[b055de9] | 1 | #ifndef TGBGAUSS_HEADER |
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| 2 | #define TGBGAUSS_HEADER |
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[6b9532] | 3 | /**************************************** |
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| 4 | * Computer Algebra System SINGULAR * |
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| 5 | ****************************************/ |
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[9cbb7a3] | 6 | /* $Id: tgbgauss.h,v 1.5 2005-05-17 15:26:27 bricken Exp $ */ |
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[6b9532] | 7 | /* |
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| 8 | * ABSTRACT: gauss implementation for F4 header |
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| 9 | */ |
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[b055de9] | 10 | #include "mod2.h" |
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| 11 | #include "numbers.h" |
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[eb716b0] | 12 | //#include "tgb_internal.h" |
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| 13 | |
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[9cbb7a3] | 14 | struct slimgb_alg; |
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[81306a] | 15 | |
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[b055de9] | 16 | class tgb_matrix{ |
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| 17 | private: |
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| 18 | number** n; |
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| 19 | int columns; |
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| 20 | int rows; |
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| 21 | BOOLEAN free_numbers; |
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| 22 | public: |
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| 23 | tgb_matrix(int i, int j); |
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| 24 | ~tgb_matrix(); |
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| 25 | int get_rows(); |
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| 26 | int get_columns(); |
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| 27 | void print(); |
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| 28 | void perm_rows(int i, int j); |
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| 29 | void set(int i, int j, number n); |
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| 30 | number get(int i, int j); |
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| 31 | BOOLEAN is_zero_entry(int i, int j); |
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| 32 | void free_row(int row, BOOLEAN free_non_zeros=TRUE); |
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| 33 | int min_col_not_zero_in_row(int row); |
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| 34 | int next_col_not_zero(int row,int pre); |
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| 35 | BOOLEAN zero_row(int row); |
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| 36 | void mult_row(int row,number factor); |
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| 37 | void add_lambda_times_row(int add_to,int summand,number factor); |
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| 38 | int non_zero_entries(int row); |
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| 39 | }; |
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[81306a] | 40 | |
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| 41 | class mac_poly_r{ |
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| 42 | public: |
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| 43 | number coef; |
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| 44 | mac_poly_r* next; |
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| 45 | int exp; |
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| 46 | mac_poly_r():next(NULL){} |
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| 47 | }; |
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| 48 | //mac_polys exp are smaller iff they are greater by monomial ordering |
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| 49 | //corresponding to solving linear equations notation |
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| 50 | |
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| 51 | typedef mac_poly_r* mac_poly; |
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| 52 | |
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[b055de9] | 53 | class tgb_sparse_matrix{ |
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| 54 | private: |
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| 55 | ring r; |
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| 56 | mac_poly* mp; |
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| 57 | int columns; |
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| 58 | int rows; |
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| 59 | BOOLEAN free_numbers; |
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| 60 | public: |
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| 61 | void sort_rows(); |
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| 62 | friend poly free_row_to_poly(tgb_sparse_matrix* mat, int row, poly* monoms, int monom_index); |
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| 63 | friend void init_with_mac_poly(tgb_sparse_matrix* mat, int row, mac_poly m); |
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| 64 | tgb_sparse_matrix(int i, int j, ring rarg); |
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| 65 | ~tgb_sparse_matrix(); |
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| 66 | int get_rows(); |
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| 67 | int get_columns(); |
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| 68 | void print(); |
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| 69 | void row_normalize(int row); |
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| 70 | void row_content(int row); |
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| 71 | // void perm_rows(int i, int j); |
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| 72 | void perm_rows(int i, int j){ |
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| 73 | mac_poly h; |
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| 74 | h=mp[i]; |
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| 75 | mp[i]=mp[j]; |
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| 76 | mp[j]=h; |
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| 77 | } |
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| 78 | void set(int i, int j, number n); |
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| 79 | number get(int i, int j); |
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| 80 | BOOLEAN is_zero_entry(int i, int j); |
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| 81 | void free_row(int row, BOOLEAN free_non_zeros=TRUE); |
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| 82 | int min_col_not_zero_in_row(int row); |
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| 83 | int next_col_not_zero(int row,int pre); |
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| 84 | BOOLEAN zero_row(int row); |
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| 85 | void mult_row(int row,number factor); |
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| 86 | void add_lambda_times_row(int add_to,int summand,number factor); |
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| 87 | int non_zero_entries(int row); |
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| 88 | }; |
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[9cbb7a3] | 89 | void simple_gauss(tgb_sparse_matrix* mat, slimgb_alg* c); |
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[b055de9] | 90 | void simple_gauss2(tgb_matrix* mat); |
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[81306a] | 91 | |
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| 92 | |
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| 93 | |
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| 94 | mac_poly mac_p_add_ff_qq(mac_poly a, number f,mac_poly b); |
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| 95 | |
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| 96 | void mac_mult_cons(mac_poly p,number c); |
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| 97 | int mac_length(mac_poly p); |
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| 98 | |
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| 99 | //contrary to delete on the mac_poly_r, the coefficients are also destroyed here |
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| 100 | void mac_destroy(mac_poly p); |
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| 101 | |
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[b055de9] | 102 | #endif |
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