[5a66d0] | 1 | #include <string.h> |
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[762407] | 2 | #include "config.h" |
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[b1dfaf] | 3 | #include <kernel/mod2.h> |
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[599326] | 4 | #include <kernel/febase.h> |
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[737a68] | 5 | #include <kernel/polys.h> |
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[599326] | 6 | #include <kernel/kstd1.h> |
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| 7 | #include <Singular/subexpr.h> |
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| 8 | #include <kernel/ideals.h> |
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[0fb34ba] | 9 | #include <polys/monomials/ring.h> |
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[599326] | 10 | #include <Singular/janet.h> |
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[5a66d0] | 11 | |
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| 12 | //extern int (*ListGreatMove)(jList *,jList *,poly); |
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| 13 | extern int ComputeBasis(jList *,jList *); |
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| 14 | extern void Initialization(char *); |
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| 15 | |
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| 16 | BOOLEAN jInitBasis(ideal v, jList **TT,jList **QQ) |
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| 17 | { |
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[753f9d2] | 18 | if (rHasLocalOrMixedOrdering_currRing()) |
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[5a66d0] | 19 | { |
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| 20 | WerrorS("janet only for well-orderings"); |
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| 21 | return TRUE; |
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| 22 | } |
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| 23 | |
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| 24 | Initialization(rOrdStr(currRing)); |
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| 25 | |
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| 26 | jList *Q=(jList *)GCM(sizeof(jList)); |
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| 27 | Q->root=NULL; |
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| 28 | |
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| 29 | jList *T=(jList *)GCM(sizeof(jList)); |
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| 30 | T->root=NULL; |
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| 31 | |
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[52cc7a4] | 32 | for (int i=0; i < IDELEMS(v); i++) |
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[5a66d0] | 33 | { |
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| 34 | if (v->m[i]!=NULL) |
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| 35 | { |
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| 36 | Poly *beg=NewPoly(pCopy(v->m[i])); |
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| 37 | |
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| 38 | InitHistory(beg); |
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| 39 | InitProl(beg); |
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| 40 | InitLead(beg); |
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| 41 | |
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| 42 | InsertInCount(Q,beg); |
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| 43 | } |
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| 44 | } |
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| 45 | |
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| 46 | BOOLEAN r= !(ComputeBasis(T,Q)); |
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| 47 | *TT=T; |
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| 48 | *QQ=Q; |
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| 49 | return r; |
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| 50 | } |
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| 51 | |
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| 52 | BOOLEAN jjStdJanetBasis(leftv res, leftv v, int flag) |
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| 53 | { |
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| 54 | ideal result; |
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| 55 | |
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| 56 | jList *T; |
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| 57 | jList *Q; |
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| 58 | ideal I=(ideal)v->Data(); |
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| 59 | BOOLEAN is_zero=TRUE; |
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[52cc7a4] | 60 | for (int i=0; i < IDELEMS(I); i++) |
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[5a66d0] | 61 | { |
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| 62 | if ((I->m[i]!=NULL)&& (pIsConstant(I->m[i]))) |
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| 63 | { |
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| 64 | goto zero; |
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| 65 | } |
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| 66 | else |
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| 67 | is_zero=FALSE; |
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| 68 | } |
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| 69 | if (is_zero) |
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| 70 | goto zero; |
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| 71 | if (!jInitBasis(I,&T,&Q)) |
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| 72 | { |
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[20a351] | 73 | int dpO=(strstr(rOrdStr(currRing),"dp")!=NULL); |
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[5a66d0] | 74 | int ideal_length; |
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| 75 | if (flag==1) |
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| 76 | ideal_length= dpO ? GB_length() : CountList(T); |
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| 77 | else |
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| 78 | ideal_length=CountList(T); |
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| 79 | |
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| 80 | result=idInit(ideal_length,1); |
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| 81 | |
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| 82 | int ideal_index=0; |
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| 83 | |
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| 84 | LCI iT=T->root; |
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| 85 | |
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| 86 | while(iT) |
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| 87 | { |
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| 88 | pTest(iT->info->root); |
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| 89 | if ((flag==1) && dpO) |
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| 90 | { |
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[ea0601] | 91 | //if (pTotaldegree(iT->info->lead) == pTotaldegree(iT->info->history)) |
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[31f1850] | 92 | if (p_Deg(iT->info->lead,currRing) == p_Deg(iT->info->history,currRing)) |
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[5a66d0] | 93 | { |
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| 94 | result->m[ideal_length-ideal_index-1]=pCopy(iT->info->root); |
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| 95 | if (!nGreaterZero(pGetCoeff(iT->info->root))) |
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| 96 | result->m[ideal_length-ideal_index-1] |
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| 97 | =pNeg(result->m[ideal_length-ideal_index-1]); |
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| 98 | |
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| 99 | ideal_index++; |
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| 100 | } |
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| 101 | } |
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| 102 | else |
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| 103 | { |
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| 104 | result->m[ideal_length-ideal_index-1]=pCopy(iT->info->root); |
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| 105 | if (!nGreaterZero(pGetCoeff(iT->info->root))) |
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| 106 | result->m[ideal_length-ideal_index-1] |
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| 107 | =pNeg(result->m[ideal_length-ideal_index-1]); |
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| 108 | |
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| 109 | ideal_index++; |
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| 110 | } |
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| 111 | iT=iT->next; |
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| 112 | } |
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| 113 | |
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[20a351] | 114 | if ((flag==1) && (dpO==0)) |
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| 115 | { |
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| 116 | //Print ("interred\n"); |
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| 117 | result=kInterRedOld(result); |
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| 118 | idSkipZeroes(result); |
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| 119 | } |
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| 120 | res->data = (char *)result; |
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| 121 | res->rtyp = IDEAL_CMD; |
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| 122 | DestroyList(Q); |
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| 123 | DestroyList(T); |
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| 124 | return FALSE; |
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[5a66d0] | 125 | } |
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[20a351] | 126 | else |
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| 127 | return TRUE; |
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[5a66d0] | 128 | |
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| 129 | zero: |
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| 130 | result=idInit(1,1); |
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| 131 | if (!is_zero) result->m[0]=pOne(); |
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| 132 | res->data = (char *)result; |
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| 133 | res->rtyp = IDEAL_CMD; |
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| 134 | return FALSE; |
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| 135 | } |
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| 136 | |
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| 137 | BOOLEAN jjJanetBasis(leftv res, leftv v) |
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| 138 | { |
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| 139 | return jjStdJanetBasis(res,v,0); |
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| 140 | } |
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