version 1.10, 2003/08/22 11:47:03 |
version 1.13, 2004/06/12 07:29:46 |
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/* $OpenXM: OpenXM/src/kan96xx/Kan/poly4.c,v 1.9 2003/08/21 12:28:58 takayama Exp $ */ |
/* $OpenXM: OpenXM/src/kan96xx/Kan/poly4.c,v 1.12 2003/08/24 05:19:42 takayama Exp $ */ |
#include <stdio.h> |
#include <stdio.h> |
#include "datatype.h" |
#include "datatype.h" |
#include "stackm.h" |
#include "stackm.h" |
Line 9 static void shell(int v[],int n); |
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Line 9 static void shell(int v[],int n); |
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static int degreeOfPrincipalPart(POLY f); |
static int degreeOfPrincipalPart(POLY f); |
static int degreeOfInitW(POLY f,int w[]); |
static int degreeOfInitW(POLY f,int w[]); |
static int degreeOfInitWS(POLY f,int w[],int s[]); |
static int degreeOfInitWS(POLY f,int w[],int s[]); |
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static int dDegree(POLY f); |
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static POLY dHomogenize(POLY f); |
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static void shell(v,n) |
static void shell(v,n) |
int v[]; |
int v[]; |
int n; |
int n; |
Line 306 POLY homogenize(f) |
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Line 307 POLY homogenize(f) |
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POLY t; |
POLY t; |
int maxg; |
int maxg; |
int flag,d; |
int flag,d; |
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extern int Homogenize; |
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if (f == ZERO) return(f); |
if (f == ZERO) return(f); |
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if (Homogenize == 3) { /* double homogenization Dx x = x Dx + h H */ |
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return dHomogenize(f); |
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} |
t = f; maxg = (*grade)(f); flag = 0; |
t = f; maxg = (*grade)(f); flag = 0; |
while (t != POLYNULL) { |
while (t != POLYNULL) { |
d = (*grade)(t); |
d = (*grade)(t); |
Line 375 int isHomogenized_vec(f) |
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Line 380 int isHomogenized_vec(f) |
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return(1); |
return(1); |
} |
} |
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static POLY dHomogenize(f) |
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POLY f; |
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{ |
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POLY t; |
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int maxg, maxdg; |
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int flag,d,dd,neg; |
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if (f == ZERO) return(f); |
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t = f; maxg = (*grade)(f); flag = 0; |
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maxdg = dDegree(f); |
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while (t != POLYNULL) { |
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d = (*grade)(t); |
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if (d != maxg) flag = 1; |
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if (d > maxg) { |
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maxg = d; |
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} |
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d = dDegree(f); |
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if (d > maxdg) { |
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maxdg = d; |
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} |
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t = t->next; |
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} |
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if (flag == 0) return(f); |
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t = f; neg = 0; |
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while (t != POLYNULL) { |
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d = (*grade)(t); |
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dd = dDegree(t); |
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if (maxg-d-(maxdg-dd) < neg) { |
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neg = maxg-d-(maxdg-dd); |
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} |
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t = t->next; |
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} |
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neg = -neg; |
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f = pmCopy(f); /* You can rewrite the monomial parts */ |
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t = f; |
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while (t != POLYNULL) { |
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d = (*grade)(t); |
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dd = dDegree(t); |
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t->m->e[0].D += maxdg-dd; /* h */ |
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t->m->e[0].x += maxg-d-(maxdg-dd)+neg; /* Multiply H */ |
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/* example Dx^2+Dx+x */ |
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t = t->next; |
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} |
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return(f); |
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} |
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static int degreeOfPrincipalPart(f) |
static int degreeOfPrincipalPart(f) |
POLY f; |
POLY f; |
{ |
{ |
Line 388 static int degreeOfPrincipalPart(f) |
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Line 440 static int degreeOfPrincipalPart(f) |
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} |
} |
return(dd); |
return(dd); |
} |
} |
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static int dDegree(f) |
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POLY f; |
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{ |
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int nn,i,dd,m; |
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if (f ISZERO) return(0); |
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nn = f->m->ringp->nn; dd = 0; |
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m = f->m->ringp->m; |
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for (i=m; i<nn; i++) { |
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dd += f->m->e[i].D; |
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} |
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return(dd); |
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} |
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POLY POLYToPrincipalPart(f) |
POLY POLYToPrincipalPart(f) |
POLY f; |
POLY f; |
Line 438 POLY POLYToInitW(f,w) |
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Line 503 POLY POLYToInitW(f,w) |
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POLY f; |
POLY f; |
int w[]; /* weight vector */ |
int w[]; /* weight vector */ |
{ |
{ |
POLY node; |
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struct listPoly nod; |
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POLY h; |
POLY h; |
POLY g; |
POLY g; |
int maxd; |
int maxd; |
int dd; |
int dd; |
node = &nod; node->next = POLYNULL; h = node; |
h = POLYNULL; |
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/*printf("1:%s\n",POLYToString(f,'*',1));*/ |
if (f ISZERO) return(f); |
if (f ISZERO) return(f); |
maxd = degreeOfInitW(f,w); |
maxd = degreeOfInitW(f,w); |
g = pCopy(f); /* shallow copy */ |
g = f; |
while (!(f ISZERO)) { |
while (!(f ISZERO)) { |
dd = degreeOfInitW(f,w); |
dd = degreeOfInitW(f,w); |
if (dd > maxd) maxd = dd; |
if (dd > maxd) maxd = dd; |
Line 457 POLY POLYToInitW(f,w) |
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Line 521 POLY POLYToInitW(f,w) |
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while (!(g ISZERO)) { |
while (!(g ISZERO)) { |
dd = degreeOfInitW(g,w); |
dd = degreeOfInitW(g,w); |
if (dd == maxd) { |
if (dd == maxd) { |
h->next = g; |
h = ppAdd(h,newCell(g->coeffp,g->m)); /* it might be slow. */ |
h = h->next; |
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} |
} |
g = g->next; |
g = g->next; |
} |
} |
h->next = POLYNULL; |
/*printf("2:%s\n",POLYToString(h,'*',1));*/ |
return(node->next); |
return(h); |
} |
} |
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static int degreeOfInitWS(f,w,s) |
static int degreeOfInitWS(f,w,s) |
Line 475 static int degreeOfInitWS(f,w,s) |
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Line 538 static int degreeOfInitWS(f,w,s) |
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if (f ISZERO) { |
if (f ISZERO) { |
errorPoly("degreeOfInitWS(0,w) "); |
errorPoly("degreeOfInitWS(0,w) "); |
} |
} |
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if (s == (int *) NULL) return degreeOfInitW(f,w); |
n = f->m->ringp->n; dd = 0; |
n = f->m->ringp->n; dd = 0; |
for (i=0; i<n-1; i++) { |
for (i=0; i<n-1; i++) { |
dd += (f->m->e[i].D)*w[n+i]; |
dd += (f->m->e[i].D)*w[n+i]; |
Line 489 POLY POLYToInitWS(f,w,s) |
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Line 553 POLY POLYToInitWS(f,w,s) |
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int w[]; /* weight vector */ |
int w[]; /* weight vector */ |
int s[]; /* shift vector */ |
int s[]; /* shift vector */ |
{ |
{ |
POLY node; |
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struct listPoly nod; |
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POLY h; |
POLY h; |
POLY g; |
POLY g; |
int maxd; |
int maxd; |
int dd; |
int dd; |
node = &nod; node->next = POLYNULL; h = node; |
h = POLYNULL; |
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/*printf("1s:%s\n",POLYToString(f,'*',1));*/ |
if (f ISZERO) return(f); |
if (f ISZERO) return(f); |
maxd = degreeOfInitWS(f,w,s); |
maxd = degreeOfInitWS(f,w,s); |
g = pCopy(f); /* shallow copy */ |
g = f; |
while (!(f ISZERO)) { |
while (!(f ISZERO)) { |
dd = degreeOfInitWS(f,w,s); |
dd = degreeOfInitWS(f,w,s); |
if (dd > maxd) maxd = dd; |
if (dd > maxd) maxd = dd; |
Line 508 POLY POLYToInitWS(f,w,s) |
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Line 571 POLY POLYToInitWS(f,w,s) |
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while (!(g ISZERO)) { |
while (!(g ISZERO)) { |
dd = degreeOfInitWS(g,w,s); |
dd = degreeOfInitWS(g,w,s); |
if (dd == maxd) { |
if (dd == maxd) { |
h->next = g; |
h = ppAdd(h,newCell(g->coeffp,g->m)); /* it might be slow. */ |
h = h->next; |
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} |
} |
g = g->next; |
g = g->next; |
} |
} |
h->next = POLYNULL; |
/*printf("2s:%s\n",POLYToString(h,'*',1));*/ |
return(node->next); |
return(h); |
} |
} |
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int ordWsAll(f,w,s) |
int ordWsAll(f,w,s) |
Line 629 POLY goDeHomogenizeS(POLY f) { |
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Line 691 POLY goDeHomogenizeS(POLY f) { |
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cp = f->coeffp; |
cp = f->coeffp; |
if (cp->tag == POLY_COEFF) { |
if (cp->tag == POLY_COEFF) { |
t = goDeHomogenizeS((cp->val).f); |
t = goDeHomogenizeS((cp->val).f); |
nc = newCell(polyToCoeff(t,f->m->ringp),f->m); |
nc = newCell(polyToCoeff(t,f->m->ringp),monomialCopy(f->m)); |
ans = ppAddv(ans,nc); |
ans = ppAddv(ans,nc); |
f = f->next; |
f = f->next; |
}else{ |
}else{ |
Line 703 POLY goHomogenize(POLY f,int u[],int v[],int ds[],int |
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Line 765 POLY goHomogenize(POLY f,int u[],int v[],int ds[],int |
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message = 1; |
message = 1; |
if (f == POLYNULL) return(POLYNULL); |
if (f == POLYNULL) return(POLYNULL); |
rp = f->m->ringp; |
rp = f->m->ringp; |
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/* |
if ((rp->degreeShiftSize == 0) && (dssize > 0)) { |
if ((rp->degreeShiftSize == 0) && (dssize > 0)) { |
warningPoly("You are trying to homogenize a polynomial with degree shift. However, the polynomial belongs to the ring without degreeShift option. It may cause a trouble in comparison in free module.\n"); |
warningPoly("You are trying to homogenize a polynomial with degree shift. However, the polynomial belongs to the ring without degreeShift option. It may cause a trouble in comparison in free module.\n"); |
} |
} |
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*/ |
node = &nod; |
node = &nod; |
node->next = POLYNULL; |
node->next = POLYNULL; |
lastf = POLYNULL; |
lastf = POLYNULL; |
Line 757 POLY goHomogenize(POLY f,int u[],int v[],int ds[],int |
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Line 821 POLY goHomogenize(POLY f,int u[],int v[],int ds[],int |
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h = node->next; |
h = node->next; |
/*go-debug printf("m=%d, mp=%d\n",m,mp); */ |
/*go-debug printf("m=%d, mp=%d\n",m,mp); */ |
while (h != POLYNULL) { |
while (h != POLYNULL) { |
/*go-debug printf("Old: h=%d, s=%d\n",h->m->e[0].D,h->m->e[0].x); */ |
/*go-debug printf("Old: h=%d, s=%d\n",h->m->e[0].D,h->m->e[0].x); */ |
if (!onlyS) h->m->e[0].D += m; /* h */ |
if (!onlyS) h->m->e[0].D += m; /* h */ |
h->m->e[0].x += -mp; /* H, s*/ |
h->m->e[0].x += -mp; /* H, s*/ |
/*go-debug printf("New: h=%d, s=%d\n",h->m->e[0].D,h->m->e[0].x); */ |
/*go-debug printf("New: h=%d, s=%d\n",h->m->e[0].D,h->m->e[0].x); */ |