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 syntax: |
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25 | @itemize |
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26 | @item @code{alias}: may be used as a prefix to a variable declaration. |
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27 | Can only be used in procedure headings. (@nref{General command syntax}). |
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28 | @end itemize |
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29 | |
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30 | New command: |
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31 | @itemize |
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32 | @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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33 | (@nref{fres},@nref{sres}). |
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34 | @end itemize |
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35 | |
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36 | |
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37 | Extended commands: |
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38 | @itemize |
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39 | @item pseudo ordering @code{L} allows setting of limits for exponents in polynomials (@nref{Pseudo ordering L},@nref{attrib} for maxExp) |
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40 | @item @code{%},@code{mod}: also for poly operands (@nref{poly operations}). |
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41 | @item @code{delete}: extended to intvec, ideal, module (@nref{delete}). |
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42 | @item syz (@nref{syz}), lift (@nref{lift}), liftstd (@nref{liftstd}), intersect(@nref{intersect}): with a specified GB algorithm |
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43 | @end itemize |
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44 | |
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45 | New libraries: |
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46 | @itemize |
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47 | @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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48 | @item goettsche.lib: Goettsche's formula for the Betti numbers of the Hilbert scheme |
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49 | of points on a surface, Macdonald's formula for the symmetric product (@nref{goettsche_lib}) |
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50 | @item ncHilb.lib: Hilbert series of non-commutative monomial algebras (@nref{ncHilb_lib}) |
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51 | @item realclassify.lib: Classification of real singularities(@nref{realclassify_lib}) |
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52 | @item rootisolation.lib: real root isolation using interval arithmetic(@nref{rootisolation_lib}) |
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53 | @item rstandard.lib: Janet bases and border bases for ideals (@nref{rstandard_lib}) |
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54 | @end itemize |
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55 | |
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56 | Changed libraries: |
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57 | @itemize |
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58 | @item chern.lib: new version (@nref{chern_lib}) |
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59 | @item gitfan.lib: new (incompatible) version (@nref{gitfan_lib}) |
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60 | @item grobcov.lib: new version (@nref{grobcov_lib}) |
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61 | @end itemize |
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62 | |
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63 | Changes in the kernel/build system: |
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64 | @itemize |
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65 | @item port to polymake 3.x.x |
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66 | @item port to NTL 10 with threads (needs also C++11: gcc6 or -std=c++11) |
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67 | @item p_Invers is only a helper for p_Series: now static |
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68 | @item p_Divide is now p_MDivide, pDivive is a new routine |
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69 | @end itemize |
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70 | |
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71 | @heading News for version 4-1-0 |
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72 | |
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73 | Syntax changes: |
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74 | @itemize |
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75 | @item new (additional) form of ring definitions: (for example @code{ring R=QQ[x,y,z];}) |
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76 | (@nref{General syntax of a ring declaration}) |
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77 | @item new (additional) form of multi-indicies: (for example @code{i(1,2,3,4,5)}) |
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78 | (@nref{Names}) |
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79 | @item changed behaviour of @code{charstr} (@nref{charstr}) |
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80 | @item new data type @code{cring} to describe the coeffient rings, to be used |
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81 | for the new definitions for (polynomial) rings (@nref{General syntax of a ring declaration}) |
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82 | @item new command @code{ring_list} to access the parts used to contruct polynomial rings (@nref{ring_list},@nref{ringlist}) |
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83 | @item extended polynomial ring construction: also from lists produced by @code{ring_list} |
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84 | @item new attribute @code{ring_cf} for @code{ring} (@nref{attrib}) |
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85 | @item printing of rings changed to match @code{cring} names (@nref{charstr}) |
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86 | @end itemize |
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87 | |
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88 | New libraries: |
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89 | @itemize |
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90 | @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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91 | @item new library: ffmodstd.lib: Groebner bases of ideals in polynomial rings over algebraic function fields(@nref{ffmodstd_lib}) |
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92 | @item new library: nfmodsyz.lib: syzygy modules of submodules of free modules |
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93 | over algebraic number fields(@nref{nfmodsyz_lib}) |
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94 | @item new library: curveInv.lib: invariants of curves (@nref{curveInv_lib}) |
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95 | @item new library: gfan.lib: interface to gfanlib (@nref{gfan_lib}) |
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96 | @item extended library: interface to polymake merged into @nref{polymake_lib} |
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97 | @item new library: tropicalNewton.lib: Newton polygon methods in tropical geometry (@nref{tropicalNewton_lib}) |
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98 | @item new library: schubert.lib: some procedures for intersction theory (@nref{schubert_lib}) |
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99 | @end itemize |
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100 | |
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101 | Changed libraries: |
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102 | @itemize |
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103 | @item classify_aeq.lib: new procedures (@nref{classify_aeq_lib}) |
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104 | @item grobcov.lib: new version (@nref{grobcov_lib}) |
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105 | @item ncfactor.lib: factorization in some noncommuative algebras (@nref{ncfactor_lib}) with new routine ncfactor (@nref{ncfactor}) |
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106 | @item primdec.lib: new option "subsystem" (@nref{primdec_lib}) |
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107 | @end itemize |
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108 | |
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109 | Changes in the kernel: |
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110 | @itemize |
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111 | @item improved mapping of polynomials/ideals/... |
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112 | @item port to gcc 6 |
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113 | @item port to gfanlib 0.6 (requires C++11, i.e. gcc >=4.3) |
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114 | @item port to NTL 10 |
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115 | @item port to polymake 3.0 |
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116 | @item port to readline 7 |
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117 | @item @nref{sba} works for global orderings, also for coefficient types Z and Z/m |
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118 | @item @nref{std} works for all orderings, also for coefficient types Z and Z/m with local/mixed orderings |
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119 | @item @nref{factorize} works for polynomial rings over ZZ |
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120 | @end itemize |
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121 | |
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122 | Experimental stuff: |
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123 | @itemize |
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124 | @item module @nref{customstd_lib}: modify @code{std} (@nref{satstd}) |
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125 | @end itemize |
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126 | |
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127 | @heading News for version 4-0-3 |
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128 | |
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129 | New libraries: |
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130 | @itemize |
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131 | @item new library: brillnoether.lib: Riemann-Roch spaces of divisors on curves (@nref{brillnoether_lib}) |
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132 | @item new library: chern.lib: Chern classes (@nref{chern_lib}) |
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133 | @item new library: ffmodstd.lib: Groebner bases of ideals in polynomial rings over algebraic function fields(@nref{ffmodstd_lib}) |
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134 | @item new library: GND.lib: General Neron Desingularization (@nref{GND_lib}) |
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135 | @item new library: graal.lib: localization at prime ideals (@nref{graal_lib}) |
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136 | @item new library: hess.lib: Riemann-Roch space of divisors (@nref{hess_lib}) |
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137 | @end itemize |
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138 | |
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139 | Changed libraries: |
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140 | @itemize |
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141 | @item renamed algemodstd_lib to @nref{nfmodstd_lib}, extended to @code{module} |
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142 | @item renamed derham_lib to @nref{deRham_lib} |
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143 | @item grobcov.lib (grobcovK): Groebner Cover for parametric ideals (@nref{grobcov_lib}) with new routine |
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144 | ConsLevels (@nref{ConsLevels}), removed AddCons AddConsP. |
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145 | @end itemize |
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146 | |
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147 | @heading News for version 4-0-2 |
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148 | New commands: |
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149 | @itemize |
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150 | @item align (@nref{align}) |
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151 | @item branchTo (@nref{procs with different argument types}) |
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152 | @item @code{->} (@nref{proc expression}) |
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153 | @end itemize |
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154 | |
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155 | Change in ring handling: |
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156 | @itemize |
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157 | @item @code{typeof(} qring @code{)} returns @code{"ring"} |
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158 | @end itemize |
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159 | |
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160 | New libraries: |
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161 | @itemize |
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162 | @item algemodstd.lib: Groebner bases of ideals in polynomial rings |
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163 | over algebraic number fields(renamed to @nref{nfmodstd_lib}) |
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164 | @item arr.lib: arrangements of hyperplanes (@nref{arr_lib}) |
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165 | @item brillnoether.lib: Riemann-Roch spaces of divisors on curve (@nref{brillnoether_lib}) |
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166 | @item hess.lib: Riemann-Roch space of divisors |
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167 | on function fields and curves (@nref{hess_lib}) |
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168 | @item gradedModules.lib: graded modules/matrices/resolutions (@nref{gradedModules_lib}) |
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169 | @end itemize |
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170 | |
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171 | Changed libraries: |
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172 | @itemize |
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173 | @item revised polymake interface (polymake.so) |
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174 | @item revised gfanlib interface (gfanlib.so) |
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175 | @item Presolve::findvars (@nref{findvars}, @nref{variables}) |
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176 | @item Ring::addvarsTo (@nref{addvarsTo}) |
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177 | @item Ring::addNvarsTo (@nref{addNvarsTo}) |
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178 | @item Ring::hasAlgExtensionCoefficient (@nref{hasAlgExtensionCoefficient}) |
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179 | @item Schreyer::s_res (@code{s_res}) |
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180 | @item grobcov.lib (grobcovK) (@nref{grobcov_lib}) with new routines |
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181 | AddCons AddConsP. |
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182 | @item normaliz.lib (for normaliz >=2.8) (@nref{normaliz_lib}) |
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183 | @item renamed groebnerFan to groebnerFanP in polymake.lib (@nref{polymake_lib}) |
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184 | @item renamed fVector to fVectorP in polymake.lib (@nref{polymake_lib},@code{polymakeInterface_lib}) |
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185 | @end itemize |
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186 | |
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187 | @heading News for version 4-0-1 |
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188 | |
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189 | Version 4-0-1 is a bug fix release. |
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190 | |
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191 | New feature: attribute @code{ring_cf} for @code{ring} (@nref{attrib}) |
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192 | |
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193 | @heading News for version 4-0-0 |
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194 | |
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195 | Version 4-0-0 is a milestone relase of Singular. |
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196 | The new release series 4 aims for an entirely modularized architecture |
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197 | simplifying connectivity with other systems and paving the way |
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198 | for parallel computations. |
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199 | As a first step in modularization, the new release features an internal |
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200 | structural separation of coefficient rings and polynomial rings. |
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201 | This allows for a flexible integration of new coefficient rings. |
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202 | |
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203 | @sc{Singular} 4-0-0's list of new functionality and significant |
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204 | improvements further extends that of the 3-1-6/7 prerelease series. |
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205 | |
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206 | New functionality |
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207 | |
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208 | @itemize |
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209 | @item de Rham cohomology of complements of algebraic varieties (@nref{deRham_lib}) |
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210 | @item Gromov-Witten numbers of elliptic curves (@nref{ellipticcovers_lib}) |
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211 | @item classification of isolated complete intersection singularities in characteristic 0 (@nref{classifyci_lib}) |
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212 | @item parametrization of orbits of unipotent actions (@nref{orbitparam_lib}) |
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213 | @item F5-like Groebner basis algorithm (@nref{sba}) |
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214 | @item element-wise application of functions to data structures (@nref{apply}) |
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215 | @item support for debugging libraries (@nref{ASSUME}) |
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216 | @end itemize |
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217 | |
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218 | Improved functionality |
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219 | |
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220 | @itemize |
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221 | @item |
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222 | Groebner cover for parametric ideals (@nref{grobcov_lib}) |
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223 | @item |
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224 | normalization of affine rings (@nref{normal_lib}) |
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225 | @item |
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226 | classification of real singularities (@nref{realclassify_lib}) |
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227 | @item |
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228 | GIT-fans (@nref{gitfan_lib}) |
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229 | @item |
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230 | algebraic/transcendental field extensions |
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231 | @item |
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232 | @nref{Non-commutative subsystem} |
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233 | @item |
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234 | an abstraction layer for parallel computations (@nref{parallel_lib}) |
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235 | @item |
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236 | run-time loading of supplementary kernel code (@nref{Dynamic modules}) |
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237 | @item |
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238 | interpreter language support for name spaces (@nref{package}) |
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239 | @end itemize |
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240 | |
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241 | Availability |
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242 | |
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243 | @sc{Singular} is available as source code and for Linux, Mac OS X, Windows, FreeBSD and |
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244 | SunOS-5. |
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245 | |
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