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252 | New libraries: |
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253 | @itemize |
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254 | @item new library: brillnoether.lib: Riemann-Roch spaces of divisors on curves (@nref{brillnoether_lib}) |
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255 | @item new library: chern.lib: Chern classes (@nref{chern_lib}) |
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256 | @item new library: ffmodstd.lib: Groebner bases of ideals in polynomial rings over algebraic function fields(@nref{ffmodstd_lib}) |
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257 | @item new library: GND.lib: General Neron Desingularization (@nref{GND_lib}) |
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258 | @item new library: graal.lib: localization at prime ideals (@nref{graal_lib}) |
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259 | @item new library: hess.lib: Riemann-Roch space of divisors (@nref{hess_lib}) |
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260 | @end itemize |
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261 | |
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262 | Changed libraries: |
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263 | @itemize |
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264 | @item renamed algemodstd_lib to @nref{nfmodstd_lib}, extended to @code{module} |
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265 | @item renamed derham_lib to @nref{deRham_lib} |
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266 | @item grobcov.lib (grobcovK): Groebner Cover for parametric ideals (@nref{grobcov_lib}) with new routine |
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267 | ConsLevels (@nref{ConsLevels}), removed AddCons AddConsP. |
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268 | @end itemize |
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269 | |
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270 | @heading News for version 4-0-2 |
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271 | New commands: |
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272 | @itemize |
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273 | @item align (@nref{align}) |
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274 | @item branchTo (@nref{procs with different argument types}) |
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275 | @item @code{->} (@nref{proc expression}) |
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276 | @end itemize |
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277 | |
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278 | Change in ring handling: |
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279 | @itemize |
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280 | @item @code{typeof(} qring @code{)} returns @code{"ring"} |
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281 | @end itemize |
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282 | |
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283 | New libraries: |
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284 | @itemize |
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285 | @item algemodstd.lib: Groebner bases of ideals in polynomial rings |
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286 | over algebraic number fields(renamed to @nref{nfmodstd_lib}) |
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287 | @item arr.lib: arrangements of hyperplanes (@nref{arr_lib}) |
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288 | @item brillnoether.lib: Riemann-Roch spaces of divisors on curve (@nref{brillnoether_lib}) |
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289 | @item hess.lib: Riemann-Roch space of divisors |
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290 | on function fields and curves (@nref{hess_lib}) |
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291 | @item gradedModules.lib: graded modules/matrices/resolutions (@nref{gradedModules_lib}) |
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292 | @end itemize |
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293 | |
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294 | Changed libraries: |
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295 | @itemize |
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296 | @item revised polymake interface (polymake.so) |
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297 | @item revised gfanlib interface (gfanlib.so) |
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298 | @item Presolve::findvars (@nref{findvars}, @nref{variables}) |
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299 | @item Ring::addvarsTo (@nref{addvarsTo}) |
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300 | @item Ring::addNvarsTo (@nref{addNvarsTo}) |
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301 | @item Ring::hasAlgExtensionCoefficient (@nref{hasAlgExtensionCoefficient}) |
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302 | @item Schreyer::s_res (@code{s_res}) |
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303 | @item grobcov.lib (grobcovK) (@nref{grobcov_lib}) with new routines |
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304 | AddCons AddConsP. |
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305 | @item normaliz.lib (for normaliz >=2.8) (@nref{normaliz_lib}) |
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306 | @item renamed groebnerFan to groebnerFanP in polymake.lib (@nref{polymake_lib}) |
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307 | @item renamed fVector to fVectorP in polymake.lib (@nref{polymake_lib},@code{polymakeInterface_lib}) |
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308 | @end itemize |
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309 | |
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310 | @heading News for version 4-0-1 |
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311 | |
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312 | Version 4-0-1 is a bug fix release. |
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313 | |
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314 | New feature: attribute @code{ring_cf} for @code{ring} (@nref{attrib}) |
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315 | |
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316 | @heading News for version 4-0-0 |
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317 | |
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318 | Version 4-0-0 is a milestone release of Singular. |
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319 | The new release series 4 aims for an entirely modularized architecture |
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320 | simplifying connectivity with other systems and paving the way |
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321 | for parallel computations. |
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322 | As a first step in modularization, the new release features an internal |
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323 | structural separation of coefficient rings and polynomial rings. |
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324 | This allows for a flexible integration of new coefficient rings. |
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325 | |
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326 | @sc{Singular} 4-0-0's list of new functionality and significant |
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327 | improvements further extends that of the 3-1-6/7 prerelease series. |
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328 | |
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329 | New functionality |
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330 | |
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331 | @itemize |
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332 | @item de Rham cohomology of complements of algebraic varieties (@nref{deRham_lib}) |
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333 | @item Gromov-Witten numbers of elliptic curves (@nref{ellipticcovers_lib}) |
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334 | @item classification of isolated complete intersection singularities in characteristic 0 (@nref{classifyci_lib}) |
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335 | @item parametrization of orbits of unipotent actions (@nref{orbitparam_lib}) |
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336 | @item F5-like Groebner basis algorithm (@nref{sba}) |
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337 | @item element-wise application of functions to data structures (@nref{apply}) |
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338 | @item support for debugging libraries (@nref{ASSUME}) |
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339 | @end itemize |
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340 | |
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341 | Improved functionality |
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342 | |
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343 | @itemize |
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344 | @item |
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345 | Groebner cover for parametric ideals (@nref{grobcov_lib}) |
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346 | @item |
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347 | normalization of affine rings (@nref{normal_lib}) |
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348 | @item |
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349 | classification of real singularities (@nref{realclassify_lib}) |
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350 | @item |
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351 | GIT-fans (@nref{gitfan_lib}) |
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352 | @item |
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353 | algebraic/transcendental field extensions |
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354 | @item |
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355 | @nref{Non-commutative subsystem} |
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356 | @item |
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357 | an abstraction layer for parallel computations (@nref{parallel_lib}) |
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358 | @item |
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359 | run-time loading of supplementary kernel code (@nref{Dynamic modules}) |
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360 | @item |
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361 | interpreter language support for name spaces (@nref{package}) |
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362 | @end itemize |
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363 | |
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364 | Availability |
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365 | |
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366 | @sc{Singular} is available as source code and for Linux, Mac OS X, Windows, FreeBSD and |
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367 | SunOS-5. |
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368 | |
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