1 | @comment -*-texinfo-*- |
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2 | @comment $Id: NEWS.texi,v 1.29 2001-02-02 17:53:45 Singular Exp $ |
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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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11 | @ifclear singularmanual |
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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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23 | The current version @value{VERSION} is the first release of the new |
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24 | release series version 2-0. |
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25 | It contains a lot of new internal improvements, rewrites, new procedures etc. |
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26 | |
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27 | Although there are no known bugs, it is to be |
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28 | expected that the current version @value{VERSION} has some bugs in the |
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29 | code sections, since major changes were done to the @sc{Singular} |
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30 | kernel. Therefore, it is important to us, that users try out this new |
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31 | version. |
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32 | |
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33 | The current version is generally much faster as version |
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34 | 1.2 - because of new, better algorithms and impproved |
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35 | polynomial operations. |
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36 | |
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37 | Thank you very much for your support! |
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38 | |
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39 | |
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40 | @heading General Changes |
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41 | @table @asis |
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42 | @item @strong{Windows distribution} |
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43 | created with Installshield, includes Cygwin, Singular, and (optionally) |
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44 | XEmacs, distributed as various self-extracting archives. |
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45 | @item @nref{Emacs user interface} |
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46 | the recommended interface for using @sc{Singular} |
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47 | @item @code{ESingular} |
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48 | new program for an out-of-the-box, pre-customized Emacs which runs |
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49 | Singular |
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50 | @item @nref{The online help system} |
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51 | choose in which browser the on-line help is displayed; |
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52 | @*wildcard expansion of help topics |
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53 | @*new layout of html manual pages |
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54 | @item @nref{Source code debugger} |
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55 | interactive debugging of procedures written in the @sc{Singular} |
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56 | language |
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57 | @item @nref{example} |
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58 | Provide on-line examples for all kernel and library commands. |
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59 | @item file/directory layout of distribution |
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60 | @code{Singular/<version>/} |
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61 | @item http://www.singular.uni-kl.de |
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62 | New WWW home-site of @sc{Singular} |
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63 | @end table |
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64 | |
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65 | @heading Extensions of the ring concept |
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66 | |
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67 | @table @asis |
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68 | @item new coefficient domains: arbitrary long real and complex numbers |
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69 | The current syntax is going to change slightly in the final version 2.0. |
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70 | @item no restriction on number of ring variables |
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71 | @item no restriction on number of parameters |
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72 | @c @item TBC: DegBound on exponent values |
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73 | @c @item TBC: parameters over real/complex |
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74 | @c @item TBC: declaration with "ring of ring". |
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75 | @end table |
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76 | |
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77 | @heading New @sc{Singular} libraries |
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78 | |
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79 | Reorganisation of libraries into "Categories". |
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80 | @table @asis |
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81 | @item @nref{intprog_lib} procedures for computing toric ideals |
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82 | @item @nref{toric_lib} procedures for Integer Programming using Groebner bases |
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83 | @item @code{spectrum.lib} procedures for computing spectra |
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84 | @item @nref{mregular_lib} procedures for computing the Castelnuovo-Mumford regularity |
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85 | @item @nref{mondromy_lib} |
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86 | procedures for computing the monodromy of a singularity |
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87 | @item @nref{spcurve_lib} |
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88 | procedures for CM codimension 2 singularities |
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89 | @item @nref{triang_lib} |
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90 | procedures for decomposing zero-dimensional ideals |
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91 | @item @nref{solve_lib} |
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92 | procedures for solving polynomial systems |
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93 | @item @nref{surf_lib} |
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94 | visualization of curves and surfaces with @code{surf} |
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95 | @item @nref{reesclos_lib} |
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96 | Rees Algebra and integral closure of an ideal |
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97 | @item @nref{brnoeth_lib} |
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98 | Brill-Noether algorithm, Weierstrass semigroups and AG codes |
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99 | @item @nref{stratify_lib} |
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100 | Algorithmic stratification by the Greuel-Pfister algorithm |
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101 | @item @nref{paramet_lib} |
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102 | parametrization of curves |
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103 | @item @nref{rinvar_lib} |
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104 | Invariant rings of reductive groups |
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105 | @item @nref{zeroset_lib} |
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106 | Procedures for roots and factorization |
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107 | @item @nref{qhmoduli_lib} |
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108 | Moduli spaces of sqh-singularities |
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109 | @end table |
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110 | |
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111 | @heading New @sc{Singular} functions |
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112 | |
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113 | @table @asis |
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114 | @item @code{convhull, simplex} |
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115 | TODO: docu, tests |
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116 | @item @nref{division} |
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117 | Extension of lift: @code{division(M,SM)} returns a list @code{[T,U,R]} |
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118 | with @code{SM*U+R=M*T} |
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119 | @item @nref{breakpoint} |
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120 | sets a debugger breakpoint |
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121 | @item @code{div} |
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122 | integer division omitting remainder |
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123 | @item @nref{ERROR} |
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124 | interrupts computation in current procedure and returns with error |
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125 | message to top-level |
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126 | @item @nref{fglmquot} |
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127 | calculate ideal quotions using FGLM-techniques |
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128 | @item @nref{leadmonom} |
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129 | returns the leading monomial of a polynomial or a vector as a polynomial |
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130 | or vector whose coefficient is one |
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131 | @item @nref{highcorner} |
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132 | returns the smallest monomial not contained in and ideal/module |
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133 | @item @nref{hres} |
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134 | calculate free resolution of homogenous ideal using Hilbert-driven |
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135 | algorithm. |
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136 | @item @nref{minor} |
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137 | with an optional third argument minors modulo a standard basis will be computed |
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138 | @item @nref{mpresmat} |
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139 | calculate module representing the multipolynomial resultant matrix |
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140 | @item @nref{uressolve} |
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141 | compute all complex roots of a zerodimensional ideal |
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142 | @item @nref{vandermonde} |
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143 | solve Vandermonde linear system |
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144 | @end table |
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145 | |
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146 | @heading @sc{Singular} functions whose syntax/semantics has changed |
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147 | @table @asis |
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148 | @item @nref{coeffs} |
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149 | Extended possible syntax to |
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150 | @code{coeffs(ideal,ideal)} and @code{coeffs(module,module)} which is |
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151 | equivalent to @code{coeffs(ideal,ideal,p)} and |
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152 | @code{coeffs(module,module,p)} where @code{p} is a polynomial (i.e., |
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153 | monomial) consisting of all ring variables. |
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154 | @item @nref{execute} |
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155 | parenthesis around argument of execute is now @strong{mandatory}. |
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156 | @item @nref{lift} |
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157 | new implementation (unified handling of isSB and not isSB case); new |
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158 | optional third argument (a matrix name), which, if given, stores the |
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159 | "matrix of units" |
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160 | @item @nref{bareiss} |
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161 | new implementation after Lie-Saunders, much faster |
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162 | @item @nref{example} |
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163 | run example for all kernel commands. |
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164 | @c @item @nref{fetch} |
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165 | @item @nref{print} |
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166 | Finer-grained control for formatted output. |
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167 | @item @code{pause} |
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168 | can be called with argument, must be called with parenthesis. |
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169 | @end table |
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170 | |
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171 | @heading Changes in @sc{Singular} libraries |
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172 | Many procedures got into different libraries, |
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173 | documentation of libraries improved, |
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174 | some libraries renamed: |
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175 | @table @asis |
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176 | @item @nref{ainvar_lib} |
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177 | renamed @code{invar.lib} to @code{ainvar.lib} |
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178 | (see also @code{rinvar.lib}, @code{finvar.lib}). |
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179 | @item @nref{deform_lib} |
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180 | renamed procedures @code{T1, T2, T12} to @code{T_1, T_2, T_12}. |
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181 | @item @nref{poly_lib} |
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182 | new procedures numerator/denominator |
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183 | @end table |
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184 | |
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185 | @heading Changes of command-line options and system resources |
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186 | @table @asis |
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187 | @item @code{--browser}, @code{--allow-net}, @code{--emacs}, @code{--sdb} |
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188 | new command-line options |
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189 | @item @nref{system} |
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190 | values of command-line options can be inspected/set at run-time with |
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191 | @code{system(<option>[,<new_value])}. |
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192 | @item @code{.singularrc} |
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193 | system administrators can put a "global" @code{.singularrc} file into |
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194 | the directories where @sc{Singular} libraries reside. |
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195 | @item @code{libreadline} |
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196 | if found, a shared version of the @code{readline} library is linked-in |
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197 | dynamically at run-time. If not found, @code{readline} is emulated. |
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198 | @end table |
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199 | |
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200 | @heading Internal Changes |
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201 | @table @asis |
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202 | @item new data structures for monomials and polynomials |
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203 | Makes polynomial arithmetic significantly faster: Especially for block - |
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204 | or weighted orderings. |
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205 | Bucket representation of polynomials in std; |
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206 | Ring change during std, res and bareiss computations |
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207 | (resulting in more speed and less sapce consumption). |
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208 | @item new memory management |
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209 | Results is less memory usage, faster memory allocation/free, less |
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210 | fragmentation, much better locality of reference. |
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211 | @end table |
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212 | |
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213 | @heading Porting |
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214 | |
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215 | @itemize @bullet |
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216 | @item |
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217 | @code{libreadline} works only with ix86-libc5, |
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218 | ix86-libc6,HPUX_9,HPUX_10 |
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219 | @item Singular is available for ix86-libc5, ix86-libc6, HPUX_9, HPUX_10, |
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220 | SunOS-4, SunOS-5, ix86-Win (runs on Windows 95/98/ME, NT 4.0) |
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221 | @end itemize |
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