version 1.5, 2000/12/05 06:59:15 |
version 1.18, 2001/09/17 10:32:40 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/dp-supp.c,v 1.4 2000/12/05 01:24:49 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/dp-supp.c,v 1.17 2001/09/17 02:58:27 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "base.h" |
#include "base.h" |
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#include "inline.h" |
#include "parse.h" |
#include "parse.h" |
#include "ox.h" |
#include "ox.h" |
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extern int (*cmpdl)(); |
extern int (*cmpdl)(); |
extern double pz_t_e,pz_t_d,pz_t_d1,pz_t_c; |
extern double pz_t_e,pz_t_d,pz_t_d1,pz_t_c; |
extern int dp_nelim,dp_fcoeffs; |
extern int dp_nelim,dp_fcoeffs; |
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extern int NoGCD; |
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extern int GenTrace; |
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extern NODE TraceList; |
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/* |
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* content reduction |
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* |
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*/ |
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void dp_ptozp(p,rp) |
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DP p,*rp; |
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{ |
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MP m,mr,mr0; |
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int i,n; |
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Q *w; |
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Q dvr; |
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P t; |
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if ( !p ) |
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*rp = 0; |
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else { |
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for ( m =BDY(p), n = 0; m; m = NEXT(m), n++ ); |
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w = (Q *)ALLOCA(n*sizeof(Q)); |
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for ( m =BDY(p), i = 0; i < n; m = NEXT(m), i++ ) |
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if ( NUM(m->c) ) |
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w[i] = (Q)m->c; |
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else |
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ptozp(m->c,1,&w[i],&t); |
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sortbynm(w,n); |
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qltozl(w,n,&dvr); |
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for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
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NEXTMP(mr0,mr); divsp(CO,m->c,(P)dvr,&mr->c); mr->dl = m->dl; |
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} |
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NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
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} |
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} |
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void dp_ptozp2(p0,p1,hp,rp) |
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DP p0,p1; |
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DP *hp,*rp; |
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{ |
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DP t,s,h,r; |
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MP m,mr,mr0,m0; |
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addd(CO,p0,p1,&t); dp_ptozp(t,&s); |
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if ( !p0 ) { |
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h = 0; r = s; |
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} else if ( !p1 ) { |
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h = s; r = 0; |
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} else { |
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for ( mr0 = 0, m = BDY(s), m0 = BDY(p0); m0; |
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m = NEXT(m), m0 = NEXT(m0) ) { |
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NEXTMP(mr0,mr); mr->c = m->c; mr->dl = m->dl; |
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} |
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NEXT(mr) = 0; MKDP(p0->nv,mr0,h); MKDP(p0->nv,m,r); |
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} |
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if ( h ) |
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h->sugar = p0->sugar; |
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if ( r ) |
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r->sugar = p1->sugar; |
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*hp = h; *rp = r; |
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} |
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void dp_idiv(p,c,rp) |
void dp_idiv(p,c,rp) |
DP p; |
DP p; |
Q c; |
Q c; |
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} |
} |
} |
} |
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void dp_cont(p,rp) |
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DP p; |
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Q *rp; |
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{ |
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VECT v; |
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dp_dtov(p,&v); igcdv(v,rp); |
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} |
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void dp_dtov(dp,rp) |
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DP dp; |
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VECT *rp; |
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{ |
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MP m,t; |
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int i,n; |
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VECT v; |
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pointer *p; |
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m = BDY(dp); |
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for ( t = m, n = 0; t; t = NEXT(t), n++ ); |
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MKVECT(v,n); |
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for ( i = 0, p = BDY(v), t = m; i < n; t = NEXT(t), i++ ) |
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p[i] = (pointer)(t->c); |
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*rp = v; |
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} |
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void dp_mbase(hlist,mbase) |
void dp_mbase(hlist,mbase) |
NODE hlist; |
NODE hlist; |
NODE *mbase; |
NODE *mbase; |
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} |
} |
} |
} |
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void dp_lnf_mod(p1,p2,g,mod,r1p,r2p) |
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DP p1,p2; |
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NODE g; |
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int mod; |
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DP *r1p,*r2p; |
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{ |
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DP r1,r2,b1,b2,t,s; |
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P c; |
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MQ c1,c2; |
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NODE l,b; |
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int n; |
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if ( !p1 ) { |
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*r1p = p1; *r2p = p2; return; |
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} |
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n = p1->nv; |
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for ( l = g, r1 = p1, r2 = p2; l; l = NEXT(l) ) { |
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if ( !r1 ) { |
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*r1p = r1; *r2p = r2; return; |
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} |
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b = BDY((LIST)BDY(l)); b1 = (DP)BDY(b); |
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if ( dl_equal(n,BDY(r1)->dl,BDY(b1)->dl) ) { |
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b2 = (DP)BDY(NEXT(b)); |
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invmq(mod,(MQ)BDY(b1)->c,&c1); |
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mulmq(mod,c1,(MQ)BDY(r1)->c,&c2); chsgnmp(mod,(P)c2,&c); |
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mulmdc(CO,mod,b1,c,&t); addmd(CO,mod,r1,t,&s); r1 = s; |
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mulmdc(CO,mod,b2,c,&t); addmd(CO,mod,r2,t,&s); r2 = s; |
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} |
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} |
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*r1p = r1; *r2p = r2; |
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} |
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void dp_nf_tab_mod(p,tab,mod,rp) |
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DP p; |
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LIST *tab; |
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int mod; |
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DP *rp; |
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{ |
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DP s,t,u; |
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MP m; |
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DL h; |
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int i,n; |
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if ( !p ) { |
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*rp = p; return; |
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} |
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n = p->nv; |
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for ( s = 0, i = 0, m = BDY(p); m; m = NEXT(m) ) { |
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h = m->dl; |
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while ( !dl_equal(n,h,BDY((DP)BDY(BDY(tab[i])))->dl ) ) |
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i++; |
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mulmdc(CO,mod,(DP)BDY(NEXT(BDY(tab[i]))),m->c,&t); |
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addmd(CO,mod,s,t,&u); s = u; |
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} |
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*rp = s; |
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} |
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void dp_ptozp(p,rp) |
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DP p,*rp; |
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{ |
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MP m,mr,mr0; |
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int i,n; |
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Q *w; |
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Q dvr; |
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P t; |
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if ( !p ) |
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*rp = 0; |
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else { |
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for ( m =BDY(p), n = 0; m; m = NEXT(m), n++ ); |
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w = (Q *)ALLOCA(n*sizeof(Q)); |
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for ( m =BDY(p), i = 0; i < n; m = NEXT(m), i++ ) |
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if ( NUM(m->c) ) |
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w[i] = (Q)m->c; |
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else |
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ptozp(m->c,1,&w[i],&t); |
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sortbynm(w,n); |
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qltozl(w,n,&dvr); |
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for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
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NEXTMP(mr0,mr); divsp(CO,m->c,(P)dvr,&mr->c); mr->dl = m->dl; |
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} |
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NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
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} |
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} |
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void dp_ptozp2(p0,p1,hp,rp) |
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DP p0,p1; |
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DP *hp,*rp; |
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{ |
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DP t,s,h,r; |
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MP m,mr,mr0,m0; |
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addd(CO,p0,p1,&t); dp_ptozp(t,&s); |
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if ( !p0 ) { |
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h = 0; r = s; |
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} else if ( !p1 ) { |
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h = s; r = 0; |
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} else { |
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for ( mr0 = 0, m = BDY(s), m0 = BDY(p0); m0; |
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m = NEXT(m), m0 = NEXT(m0) ) { |
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NEXTMP(mr0,mr); mr->c = m->c; mr->dl = m->dl; |
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} |
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NEXT(mr) = 0; MKDP(p0->nv,mr0,h); MKDP(p0->nv,m,r); |
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} |
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if ( h ) |
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h->sugar = p0->sugar; |
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if ( r ) |
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r->sugar = p1->sugar; |
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*hp = h; *rp = r; |
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} |
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void dp_vtod(c,p,rp) |
void dp_vtod(c,p,rp) |
Q *c; |
Q *c; |
DP p; |
DP p; |
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} |
} |
} |
} |
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void dp_ptozp_d(dist,ndist,p,rp) |
extern int mpi_mag; |
NODE dist; |
extern int PCoeffs; |
int ndist; |
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void dp_ptozp_d(p,rp) |
DP p,*rp; |
DP p,*rp; |
{ |
{ |
int i,j,k,l,n,nsep; |
int i,j,k,l,n,nsep; |
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N qn,gn; |
N qn,gn; |
double get_rtime(); |
double get_rtime(); |
int blen; |
int blen; |
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NODE dist; |
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int ndist; |
double t0; |
double t0; |
double t_e,t_d,t_d1,t_c; |
double t_e,t_d,t_d1,t_c; |
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extern int DP_NFStat; |
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extern LIST Dist; |
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if ( !p ) |
if ( !p ) |
*rp = 0; |
*rp = 0; |
else { |
else { |
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if ( PCoeffs ) { |
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dp_ptozp(p,rp); return; |
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} |
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if ( !Dist || p_mag(BDY(p)->c) <= mpi_mag ) { |
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dist = 0; ndist = 0; |
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if ( DP_NFStat ) fprintf(asir_out,"L"); |
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} else { |
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dist = BDY(Dist); ndist = length(dist); |
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if ( DP_NFStat ) fprintf(asir_out,"D"); |
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} |
for ( m = BDY(p), n = 0; m; m = NEXT(m), n++ ); |
for ( m = BDY(p), n = 0; m; m = NEXT(m), n++ ); |
nsep = ndist + 1; |
nsep = ndist + 1; |
if ( n <= nsep ) { |
if ( n <= nsep ) { |
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} |
} |
} |
} |
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void dp_ptozp2_d(dist,ndist,p0,p1,hp,rp) |
void dp_ptozp2_d(p0,p1,hp,rp) |
NODE dist; |
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int ndist; |
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DP p0,p1; |
DP p0,p1; |
DP *hp,*rp; |
DP *hp,*rp; |
{ |
{ |
DP t,s,h,r; |
DP t,s,h,r; |
MP m,mr,mr0,m0; |
MP m,mr,mr0,m0; |
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addd(CO,p0,p1,&t); dp_ptozp_d(dist,ndist,t,&s); |
addd(CO,p0,p1,&t); dp_ptozp_d(t,&s); |
if ( !p0 ) { |
if ( !p0 ) { |
h = 0; r = s; |
h = 0; r = s; |
} else if ( !p1 ) { |
} else if ( !p1 ) { |
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*hp = h; *rp = r; |
*hp = h; *rp = r; |
} |
} |
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int create_order_spec(obj,spec) |
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Obj obj; |
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struct order_spec *spec; |
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{ |
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int i,j,n,s,row,col; |
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struct order_pair *l; |
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NODE node,t,tn; |
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MAT m; |
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pointer **b; |
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int **w; |
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if ( !obj || NUM(obj) ) { |
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spec->id = 0; spec->obj = obj; |
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spec->ord.simple = QTOS((Q)obj); |
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return 1; |
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} else if ( OID(obj) == O_LIST ) { |
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node = BDY((LIST)obj); |
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for ( n = 0, t = node; t; t = NEXT(t), n++ ); |
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l = (struct order_pair *)MALLOC_ATOMIC(n*sizeof(struct order_pair)); |
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for ( i = 0, t = node, s = 0; i < n; t = NEXT(t), i++ ) { |
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tn = BDY((LIST)BDY(t)); l[i].order = QTOS((Q)BDY(tn)); |
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tn = NEXT(tn); l[i].length = QTOS((Q)BDY(tn)); |
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s += l[i].length; |
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} |
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spec->id = 1; spec->obj = obj; |
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spec->ord.block.order_pair = l; |
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spec->ord.block.length = n; spec->nv = s; |
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return 1; |
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} else if ( OID(obj) == O_MAT ) { |
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m = (MAT)obj; row = m->row; col = m->col; b = BDY(m); |
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w = almat(row,col); |
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for ( i = 0; i < row; i++ ) |
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for ( j = 0; j < col; j++ ) |
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w[i][j] = QTOS((Q)b[i][j]); |
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spec->id = 2; spec->obj = obj; |
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spec->nv = col; spec->ord.matrix.row = row; |
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spec->ord.matrix.matrix = w; |
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return 1; |
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} else |
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return 0; |
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} |
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void homogenize_order(old,n,new) |
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struct order_spec *old,*new; |
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int n; |
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{ |
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struct order_pair *l; |
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int length,nv,row,i,j; |
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int **newm,**oldm; |
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switch ( old->id ) { |
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case 0: |
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switch ( old->ord.simple ) { |
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case 0: |
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new->id = 0; new->ord.simple = 0; break; |
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case 1: |
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l = (struct order_pair *) |
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MALLOC_ATOMIC(2*sizeof(struct order_pair)); |
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l[0].length = n; l[0].order = 1; |
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l[1].length = 1; l[1].order = 2; |
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new->id = 1; |
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new->ord.block.order_pair = l; |
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new->ord.block.length = 2; new->nv = n+1; |
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break; |
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case 2: |
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new->id = 0; new->ord.simple = 1; break; |
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case 3: case 4: case 5: |
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new->id = 0; new->ord.simple = old->ord.simple+3; |
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dp_nelim = n-1; break; |
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case 6: case 7: case 8: case 9: |
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new->id = 0; new->ord.simple = old->ord.simple; break; |
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default: |
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error("homogenize_order : invalid input"); |
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} |
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break; |
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case 1: |
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length = old->ord.block.length; |
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l = (struct order_pair *) |
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MALLOC_ATOMIC((length+1)*sizeof(struct order_pair)); |
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bcopy((char *)old->ord.block.order_pair,(char *)l,length*sizeof(struct order_pair)); |
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l[length].order = 2; l[length].length = 1; |
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new->id = 1; new->nv = n+1; |
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new->ord.block.order_pair = l; |
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new->ord.block.length = length+1; |
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break; |
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case 2: |
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nv = old->nv; row = old->ord.matrix.row; |
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oldm = old->ord.matrix.matrix; newm = almat(row+1,nv+1); |
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for ( i = 0; i <= nv; i++ ) |
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newm[0][i] = 1; |
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for ( i = 0; i < row; i++ ) { |
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for ( j = 0; j < nv; j++ ) |
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newm[i+1][j] = oldm[i][j]; |
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newm[i+1][j] = 0; |
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} |
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new->id = 2; new->nv = nv+1; |
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new->ord.matrix.row = row+1; new->ord.matrix.matrix = newm; |
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break; |
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default: |
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error("homogenize_order : invalid input"); |
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} |
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} |
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extern int NoGCD; |
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void dp_prim(p,rp) |
void dp_prim(p,rp) |
DP p,*rp; |
DP p,*rp; |
{ |
{ |
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} |
} |
} |
} |
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void dp_cont(p,rp) |
void dp_mod(p,mod,subst,rp) |
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DP p; |
DP p; |
int mod; |
Q *rp; |
NODE subst; |
{ |
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VECT v; |
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dp_dtov(p,&v); igcdv(v,rp); |
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} |
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void dp_dtov(dp,rp) |
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DP dp; |
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VECT *rp; |
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{ |
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MP m,t; |
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int i,n; |
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VECT v; |
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pointer *p; |
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m = BDY(dp); |
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for ( t = m, n = 0; t; t = NEXT(t), n++ ); |
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MKVECT(v,n); |
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for ( i = 0, p = BDY(v), t = m; i < n; t = NEXT(t), i++ ) |
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p[i] = (pointer)(t->c); |
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*rp = v; |
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} |
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/* |
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* s-poly computation |
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* |
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*/ |
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void dp_sp(p1,p2,rp) |
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DP p1,p2; |
DP *rp; |
DP *rp; |
{ |
{ |
MP m,mr,mr0; |
int i,n,td; |
P t,s,s1; |
int *w; |
V v; |
DL d1,d2,d; |
NODE tn; |
MP m; |
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DP t,s1,s2,u; |
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Q c,c1,c2; |
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N gn,tn; |
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if ( !p ) |
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
*rp = 0; |
w = (int *)ALLOCA(n*sizeof(int)); |
else { |
for ( i = 0, td = 0; i < n; i++ ) { |
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
for ( tn = subst, s = m->c; tn; tn = NEXT(tn) ) { |
} |
v = VR((P)BDY(tn)); tn = NEXT(tn); |
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substp(CO,s,v,(P)BDY(tn),&s1); s = s1; |
NEWDL(d,n); d->td = td - d1->td; |
} |
for ( i = 0; i < n; i++ ) |
ptomp(mod,s,&t); |
d->d[i] = w[i] - d1->d[i]; |
if ( t ) { |
c1 = (Q)BDY(p1)->c; c2 = (Q)BDY(p2)->c; |
NEXTMP(mr0,mr); mr->c = t; mr->dl = m->dl; |
if ( INT(c1) && INT(c2) ) { |
} |
gcdn(NM(c1),NM(c2),&gn); |
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if ( !UNIN(gn) ) { |
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divsn(NM(c1),gn,&tn); NTOQ(tn,SGN(c1),c); c1 = c; |
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divsn(NM(c2),gn,&tn); NTOQ(tn,SGN(c2),c); c2 = c; |
} |
} |
if ( mr0 ) { |
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NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
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} else |
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*rp = 0; |
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} |
} |
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NEWMP(m); m->dl = d; m->c = (P)c2; NEXT(m) = 0; |
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MKDP(n,m,s1); s1->sugar = d->td; muld(CO,s1,p1,&t); |
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NEWDL(d,n); d->td = td - d2->td; |
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for ( i = 0; i < n; i++ ) |
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d->d[i] = w[i] - d2->d[i]; |
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NEWMP(m); m->dl = d; m->c = (P)c1; NEXT(m) = 0; |
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MKDP(n,m,s2); s2->sugar = d->td; muld(CO,s2,p2,&u); |
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subd(CO,t,u,rp); |
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if ( GenTrace ) { |
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LIST hist; |
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NODE node; |
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node = mknode(4,ONE,0,s1,ONE); |
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MKLIST(hist,node); |
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MKNODE(TraceList,hist,0); |
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node = mknode(4,ONE,0,0,ONE); |
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chsgnd(s2,(DP *)&ARG2(node)); |
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MKLIST(hist,node); |
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MKNODE(node,hist,TraceList); TraceList = node; |
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} |
} |
} |
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void dp_rat(p,rp) |
void _dp_sp_dup(p1,p2,rp) |
DP p; |
DP p1,p2; |
DP *rp; |
DP *rp; |
{ |
{ |
MP m,mr,mr0; |
int i,n,td; |
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int *w; |
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DL d1,d2,d; |
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MP m; |
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DP t,s1,s2,u; |
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Q c,c1,c2; |
|
N gn,tn; |
|
|
if ( !p ) |
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
*rp = 0; |
w = (int *)ALLOCA(n*sizeof(int)); |
else { |
for ( i = 0, td = 0; i < n; i++ ) { |
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
NEXTMP(mr0,mr); mptop(m->c,&mr->c); mr->dl = m->dl; |
} |
|
|
|
_NEWDL(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
c1 = (Q)BDY(p1)->c; c2 = (Q)BDY(p2)->c; |
|
if ( INT(c1) && INT(c2) ) { |
|
gcdn(NM(c1),NM(c2),&gn); |
|
if ( !UNIN(gn) ) { |
|
divsn(NM(c1),gn,&tn); NTOQ(tn,SGN(c1),c); c1 = c; |
|
divsn(NM(c2),gn,&tn); NTOQ(tn,SGN(c2),c); c2 = c; |
} |
} |
if ( mr0 ) { |
|
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} else |
|
*rp = 0; |
|
} |
} |
|
|
|
_NEWMP(m); m->dl = d; m->c = (P)c2; NEXT(m) = 0; |
|
_MKDP(n,m,s1); s1->sugar = d->td; _muld_dup(CO,s1,p1,&t); _free_dp(s1); |
|
|
|
_NEWDL(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
_NEWMP(m); m->dl = d; chsgnp((P)c1,&m->c); NEXT(m) = 0; |
|
_MKDP(n,m,s2); s2->sugar = d->td; _muld_dup(CO,s2,p2,&u); _free_dp(s2); |
|
|
|
_addd_destructive(CO,t,u,rp); |
|
if ( GenTrace ) { |
|
LIST hist; |
|
NODE node; |
|
|
|
node = mknode(4,ONE,0,s1,ONE); |
|
MKLIST(hist,node); |
|
MKNODE(TraceList,hist,0); |
|
|
|
node = mknode(4,ONE,0,0,ONE); |
|
chsgnd(s2,(DP *)&ARG2(node)); |
|
MKLIST(hist,node); |
|
MKNODE(node,hist,TraceList); TraceList = node; |
|
} |
} |
} |
|
|
|
void dp_sp_mod(p1,p2,mod,rp) |
|
DP p1,p2; |
|
int mod; |
|
DP *rp; |
|
{ |
|
int i,n,td; |
|
int *w; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,u; |
|
|
void dp_nf(b,g,ps,full,rp) |
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
NODE b; |
w = (int *)ALLOCA(n*sizeof(int)); |
DP g; |
for ( i = 0, td = 0; i < n; i++ ) { |
DP *ps; |
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
int full; |
} |
|
NEWDL_NOINIT(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
NEWMP(m); m->dl = d; m->c = (P)BDY(p2)->c; NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,p1,s,&t); |
|
NEWDL_NOINIT(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
NEWMP(m); m->dl = d; m->c = (P)BDY(p1)->c; NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,p2,s,&u); |
|
submd(CO,mod,t,u,rp); |
|
} |
|
|
|
void _dp_sp_mod_dup(p1,p2,mod,rp) |
|
DP p1,p2; |
|
int mod; |
DP *rp; |
DP *rp; |
{ |
{ |
DP u,p,d,s,t,dmy1; |
int i,n,td; |
P dmy; |
int *w; |
NODE l; |
DL d1,d2,d; |
MP m,mr; |
MP m; |
int i,n; |
DP t,s,u; |
int *wb; |
|
int sugar,psugar; |
|
|
|
if ( !g ) { |
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
*rp = 0; return; |
w = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, td = 0; i < n; i++ ) { |
|
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
} |
} |
for ( n = 0, l = b; l; l = NEXT(l), n++ ); |
_NEWDL(d,n); d->td = td - d1->td; |
wb = (int *)ALLOCA(n*sizeof(int)); |
for ( i = 0; i < n; i++ ) |
for ( i = 0, l = b; i < n; l = NEXT(l), i++ ) |
d->d[i] = w[i] - d1->d[i]; |
wb[i] = QTOS((Q)BDY(l)); |
_NEWMP(m); m->dl = d; m->c = BDY(p2)->c; NEXT(m) = 0; |
sugar = g->sugar; |
_MKDP(n,m,s); s->sugar = d->td; _mulmd_dup(mod,s,p1,&t); _free_dp(s); |
for ( d = 0; g; ) { |
_NEWDL(d,n); d->td = td - d2->td; |
for ( u = 0, i = 0; i < n; i++ ) { |
for ( i = 0; i < n; i++ ) |
if ( dp_redble(g,p = ps[wb[i]]) ) { |
d->d[i] = w[i] - d2->d[i]; |
dp_red(d,g,p,&t,&u,&dmy,&dmy1); |
_NEWMP(m); m->dl = d; m->c = STOI(mod - ITOS(BDY(p1)->c)); NEXT(m) = 0; |
psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar; |
_MKDP(n,m,s); s->sugar = d->td; _mulmd_dup(mod,s,p2,&u); _free_dp(s); |
sugar = MAX(sugar,psugar); |
_addmd_destructive(mod,t,u,rp); |
if ( !u ) { |
} |
if ( d ) |
|
d->sugar = sugar; |
void _dp_sp_mod(p1,p2,mod,rp) |
*rp = d; return; |
DP p1,p2; |
} |
int mod; |
d = t; |
DP *rp; |
break; |
{ |
} |
int i,n,td; |
|
int *w; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,u; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
w = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, td = 0; i < n; i++ ) { |
|
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
|
} |
|
NEWDL(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
NEWMP(m); m->dl = d; m->c = BDY(p2)->c; NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd_dup(mod,s,p1,&t); |
|
NEWDL(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
NEWMP(m); m->dl = d; m->c = STOI(mod - ITOS(BDY(p1)->c)); NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd_dup(mod,s,p2,&u); |
|
addmd_destructive(mod,t,u,rp); |
|
} |
|
|
|
/* |
|
* m-reduction |
|
* do content reduction over Z or Q(x,...) |
|
* do nothing over finite fields |
|
* |
|
*/ |
|
|
|
void dp_red(p0,p1,p2,head,rest,dnp,multp) |
|
DP p0,p1,p2; |
|
DP *head,*rest; |
|
P *dnp; |
|
DP *multp; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,r,h; |
|
Q c,c1,c2; |
|
N gn,tn; |
|
P g,a; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
c1 = (Q)BDY(p1)->c; c2 = (Q)BDY(p2)->c; |
|
if ( dp_fcoeffs ) { |
|
/* do nothing */ |
|
} else if ( INT(c1) && INT(c2) ) { |
|
gcdn(NM(c1),NM(c2),&gn); |
|
if ( !UNIN(gn) ) { |
|
divsn(NM(c1),gn,&tn); NTOQ(tn,SGN(c1),c); c1 = c; |
|
divsn(NM(c2),gn,&tn); NTOQ(tn,SGN(c2),c); c2 = c; |
} |
} |
if ( u ) |
} else { |
g = u; |
ezgcdpz(CO,(P)c1,(P)c2,&g); |
else if ( !full ) { |
divsp(CO,(P)c1,g,&a); c1 = (Q)a; divsp(CO,(P)c2,g,&a); c2 = (Q)a; |
if ( g ) { |
|
MKDP(g->nv,BDY(g),t); t->sugar = sugar; g = t; |
|
} |
|
*rp = g; return; |
|
} else { |
|
m = BDY(g); NEWMP(mr); mr->dl = m->dl; mr->c = m->c; |
|
NEXT(mr) = 0; MKDP(g->nv,mr,t); t->sugar = mr->dl->td; |
|
addd(CO,d,t,&s); d = s; |
|
dp_rest(g,&t); g = t; |
|
} |
|
} |
} |
if ( d ) |
NEWMP(m); m->dl = d; chsgnp((P)c1,&m->c); NEXT(m) = 0; MKDP(n,m,s); s->sugar = d->td; |
d->sugar = sugar; |
*multp = s; |
*rp = d; |
muld(CO,s,p2,&t); muldc(CO,p1,(P)c2,&s); addd(CO,s,t,&r); |
|
muldc(CO,p0,(P)c2,&h); |
|
*head = h; *rest = r; *dnp = (P)c2; |
} |
} |
|
|
|
/* m-reduction over a field */ |
|
|
|
void dp_red_f(p1,p2,rest) |
|
DP p1,p2; |
|
DP *rest; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,r,h; |
|
Obj a,b; |
|
|
|
n = p1->nv; |
|
d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
|
|
NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
|
|
NEWMP(m); m->dl = d; |
|
divr(CO,(Obj)BDY(p1)->c,(Obj)BDY(p2)->c,&a); chsgnr(a,&b); |
|
C(m) = (P)b; |
|
NEXT(m) = 0; MKDP(n,m,s); s->sugar = d->td; |
|
|
|
muld(CO,s,p2,&t); addd(CO,p1,t,rest); |
|
} |
|
|
|
void dp_red_mod(p0,p1,p2,mod,head,rest,dnp) |
|
DP p0,p1,p2; |
|
int mod; |
|
DP *head,*rest; |
|
P *dnp; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,r,h; |
|
P c1,c2,g,u; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
c1 = (P)BDY(p1)->c; c2 = (P)BDY(p2)->c; |
|
gcdprsmp(CO,mod,c1,c2,&g); |
|
divsmp(CO,mod,c1,g,&u); c1 = u; divsmp(CO,mod,c2,g,&u); c2 = u; |
|
if ( NUM(c2) ) { |
|
divsmp(CO,mod,c1,c2,&u); c1 = u; c2 = (P)ONEM; |
|
} |
|
NEWMP(m); m->dl = d; chsgnmp(mod,(P)c1,&m->c); NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,s,p2,&t); |
|
if ( NUM(c2) ) { |
|
addmd(CO,mod,p1,t,&r); h = p0; |
|
} else { |
|
mulmdc(CO,mod,p1,c2,&s); addmd(CO,mod,s,t,&r); mulmdc(CO,mod,p0,c2,&h); |
|
} |
|
*head = h; *rest = r; *dnp = c2; |
|
} |
|
|
|
struct oEGT eg_red_mod; |
|
|
|
void _dp_red_mod_destructive(p1,p2,mod,rp) |
|
DP p1,p2; |
|
int mod; |
|
DP *rp; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s; |
|
int c,c1,c2; |
|
struct oEGT t0,t1; |
|
extern int do_weyl; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
_NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
c = invm(ITOS(BDY(p2)->c),mod); |
|
c2 = ITOS(BDY(p1)->c); |
|
DMAR(c,c2,0,mod,c1); |
|
_NEWMP(m); m->dl = d; m->c = STOI(mod-c1); NEXT(m) = 0; |
|
#if 0 |
|
_MKDP(n,m,s); s->sugar = d->td; |
|
_mulmd_dup(mod,s,p2,&t); _free_dp(s); |
|
#else |
|
if ( do_weyl ) { |
|
_weyl_mulmdm_dup(mod,p2,m,&t); _FREEMP(m); |
|
} else { |
|
_mulmdm_dup(mod,p2,m,&t); _FREEMP(m); |
|
} |
|
#endif |
|
/* get_eg(&t0); */ |
|
_addmd_destructive(mod,p1,t,rp); |
|
/* get_eg(&t1); add_eg(&eg_red_mod,&t0,&t1); */ |
|
} |
|
|
|
/* |
|
* normal form computation |
|
* |
|
*/ |
|
|
void dp_true_nf(b,g,ps,full,rp,dnp) |
void dp_true_nf(b,g,ps,full,rp,dnp) |
NODE b; |
NODE b; |
DP g; |
DP g; |
|
|
*rp = d; *dnp = dn; |
*rp = d; *dnp = dn; |
} |
} |
|
|
|
/* nf computation over Z */ |
|
|
void dp_nf_ptozp(b,g,ps,full,multiple,rp) |
void dp_nf_z(b,g,ps,full,multiple,rp) |
NODE b; |
NODE b; |
DP g; |
DP g; |
DP *ps; |
DP *ps; |
|
|
wb = (int *)ALLOCA(n*sizeof(int)); |
wb = (int *)ALLOCA(n*sizeof(int)); |
for ( i = 0, l = b; i < n; l = NEXT(l), i++ ) |
for ( i = 0, l = b; i < n; l = NEXT(l), i++ ) |
wb[i] = QTOS((Q)BDY(l)); |
wb[i] = QTOS((Q)BDY(l)); |
|
|
hmag = multiple*HMAG(g); |
hmag = multiple*HMAG(g); |
sugar = g->sugar; |
sugar = g->sugar; |
|
|
for ( d = 0; g; ) { |
for ( d = 0; g; ) { |
for ( u = 0, i = 0; i < n; i++ ) { |
for ( u = 0, i = 0; i < n; i++ ) { |
if ( dp_redble(g,p = ps[wb[i]]) ) { |
if ( dp_redble(g,p = ps[wb[i]]) ) { |
|
|
if ( u ) { |
if ( u ) { |
g = u; |
g = u; |
if ( d ) { |
if ( d ) { |
if ( HMAG(d) > hmag ) { |
if ( multiple && HMAG(d) > hmag ) { |
dp_ptozp2(d,g,&t,&u); d = t; g = u; |
dp_ptozp2(d,g,&t,&u); d = t; g = u; |
hmag = multiple*HMAG(d); |
hmag = multiple*HMAG(d); |
} |
} |
} else { |
} else { |
if ( HMAG(g) > hmag ) { |
if ( multiple && HMAG(g) > hmag ) { |
dp_ptozp(g,&t); g = t; |
dp_ptozp(g,&t); g = t; |
hmag = multiple*HMAG(g); |
hmag = multiple*HMAG(g); |
} |
} |
|
|
*rp = d; |
*rp = d; |
} |
} |
|
|
|
/* nf computation over a field */ |
|
|
void dp_nf_mod_qindex(b,g,ps,mod,full,rp) |
void dp_nf_f(b,g,ps,full,rp) |
NODE b; |
NODE b; |
DP g; |
DP g; |
DP *ps; |
DP *ps; |
int mod,full; |
int full; |
DP *rp; |
DP *rp; |
{ |
{ |
DP u,p,d,s,t; |
DP u,p,d,s,t; |
P dmy; |
P dmy; |
NODE l; |
NODE l; |
MP m,mr; |
MP m,mr; |
|
int i,n; |
|
int *wb; |
int sugar,psugar; |
int sugar,psugar; |
|
|
if ( !g ) { |
if ( !g ) { |
*rp = 0; return; |
*rp = 0; return; |
} |
} |
|
for ( n = 0, l = b; l; l = NEXT(l), n++ ); |
|
wb = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, l = b; i < n; l = NEXT(l), i++ ) |
|
wb[i] = QTOS((Q)BDY(l)); |
|
|
sugar = g->sugar; |
sugar = g->sugar; |
for ( d = 0; g; ) { |
for ( d = 0; g; ) { |
for ( u = 0, l = b; l; l = NEXT(l) ) { |
for ( u = 0, i = 0; i < n; i++ ) { |
if ( dp_redble(g,p = ps[QTOS((Q)BDY(l))]) ) { |
if ( dp_redble(g,p = ps[wb[i]]) ) { |
dp_red_mod(d,g,p,mod,&t,&u,&dmy); |
dp_red_f(g,p,&u); |
psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar; |
psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar; |
sugar = MAX(sugar,psugar); |
sugar = MAX(sugar,psugar); |
if ( !u ) { |
if ( !u ) { |
|
|
d->sugar = sugar; |
d->sugar = sugar; |
*rp = d; return; |
*rp = d; return; |
} |
} |
d = t; |
|
break; |
break; |
} |
} |
} |
} |
|
|
} else { |
} else { |
m = BDY(g); NEWMP(mr); mr->dl = m->dl; mr->c = m->c; |
m = BDY(g); NEWMP(mr); mr->dl = m->dl; mr->c = m->c; |
NEXT(mr) = 0; MKDP(g->nv,mr,t); t->sugar = mr->dl->td; |
NEXT(mr) = 0; MKDP(g->nv,mr,t); t->sugar = mr->dl->td; |
addmd(CO,mod,d,t,&s); d = s; |
addd(CO,d,t,&s); d = s; |
dp_rest(g,&t); g = t; |
dp_rest(g,&t); g = t; |
} |
} |
} |
} |
|
|
*rp = d; |
*rp = d; |
} |
} |
|
|
|
/* nf computation over GF(mod) (only for internal use) */ |
|
|
void dp_nf_mod(b,g,ps,mod,full,rp) |
void dp_nf_mod(b,g,ps,mod,full,rp) |
NODE b; |
NODE b; |
DP g; |
DP g; |
|
|
*rp = d; *dnp = dn; |
*rp = d; *dnp = dn; |
} |
} |
|
|
|
void _dp_nf_mod_destructive(b,g,ps,mod,full,rp) |
|
NODE b; |
|
DP g; |
|
DP *ps; |
|
int mod,full; |
|
DP *rp; |
|
{ |
|
DP u,p,d,s,t; |
|
NODE l; |
|
MP m,mr,mrd; |
|
int sugar,psugar,n,h_reducible,i; |
|
|
|
if ( !g ) { |
|
*rp = 0; return; |
|
} |
|
sugar = g->sugar; |
|
n = g->nv; |
|
for ( d = 0; g; ) { |
|
for ( h_reducible = 0, l = b; l; l = NEXT(l) ) { |
|
if ( dp_redble(g,p = ps[(int)BDY(l)]) ) { |
|
h_reducible = 1; |
|
psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar; |
|
_dp_red_mod_destructive(g,p,mod,&u); g = u; |
|
sugar = MAX(sugar,psugar); |
|
if ( !g ) { |
|
if ( d ) |
|
d->sugar = sugar; |
|
_dptodp(d,rp); _free_dp(d); return; |
|
} |
|
break; |
|
} |
|
} |
|
if ( !h_reducible ) { |
|
/* head term is not reducible */ |
|
if ( !full ) { |
|
if ( g ) |
|
g->sugar = sugar; |
|
_dptodp(g,rp); _free_dp(g); return; |
|
} else { |
|
m = BDY(g); |
|
if ( NEXT(m) ) { |
|
BDY(g) = NEXT(m); NEXT(m) = 0; |
|
} else { |
|
_FREEDP(g); g = 0; |
|
} |
|
if ( d ) { |
|
for ( mrd = BDY(d); NEXT(mrd); mrd = NEXT(mrd) ); |
|
NEXT(mrd) = m; |
|
} else { |
|
_MKDP(n,m,d); |
|
} |
|
} |
|
} |
|
} |
|
if ( d ) |
|
d->sugar = sugar; |
|
_dptodp(d,rp); _free_dp(d); |
|
} |
|
|
|
/* reduction by linear base over a field */ |
|
|
|
void dp_lnf_f(p1,p2,g,r1p,r2p) |
|
DP p1,p2; |
|
NODE g; |
|
DP *r1p,*r2p; |
|
{ |
|
DP r1,r2,b1,b2,t,s; |
|
Obj c,c1,c2; |
|
NODE l,b; |
|
int n; |
|
|
|
if ( !p1 ) { |
|
*r1p = p1; *r2p = p2; return; |
|
} |
|
n = p1->nv; |
|
for ( l = g, r1 = p1, r2 = p2; l; l = NEXT(l) ) { |
|
if ( !r1 ) { |
|
*r1p = r1; *r2p = r2; return; |
|
} |
|
b = BDY((LIST)BDY(l)); b1 = (DP)BDY(b); |
|
if ( dl_equal(n,BDY(r1)->dl,BDY(b1)->dl) ) { |
|
b2 = (DP)BDY(NEXT(b)); |
|
divr(CO,(Obj)ONE,(Obj)BDY(b1)->c,&c1); |
|
mulr(CO,c1,(Obj)BDY(r1)->c,&c2); chsgnr(c2,&c); |
|
muldc(CO,b1,(P)c,&t); addd(CO,r1,t,&s); r1 = s; |
|
muldc(CO,b2,(P)c,&t); addd(CO,r2,t,&s); r2 = s; |
|
} |
|
} |
|
*r1p = r1; *r2p = r2; |
|
} |
|
|
|
/* reduction by linear base over GF(mod) */ |
|
|
|
void dp_lnf_mod(p1,p2,g,mod,r1p,r2p) |
|
DP p1,p2; |
|
NODE g; |
|
int mod; |
|
DP *r1p,*r2p; |
|
{ |
|
DP r1,r2,b1,b2,t,s; |
|
P c; |
|
MQ c1,c2; |
|
NODE l,b; |
|
int n; |
|
|
|
if ( !p1 ) { |
|
*r1p = p1; *r2p = p2; return; |
|
} |
|
n = p1->nv; |
|
for ( l = g, r1 = p1, r2 = p2; l; l = NEXT(l) ) { |
|
if ( !r1 ) { |
|
*r1p = r1; *r2p = r2; return; |
|
} |
|
b = BDY((LIST)BDY(l)); b1 = (DP)BDY(b); |
|
if ( dl_equal(n,BDY(r1)->dl,BDY(b1)->dl) ) { |
|
b2 = (DP)BDY(NEXT(b)); |
|
invmq(mod,(MQ)BDY(b1)->c,&c1); |
|
mulmq(mod,c1,(MQ)BDY(r1)->c,&c2); chsgnmp(mod,(P)c2,&c); |
|
mulmdc(CO,mod,b1,c,&t); addmd(CO,mod,r1,t,&s); r1 = s; |
|
mulmdc(CO,mod,b2,c,&t); addmd(CO,mod,r2,t,&s); r2 = s; |
|
} |
|
} |
|
*r1p = r1; *r2p = r2; |
|
} |
|
|
|
void dp_nf_tab_mod(p,tab,mod,rp) |
|
DP p; |
|
LIST *tab; |
|
int mod; |
|
DP *rp; |
|
{ |
|
DP s,t,u; |
|
MP m; |
|
DL h; |
|
int i,n; |
|
|
|
if ( !p ) { |
|
*rp = p; return; |
|
} |
|
n = p->nv; |
|
for ( s = 0, i = 0, m = BDY(p); m; m = NEXT(m) ) { |
|
h = m->dl; |
|
while ( !dl_equal(n,h,BDY((DP)BDY(BDY(tab[i])))->dl ) ) |
|
i++; |
|
mulmdc(CO,mod,(DP)BDY(NEXT(BDY(tab[i]))),m->c,&t); |
|
addmd(CO,mod,s,t,&u); s = u; |
|
} |
|
*rp = s; |
|
} |
|
|
|
/* |
|
* setting flags |
|
* |
|
*/ |
|
|
|
int create_order_spec(obj,spec) |
|
Obj obj; |
|
struct order_spec *spec; |
|
{ |
|
int i,j,n,s,row,col; |
|
struct order_pair *l; |
|
NODE node,t,tn; |
|
MAT m; |
|
pointer **b; |
|
int **w; |
|
|
|
if ( !obj || NUM(obj) ) { |
|
spec->id = 0; spec->obj = obj; |
|
spec->ord.simple = QTOS((Q)obj); |
|
return 1; |
|
} else if ( OID(obj) == O_LIST ) { |
|
node = BDY((LIST)obj); |
|
for ( n = 0, t = node; t; t = NEXT(t), n++ ); |
|
l = (struct order_pair *)MALLOC_ATOMIC(n*sizeof(struct order_pair)); |
|
for ( i = 0, t = node, s = 0; i < n; t = NEXT(t), i++ ) { |
|
tn = BDY((LIST)BDY(t)); l[i].order = QTOS((Q)BDY(tn)); |
|
tn = NEXT(tn); l[i].length = QTOS((Q)BDY(tn)); |
|
s += l[i].length; |
|
} |
|
spec->id = 1; spec->obj = obj; |
|
spec->ord.block.order_pair = l; |
|
spec->ord.block.length = n; spec->nv = s; |
|
return 1; |
|
} else if ( OID(obj) == O_MAT ) { |
|
m = (MAT)obj; row = m->row; col = m->col; b = BDY(m); |
|
w = almat(row,col); |
|
for ( i = 0; i < row; i++ ) |
|
for ( j = 0; j < col; j++ ) |
|
w[i][j] = QTOS((Q)b[i][j]); |
|
spec->id = 2; spec->obj = obj; |
|
spec->nv = col; spec->ord.matrix.row = row; |
|
spec->ord.matrix.matrix = w; |
|
return 1; |
|
} else |
|
return 0; |
|
} |
|
|
|
/* |
|
* converters |
|
* |
|
*/ |
|
|
|
void dp_homo(p,rp) |
|
DP p; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
int i,n,nv,td; |
|
DL dl,dlh; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
n = p->nv; nv = n + 1; |
|
m = BDY(p); td = sugard(m); |
|
for ( mr0 = 0; m; m = NEXT(m) ) { |
|
NEXTMP(mr0,mr); mr->c = m->c; |
|
dl = m->dl; |
|
mr->dl = dlh = (DL)MALLOC_ATOMIC((nv+1)*sizeof(int)); |
|
dlh->td = td; |
|
for ( i = 0; i < n; i++ ) |
|
dlh->d[i] = dl->d[i]; |
|
dlh->d[n] = td - dl->td; |
|
} |
|
NEXT(mr) = 0; MKDP(nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} |
|
} |
|
|
|
void dp_dehomo(p,rp) |
|
DP p; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
int i,n,nv; |
|
DL dl,dlh; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
n = p->nv; nv = n - 1; |
|
m = BDY(p); |
|
for ( mr0 = 0; m; m = NEXT(m) ) { |
|
NEXTMP(mr0,mr); mr->c = m->c; |
|
dlh = m->dl; |
|
mr->dl = dl = (DL)MALLOC_ATOMIC((nv+1)*sizeof(int)); |
|
dl->td = dlh->td - dlh->d[nv]; |
|
for ( i = 0; i < nv; i++ ) |
|
dl->d[i] = dlh->d[i]; |
|
} |
|
NEXT(mr) = 0; MKDP(nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} |
|
} |
|
|
|
void dp_mod(p,mod,subst,rp) |
|
DP p; |
|
int mod; |
|
NODE subst; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
P t,s,s1; |
|
V v; |
|
NODE tn; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
|
for ( tn = subst, s = m->c; tn; tn = NEXT(tn) ) { |
|
v = VR((P)BDY(tn)); tn = NEXT(tn); |
|
substp(CO,s,v,(P)BDY(tn),&s1); s = s1; |
|
} |
|
ptomp(mod,s,&t); |
|
if ( t ) { |
|
NEXTMP(mr0,mr); mr->c = t; mr->dl = m->dl; |
|
} |
|
} |
|
if ( mr0 ) { |
|
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} else |
|
*rp = 0; |
|
} |
|
} |
|
|
|
void dp_rat(p,rp) |
|
DP p; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
for ( mr0 = 0, m = BDY(p); m; m = NEXT(m) ) { |
|
NEXTMP(mr0,mr); mptop(m->c,&mr->c); mr->dl = m->dl; |
|
} |
|
if ( mr0 ) { |
|
NEXT(mr) = 0; MKDP(p->nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} else |
|
*rp = 0; |
|
} |
|
} |
|
|
|
|
|
void homogenize_order(old,n,new) |
|
struct order_spec *old,*new; |
|
int n; |
|
{ |
|
struct order_pair *l; |
|
int length,nv,row,i,j; |
|
int **newm,**oldm; |
|
|
|
switch ( old->id ) { |
|
case 0: |
|
switch ( old->ord.simple ) { |
|
case 0: |
|
new->id = 0; new->ord.simple = 0; break; |
|
case 1: |
|
l = (struct order_pair *) |
|
MALLOC_ATOMIC(2*sizeof(struct order_pair)); |
|
l[0].length = n; l[0].order = 1; |
|
l[1].length = 1; l[1].order = 2; |
|
new->id = 1; |
|
new->ord.block.order_pair = l; |
|
new->ord.block.length = 2; new->nv = n+1; |
|
break; |
|
case 2: |
|
new->id = 0; new->ord.simple = 1; break; |
|
case 3: case 4: case 5: |
|
new->id = 0; new->ord.simple = old->ord.simple+3; |
|
dp_nelim = n-1; break; |
|
case 6: case 7: case 8: case 9: |
|
new->id = 0; new->ord.simple = old->ord.simple; break; |
|
default: |
|
error("homogenize_order : invalid input"); |
|
} |
|
break; |
|
case 1: |
|
length = old->ord.block.length; |
|
l = (struct order_pair *) |
|
MALLOC_ATOMIC((length+1)*sizeof(struct order_pair)); |
|
bcopy((char *)old->ord.block.order_pair,(char *)l,length*sizeof(struct order_pair)); |
|
l[length].order = 2; l[length].length = 1; |
|
new->id = 1; new->nv = n+1; |
|
new->ord.block.order_pair = l; |
|
new->ord.block.length = length+1; |
|
break; |
|
case 2: |
|
nv = old->nv; row = old->ord.matrix.row; |
|
oldm = old->ord.matrix.matrix; newm = almat(row+1,nv+1); |
|
for ( i = 0; i <= nv; i++ ) |
|
newm[0][i] = 1; |
|
for ( i = 0; i < row; i++ ) { |
|
for ( j = 0; j < nv; j++ ) |
|
newm[i+1][j] = oldm[i][j]; |
|
newm[i+1][j] = 0; |
|
} |
|
new->id = 2; new->nv = nv+1; |
|
new->ord.matrix.row = row+1; new->ord.matrix.matrix = newm; |
|
break; |
|
default: |
|
error("homogenize_order : invalid input"); |
|
} |
|
} |
|
|
void qltozl(w,n,dvr) |
void qltozl(w,n,dvr) |
Q *w,*dvr; |
Q *w,*dvr; |
int n; |
int n; |
|
|
qsort(w,n,sizeof(Q),(int (*)(const void *,const void *))comp_nm); |
qsort(w,n,sizeof(Q),(int (*)(const void *,const void *))comp_nm); |
} |
} |
|
|
|
|
|
/* |
|
* simple operations |
|
* |
|
*/ |
|
|
int dp_redble(p1,p2) |
int dp_redble(p1,p2) |
DP p1,p2; |
DP p1,p2; |
{ |
{ |
|
|
} |
} |
} |
} |
|
|
void dp_red_mod(p0,p1,p2,mod,head,rest,dnp) |
|
DP p0,p1,p2; |
|
int mod; |
|
DP *head,*rest; |
|
P *dnp; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,r,h; |
|
P c1,c2,g,u; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
c1 = (P)BDY(p1)->c; c2 = (P)BDY(p2)->c; |
|
gcdprsmp(CO,mod,c1,c2,&g); |
|
divsmp(CO,mod,c1,g,&u); c1 = u; divsmp(CO,mod,c2,g,&u); c2 = u; |
|
if ( NUM(c2) ) { |
|
divsmp(CO,mod,c1,c2,&u); c1 = u; c2 = (P)ONEM; |
|
} |
|
NEWMP(m); m->dl = d; chsgnmp(mod,(P)c1,&m->c); NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,p2,s,&t); |
|
if ( NUM(c2) ) { |
|
addmd(CO,mod,p1,t,&r); h = p0; |
|
} else { |
|
mulmdc(CO,mod,p1,c2,&s); addmd(CO,mod,s,t,&r); mulmdc(CO,mod,p0,c2,&h); |
|
} |
|
*head = h; *rest = r; *dnp = c2; |
|
} |
|
|
|
void dp_subd(p1,p2,rp) |
void dp_subd(p1,p2,rp) |
DP p1,p2; |
DP p1,p2; |
DP *rp; |
DP *rp; |
|
|
*rp = s; |
*rp = s; |
} |
} |
|
|
void dp_red(p0,p1,p2,head,rest,dnp,multp) |
|
DP p0,p1,p2; |
|
DP *head,*rest; |
|
P *dnp; |
|
DP *multp; |
|
{ |
|
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,r,h; |
|
Q c,c1,c2; |
|
N gn,tn; |
|
P g,a; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
NEWDL(d,n); d->td = d1->td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = d1->d[i]-d2->d[i]; |
|
c1 = (Q)BDY(p1)->c; c2 = (Q)BDY(p2)->c; |
|
if ( dp_fcoeffs ) { |
|
/* do nothing */ |
|
} else if ( INT(c1) && INT(c2) ) { |
|
gcdn(NM(c1),NM(c2),&gn); |
|
if ( !UNIN(gn) ) { |
|
divsn(NM(c1),gn,&tn); NTOQ(tn,SGN(c1),c); c1 = c; |
|
divsn(NM(c2),gn,&tn); NTOQ(tn,SGN(c2),c); c2 = c; |
|
} |
|
} else { |
|
ezgcdpz(CO,(P)c1,(P)c2,&g); |
|
divsp(CO,(P)c1,g,&a); c1 = (Q)a; divsp(CO,(P)c2,g,&a); c2 = (Q)a; |
|
} |
|
NEWMP(m); m->dl = d; chsgnp((P)c1,&m->c); NEXT(m) = 0; MKDP(n,m,s); s->sugar = d->td; |
|
*multp = s; |
|
muld(CO,s,p2,&t); muldc(CO,p1,(P)c2,&s); addd(CO,s,t,&r); |
|
muldc(CO,p0,(P)c2,&h); |
|
*head = h; *rest = r; *dnp = (P)c2; |
|
} |
|
|
|
extern int GenTrace; |
|
extern NODE TraceList; |
|
|
|
void dp_sp(p1,p2,rp) |
|
DP p1,p2; |
|
DP *rp; |
|
{ |
|
int i,n,td; |
|
int *w; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s1,s2,u; |
|
Q c,c1,c2; |
|
N gn,tn; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
w = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, td = 0; i < n; i++ ) { |
|
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
|
} |
|
|
|
NEWDL(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
c1 = (Q)BDY(p1)->c; c2 = (Q)BDY(p2)->c; |
|
if ( INT(c1) && INT(c2) ) { |
|
gcdn(NM(c1),NM(c2),&gn); |
|
if ( !UNIN(gn) ) { |
|
divsn(NM(c1),gn,&tn); NTOQ(tn,SGN(c1),c); c1 = c; |
|
divsn(NM(c2),gn,&tn); NTOQ(tn,SGN(c2),c); c2 = c; |
|
} |
|
} |
|
|
|
NEWMP(m); m->dl = d; m->c = (P)c2; NEXT(m) = 0; |
|
MKDP(n,m,s1); s1->sugar = d->td; muld(CO,s1,p1,&t); |
|
|
|
NEWDL(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
NEWMP(m); m->dl = d; m->c = (P)c1; NEXT(m) = 0; |
|
MKDP(n,m,s2); s2->sugar = d->td; muld(CO,s2,p2,&u); |
|
|
|
subd(CO,t,u,rp); |
|
if ( GenTrace ) { |
|
LIST hist; |
|
NODE node; |
|
|
|
node = mknode(4,ONE,0,s1,ONE); |
|
MKLIST(hist,node); |
|
MKNODE(TraceList,hist,0); |
|
|
|
node = mknode(4,ONE,0,0,ONE); |
|
chsgnd(s2,(DP *)&ARG2(node)); |
|
MKLIST(hist,node); |
|
MKNODE(node,hist,TraceList); TraceList = node; |
|
} |
|
} |
|
|
|
void dp_sp_mod(p1,p2,mod,rp) |
|
DP p1,p2; |
|
int mod; |
|
DP *rp; |
|
{ |
|
int i,n,td; |
|
int *w; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,u; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
w = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, td = 0; i < n; i++ ) { |
|
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
|
} |
|
NEWDL(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
NEWMP(m); m->dl = d; m->c = (P)BDY(p2)->c; NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,p1,s,&t); |
|
NEWDL(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
NEWMP(m); m->dl = d; m->c = (P)BDY(p1)->c; NEXT(m) = 0; |
|
MKDP(n,m,s); s->sugar = d->td; mulmd(CO,mod,p2,s,&u); |
|
submd(CO,mod,t,u,rp); |
|
} |
|
|
|
void dp_hm(p,rp) |
void dp_hm(p,rp) |
DP p; |
DP p; |
DP *rp; |
DP *rp; |
|
|
return 1; |
return 1; |
} |
} |
|
|
void dp_homo(p,rp) |
|
DP p; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
int i,n,nv,td; |
|
DL dl,dlh; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
n = p->nv; nv = n + 1; |
|
m = BDY(p); td = sugard(m); |
|
for ( mr0 = 0; m; m = NEXT(m) ) { |
|
NEXTMP(mr0,mr); mr->c = m->c; |
|
dl = m->dl; |
|
mr->dl = dlh = (DL)MALLOC_ATOMIC((nv+1)*sizeof(int)); |
|
dlh->td = td; |
|
for ( i = 0; i < n; i++ ) |
|
dlh->d[i] = dl->d[i]; |
|
dlh->d[n] = td - dl->td; |
|
} |
|
NEXT(mr) = 0; MKDP(nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} |
|
} |
|
|
|
void dp_dehomo(p,rp) |
|
DP p; |
|
DP *rp; |
|
{ |
|
MP m,mr,mr0; |
|
int i,n,nv; |
|
DL dl,dlh; |
|
|
|
if ( !p ) |
|
*rp = 0; |
|
else { |
|
n = p->nv; nv = n - 1; |
|
m = BDY(p); |
|
for ( mr0 = 0; m; m = NEXT(m) ) { |
|
NEXTMP(mr0,mr); mr->c = m->c; |
|
dlh = m->dl; |
|
mr->dl = dl = (DL)MALLOC_ATOMIC((nv+1)*sizeof(int)); |
|
dl->td = dlh->td - dlh->d[nv]; |
|
for ( i = 0; i < nv; i++ ) |
|
dl->d[i] = dlh->d[i]; |
|
} |
|
NEXT(mr) = 0; MKDP(nv,mr0,*rp); (*rp)->sugar = p->sugar; |
|
} |
|
} |
|
|
|
int dp_nt(p) |
int dp_nt(p) |
DP p; |
DP p; |
{ |
{ |
|
|
} |
} |
} |
} |
|
|
void _dp_red_mod_destructive(p1,p2,mod,rp) |
int dp_homogeneous(p) |
DP p1,p2; |
DP p; |
int mod; |
|
DP *rp; |
|
{ |
{ |
int i,n; |
|
DL d1,d2,d; |
|
MP m; |
MP m; |
DP t,s; |
int d; |
int c,c1; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
if ( !p ) |
_NEWDL(d,n); d->td = d1->td - d2->td; |
return 1; |
for ( i = 0; i < n; i++ ) |
else { |
d->d[i] = d1->d[i]-d2->d[i]; |
m = BDY(p); |
c = invm(ITOS(BDY(p2)->c),mod); c1 = dmar(c,ITOS(BDY(p1)->c),0,mod); |
d = m->dl->td; |
_NEWMP(m); m->dl = d; m->c = STOI(mod-c1); NEXT(m) = 0; |
m = NEXT(m); |
_MKDP(n,m,s); s->sugar = d->td; |
for ( ; m; m = NEXT(m) ) { |
_mulmd_dup(mod,s,p2,&t); _free_dp(s); |
if ( m->dl->td != d ) |
_addmd_destructive(mod,p1,t,rp); |
return 0; |
} |
} |
|
return 1; |
void _dp_sp_mod_dup(p1,p2,mod,rp) |
|
DP p1,p2; |
|
int mod; |
|
DP *rp; |
|
{ |
|
int i,n,td; |
|
int *w; |
|
DL d1,d2,d; |
|
MP m; |
|
DP t,s,u; |
|
|
|
n = p1->nv; d1 = BDY(p1)->dl; d2 = BDY(p2)->dl; |
|
w = (int *)ALLOCA(n*sizeof(int)); |
|
for ( i = 0, td = 0; i < n; i++ ) { |
|
w[i] = MAX(d1->d[i],d2->d[i]); td += w[i]; |
|
} |
} |
_NEWDL(d,n); d->td = td - d1->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d1->d[i]; |
|
_NEWMP(m); m->dl = d; m->c = BDY(p2)->c; NEXT(m) = 0; |
|
_MKDP(n,m,s); s->sugar = d->td; _mulmd_dup(mod,s,p1,&t); _free_dp(s); |
|
_NEWDL(d,n); d->td = td - d2->td; |
|
for ( i = 0; i < n; i++ ) |
|
d->d[i] = w[i] - d2->d[i]; |
|
_NEWMP(m); m->dl = d; m->c = STOI(mod - ITOS(BDY(p1)->c)); NEXT(m) = 0; |
|
_MKDP(n,m,s); s->sugar = d->td; _mulmd_dup(mod,s,p2,&u); _free_dp(s); |
|
_addmd_destructive(mod,t,u,rp); |
|
} |
} |
|
|
|
_print_mp(nv,m) |
void _dp_nf_mod_destructive(b,g,ps,mod,full,rp) |
int nv; |
NODE b; |
MP m; |
DP g; |
|
DP *ps; |
|
int mod,full; |
|
DP *rp; |
|
{ |
{ |
DP u,p,d,s,t; |
int i; |
NODE l; |
|
MP m,mr,mrd; |
|
int sugar,psugar,n,h_reducible,i; |
|
|
|
if ( !g ) { |
if ( !m ) |
*rp = 0; return; |
return; |
} |
for ( ; m; m = NEXT(m) ) { |
sugar = g->sugar; |
fprintf(stderr,"%d<",ITOS(C(m))); |
n = g->nv; |
for ( i = 0; i < nv; i++ ) { |
for ( d = 0; g; ) { |
fprintf(stderr,"%d",m->dl->d[i]); |
for ( h_reducible = 0, l = b; l; l = NEXT(l) ) { |
if ( i != nv-1 ) |
if ( dp_redble(g,p = ps[(int)BDY(l)]) ) { |
fprintf(stderr," "); |
h_reducible = 1; |
|
psugar = (BDY(g)->dl->td - BDY(p)->dl->td) + p->sugar; |
|
_dp_red_mod_destructive(g,p,mod,&u); g = u; |
|
sugar = MAX(sugar,psugar); |
|
if ( !g ) { |
|
if ( d ) |
|
d->sugar = sugar; |
|
_dptodp(d,rp); _free_dp(d); return; |
|
} |
|
break; |
|
} |
|
} |
} |
if ( !h_reducible ) { |
fprintf(stderr,">",C(m)); |
/* head term is not reducible */ |
|
if ( !full ) { |
|
if ( g ) |
|
g->sugar = sugar; |
|
_dptodp(g,rp); _free_dp(g); return; |
|
} else { |
|
m = BDY(g); |
|
if ( NEXT(m) ) { |
|
BDY(g) = NEXT(m); NEXT(m) = 0; |
|
} else { |
|
_FREEDP(g); g = 0; |
|
} |
|
if ( d ) { |
|
for ( mrd = BDY(d); NEXT(mrd); mrd = NEXT(mrd) ); |
|
NEXT(mrd) = m; |
|
} else { |
|
_MKDP(n,m,d); |
|
} |
|
} |
|
} |
|
} |
} |
if ( d ) |
fprintf(stderr,"\n"); |
d->sugar = sugar; |
|
_dptodp(d,rp); _free_dp(d); |
|
} |
} |