version 1.11, 2002/01/09 07:45:40 |
version 1.17, 2003/01/04 09:06:16 |
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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/fctr.c,v 1.10 2001/11/19 00:57:10 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/fctr.c,v 1.16 2002/10/31 03:59:50 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "parse.h" |
#include "parse.h" |
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void Pfctr(), Pgcd(), Pgcdz(), Plcm(), Psqfr(), Pufctrhint(); |
void Pfctr(), Pgcd(), Pgcdz(), Plcm(), Psqfr(), Pufctrhint(); |
void Pptozp(), Pcont(); |
void Pptozp(), Pcont(), Psfcont(); |
void Pafctr(), Pagcd(); |
void Pafctr(), Pagcd(); |
void Pmodsqfr(),Pmodfctr(),Pddd(),Pnewddd(),Pddd_tab(); |
void Pmodsqfr(),Pmodfctr(),Pddd(),Pnewddd(),Pddd_tab(); |
void Psfsqfr(),Psfbfctr(),Psfufctr(),Psfmintdeg(); |
void Psfsqfr(),Psffctr(),Psfbfctr(),Psfufctr(),Psfmintdeg(),Psfgcd(); |
void Pirred_check(), Pnfctr_mod(); |
void Pirred_check(), Pnfctr_mod(); |
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void Pbivariate_hensel_special(); |
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void sfmintdeg(VL vl,P fx,int dy,int c,P *fr); |
void sfmintdeg(VL vl,P fx,int dy,int c,P *fr); |
void create_bmono(P c,V x,int i,V y,int j,P *mono); |
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struct ftab fctr_tab[] = { |
struct ftab fctr_tab[] = { |
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{"bivariate_hensel_special",Pbivariate_hensel_special,6}, |
{"fctr",Pfctr,-2}, |
{"fctr",Pfctr,-2}, |
{"gcd",Pgcd,-3}, |
{"gcd",Pgcd,-3}, |
{"gcdz",Pgcdz,2}, |
{"gcdz",Pgcdz,2}, |
Line 69 struct ftab fctr_tab[] = { |
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Line 70 struct ftab fctr_tab[] = { |
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{"ufctrhint",Pufctrhint,2}, |
{"ufctrhint",Pufctrhint,2}, |
{"ptozp",Pptozp,1}, |
{"ptozp",Pptozp,1}, |
{"cont",Pcont,-2}, |
{"cont",Pcont,-2}, |
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{"sfcont",Psfcont,-2}, |
{"afctr",Pafctr,2}, |
{"afctr",Pafctr,2}, |
{"agcd",Pagcd,3}, |
{"agcd",Pagcd,3}, |
{"modsqfr",Pmodsqfr,2}, |
{"modsqfr",Pmodsqfr,2}, |
{"modfctr",Pmodfctr,2}, |
{"modfctr",Pmodfctr,2}, |
{"sfsqfr",Psfsqfr,1}, |
{"sfsqfr",Psfsqfr,1}, |
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{"sffctr",Psffctr,1}, |
{"sfufctr",Psfufctr,1}, |
{"sfufctr",Psfufctr,1}, |
{"sfbfctr",Psfbfctr,-4}, |
{"sfbfctr",Psfbfctr,-4}, |
{"sfmintdeg",Psfmintdeg,5}, |
{"sfmintdeg",Psfmintdeg,5}, |
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{"sfgcd",Psfgcd,2}, |
#if 0 |
#if 0 |
{"ddd",Pddd,2}, |
{"ddd",Pddd,2}, |
{"newddd",Pnewddd,2}, |
{"newddd",Pnewddd,2}, |
Line 87 struct ftab fctr_tab[] = { |
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Line 91 struct ftab fctr_tab[] = { |
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{0,0,0}, |
{0,0,0}, |
}; |
}; |
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/* bivariate_hensel_special(f(x,y):monic in x,g0(x),h0(y),x,y,d) */ |
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void Pbivariate_hensel_special(arg,rp) |
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NODE arg; |
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LIST *rp; |
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{ |
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DCP dc; |
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struct oVN vn[2]; |
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P f,g0,h0,ak,bk,gk,hk; |
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V vx,vy; |
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VL nvl; |
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Q qk,cbd,bb; |
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int d; |
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NODE n; |
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f = (P)ARG0(arg); |
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g0 = (P)ARG1(arg); |
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h0 = (P)ARG2(arg); |
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vx = VR((P)ARG3(arg)); |
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vy = VR((P)ARG4(arg)); |
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d = QTOS((Q)ARG5(arg)); |
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NEWVL(nvl); nvl->v = vx; |
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NEWVL(NEXT(nvl)); NEXT(nvl)->v = vy; |
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NEXT(NEXT(nvl)) = 0; |
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vn[0].v = vy; vn[0].n = 0; |
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vn[1].v = 0; vn[1].n = 0; |
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cbound(nvl,f,&cbd); |
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addq(cbd,cbd,&bb); |
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henzq1(g0,h0,bb,&bk,&ak,&qk); |
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henmv(nvl,vn,f,g0,h0,ak,bk,(P)ONE,(P)ONE,(P)ONE,(P)ONE,qk,d,&gk,&hk); |
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n = mknode(2,gk,hk); |
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MKLIST(*rp,n); |
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} |
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void Pfctr(arg,rp) |
void Pfctr(arg,rp) |
NODE arg; |
NODE arg; |
LIST *rp; |
LIST *rp; |
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} |
} |
} |
} |
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void Psfcont(arg,rp) |
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NODE arg; |
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P *rp; |
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{ |
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DCP dc; |
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int m; |
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P p,p1; |
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P *l; |
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V v; |
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asir_assert(ARG0(arg),O_P,"sfcont"); |
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p = (P)ARG0(arg); |
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if ( NUM(p) ) |
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*rp = p; |
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else { |
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if ( argc(arg) == 2 ) { |
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v = VR((P)ARG1(arg)); |
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change_mvar(CO,p,v,&p1); |
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if ( VR(p1) != v ) { |
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*rp = p1; return; |
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} else |
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p = p1; |
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} |
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for ( m = 0, dc = DC(p); dc; dc = NEXT(dc), m++ ); |
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l = (P *)ALLOCA(m*sizeof(P)); |
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for ( m = 0, dc = DC(p); dc; dc = NEXT(dc), m++ ) |
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l[m] = COEF(dc); |
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gcdsf(CO,l,m,rp); |
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} |
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} |
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void Pptozp(arg,rp) |
void Pptozp(arg,rp) |
NODE arg; |
NODE arg; |
P *rp; |
P *rp; |
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dcptolist(dc,rp); |
dcptolist(dc,rp); |
} |
} |
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void Psfgcd(arg,rp) |
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NODE arg; |
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LIST *rp; |
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{ |
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P ps[2]; |
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ps[0] = (P)ARG0(arg); |
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ps[1] = (P)ARG1(arg); |
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gcdsf(CO,ps,2,rp); |
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} |
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void Psffctr(arg,rp) |
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NODE arg; |
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LIST *rp; |
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{ |
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DCP dc; |
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mfctrsf(CO,ARG0(arg),&dc); |
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dcptolist(dc,rp); |
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} |
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void Psfsqfr(arg,rp) |
void Psfsqfr(arg,rp) |
NODE arg; |
NODE arg; |
LIST *rp; |
LIST *rp; |
{ |
{ |
DCP dc; |
DCP dc; |
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sfsqfr(ARG0(arg),&dc); |
sqfrsf(CO,ARG0(arg),&dc); |
dcptolist(dc,rp); |
dcptolist(dc,rp); |
} |
} |
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{ |
{ |
DCP dc; |
DCP dc; |
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fctrsf(ARG0(arg),&dc); |
ufctrsf(ARG0(arg),&dc); |
dcptolist(dc,rp); |
dcptolist(dc,rp); |
} |
} |
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for ( i = 0; i < n; i++ ) |
for ( i = 0; i < n; i++ ) |
umtop(v,r[i],(P *)&BDY(result)[i]); |
umtop(v,r[i],(P *)&BDY(result)[i]); |
*rp = result; |
*rp = result; |
} |
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struct lb { |
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int pos,len; |
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int *r; |
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int *hist; |
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}; |
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static NODE insert_lb(NODE g,struct lb *a) |
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{ |
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NODE prev,cur,n; |
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prev = 0; cur = g; |
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while ( cur ) { |
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if ( a->pos < ((struct lb *)BDY(cur))->pos ) { |
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MKNODE(n,a,cur); |
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if ( !prev ) |
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return n; |
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else { |
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NEXT(prev) = n; |
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return g; |
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} |
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} else { |
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prev = cur; |
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cur = NEXT(cur); |
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} |
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} |
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MKNODE(n,a,0); |
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NEXT(prev) = n; |
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return g; |
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} |
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static void lnf(int *r,int *h,int n,int len,NODE g) |
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{ |
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struct lb *t; |
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int pos,i,j,len1,c; |
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int *r1,*h1; |
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for ( ; g; g = NEXT(g) ) { |
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t = (struct lb *)BDY(g); |
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pos = t->pos; |
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if ( c = r[pos] ) { |
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r1 = t->r; |
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h1 = t->hist; |
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len1 = t->len; |
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for ( i = pos; i < n; i++ ) |
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r[i] = _subsf(r[i],_mulsf(r1[i],c)); |
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for ( i = 0; i < len1; i++ ) |
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h[i] = _subsf(h[i],_mulsf(h1[i],c)); |
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} |
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} |
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for ( i = 0; i < n && !r[i]; i++ ); |
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if ( i < n ) { |
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c = _invsf(r[i]); |
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for ( j = i; j < n; j++ ) |
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r[j] = _mulsf(r[j],c); |
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for ( j = i; j < len; j++ ) |
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h[j] = _mulsf(h[j],c); |
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} |
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} |
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void print_vect(int *r,int len) |
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{ |
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int i; |
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for ( i = 0; i < len; i++ ) |
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if ( r[i] ) printf("(%d %d)",i,IFTOF(r[i])); |
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printf("\n"); |
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} |
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void sfmintdeg(VL vl,P fx,int dy,int c,P *fr) |
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{ |
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V x,y; |
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int dx,dxdy,i,j,k,l,d,len,len0,u,dyk; |
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UP *rx; |
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DCP dc; |
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P t,f,mono,f1; |
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UP ut,h; |
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int ***nf; |
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int *r,*hist,*prev,*r1; |
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struct lb *lb; |
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GFS s; |
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NODE g; |
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x = vl->v; |
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y = NEXT(vl)->v; |
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dx = getdeg(x,fx); |
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dxdy = dx*dy; |
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/* rx = -(fx-x^dx) */ |
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rx = (UP *)CALLOC(dx,sizeof(UP)); |
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for ( dc = DC(fx); dc; dc = NEXT(dc)) { |
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chsgnp(COEF(dc),&t); |
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ptoup(t,&ut); |
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rx[QTOS(DEG(dc))] = ut; |
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} |
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/* nf[d] = normal form table of monomials with total degree d */ |
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nf = (int ***)CALLOC(dx+dy+1,sizeof(int **)); /* xxx */ |
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nf[0] = (int **)CALLOC(1,sizeof(int *)); |
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/* nf[0][0] = 1 */ |
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r = (int *)CALLOC(dxdy,sizeof(int)); |
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r[0] = _onesf(); |
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nf[0][0] = r; |
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hist = (int *)CALLOC(1,sizeof(int)); |
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r[0] = _onesf(); |
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lb = (struct lb *)CALLOC(1,sizeof(struct lb)); |
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lb->pos = 0; |
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lb->r = r; |
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lb->hist = hist; |
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lb->len = 1; |
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/* g : table of normal form as linear form */ |
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MKNODE(g,lb,0); |
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len = 1; |
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h = UPALLOC(dy); |
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for ( d = 1; ; d++ ) { |
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if ( d > c ){ |
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return; |
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} |
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nf[d] = (int **)CALLOC(d+1,sizeof(int *)); |
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len0 = len; |
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len += d+1; |
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for ( i = d; i >= 0; i-- ) { |
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/* nf(x^(d-i)*y^i) = nf(y*nf(x^(d-i)*y^(i-1))) */ |
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/* nf(x^d) = nf(nf(x^(d-1))*x) */ |
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r = (int *)CALLOC(dxdy,sizeof(int)); |
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if ( i == 0 ) { |
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prev = nf[d-1][0]; |
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bcopy(prev,r+dy,(dxdy-dy)*sizeof(int)); |
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/* create the head coeff */ |
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for ( l = 0, k = dxdy-dy; l < dy; l++, k++ ) { |
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if ( prev[k] ) { |
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u = IFTOF(prev[k]); |
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MKGFS(u,s); |
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} else |
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s = 0; |
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COEF(h)[l] = (Num)s; |
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} |
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for ( l = dy-1; l >= 0 && !COEF(h)[l]; l--); |
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DEG(h) = l; |
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for ( k = 0, dyk = 0; k < dx; k++, dyk += dy ) { |
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tmulup(rx[k],h,dy,&ut); |
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if ( ut ) |
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for ( l = 0; l < dy; l++ ) { |
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s = (GFS)COEF(ut)[l]; |
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if ( s ) { |
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u = CONT(s); |
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r[dyk+l] = _addsf(r[dyk+l],FTOIF(u)); |
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} |
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} |
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} |
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} else { |
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prev = nf[d-1][i-1]; |
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for ( k = 0, dyk = 0; k < dx; k++, dyk += dy ) { |
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for ( l = 1; l < dy; l++ ) |
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r[dyk+l] = prev[dyk+l-1]; |
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} |
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} |
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nf[d][i] = r; |
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hist = (int *)CALLOC(len,sizeof(int)); |
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hist[len0+i] = _onesf(); |
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r1 = (int *)CALLOC(dxdy,sizeof(int)); |
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bcopy(r,r1,dxdy*sizeof(int)); |
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lnf(r1,hist,dxdy,len,g); |
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for ( k = 0; k < dxdy && !r1[k]; k++ ); |
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if ( k == dxdy ) { |
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f = 0; |
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for ( k = j = 0; k <= d; k++ ) |
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for ( i = 0; i <= k; i++, j++ ) |
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if ( hist[j] ) { |
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u = IFTOF(hist[j]); |
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MKGFS(u,s); |
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/* mono = s*x^(k-i)*y^i */ |
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create_bmono((P)s,x,k-i,y,i,&mono); |
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addp(vl,f,mono,&f1); |
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f = f1; |
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} |
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*fr = f; |
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return; |
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} else { |
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lb = (struct lb *)CALLOC(1,sizeof(struct lb)); |
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lb->pos = k; |
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lb->r = r1; |
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lb->hist = hist; |
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lb->len = len; |
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g = insert_lb(g,lb); |
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} |
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} |
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} |
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} |
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void create_bmono(P c,V x,int i,V y,int j,P *mono) |
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{ |
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P t,s; |
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if ( !i ) |
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if ( !j ) |
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t = c; |
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else { |
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/* c*y^j */ |
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MKV(y,t); |
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COEF(DC(t)) = c; |
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STOQ(j,DEG(DC(t))); |
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} |
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else if ( !j ) { |
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/* c*x^i */ |
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MKV(x,t); |
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COEF(DC(t)) = c; |
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STOQ(i,DEG(DC(t))); |
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} else { |
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MKV(y,s); |
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COEF(DC(s)) = c; |
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STOQ(j,DEG(DC(s))); |
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MKV(x,t); |
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COEF(DC(t)) = s; |
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STOQ(i,DEG(DC(t))); |
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} |
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*mono = t; |
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} |
} |