fieker-DuValspielwiese
Last change
on this file since f2f460 was
35aab3,
checked in by Hans Schönemann <hannes@…>, 21 years ago
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This commit was generated by cvs2svn to compensate for changes in r6879,
which included commits to RCS files with non-trunk default branches.
git-svn-id: file:///usr/local/Singular/svn/trunk@6880 2c84dea3-7e68-4137-9b89-c4e89433aadc
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File size:
1.1 KB
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[35aab3] | 1 | // emacs edit mode for this file is -*- C++ -*- |
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| 2 | // $Id: fglmgauss.h,v 1.1.1.1 2003-10-06 12:15:52 Singular Exp $ |
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| 3 | |
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| 4 | /**************************************** |
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| 5 | * Computer Algebra System SINGULAR * |
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| 6 | ****************************************/ |
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| 7 | /* |
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| 8 | * ABSTRACT - header file for the gauss - reducer |
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| 9 | * (used by fglm) |
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| 10 | */ |
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| 11 | #ifndef FGLMGAUSS_H |
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| 12 | #define FGLMGAUSS_H |
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| 13 | |
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| 14 | #include "structs.h" |
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| 15 | #include "fglmvec.h" |
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| 16 | |
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| 17 | class gaussElem; |
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| 18 | |
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| 19 | class gaussReducer |
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| 20 | { |
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| 21 | private: |
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| 22 | gaussElem * elems; |
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| 23 | BOOLEAN * isPivot; |
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| 24 | int * perm; |
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| 25 | fglmVector v; |
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| 26 | fglmVector p; |
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| 27 | number pdenom; |
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| 28 | int size; |
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| 29 | int max; |
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| 30 | public: |
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| 31 | gaussReducer( int dimen ); |
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| 32 | ~gaussReducer(); |
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| 33 | |
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| 34 | // reduce returns TRUE, if v reduces to 0, FALSE otherwise; |
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| 35 | BOOLEAN reduce( fglmVector v ); |
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| 36 | |
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| 37 | // if a vector does not reduce to zero, then it can be stored as a new gauss |
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| 38 | // vector. |
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| 39 | // Has to be called after reduce! |
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| 40 | void store(); |
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| 41 | |
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| 42 | // if a vector reduces to zero, then one can get the corresponding fglmVector |
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| 43 | // of the linear dependence |
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| 44 | // Has to be called after reduce! |
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| 45 | fglmVector getDependence(); |
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| 46 | }; |
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| 47 | |
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| 48 | #endif |
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