mpr_base.cc File Reference

#include "kernel/mod2.h"
#include "misc/mylimits.h"
#include "misc/options.h"
#include "misc/intvec.h"
#include "misc/sirandom.h"
#include "coeffs/numbers.h"
#include "coeffs/mpr_global.h"
#include "polys/matpol.h"
#include "polys/sparsmat.h"
#include "polys/clapsing.h"
#include "kernel/polys.h"
#include "kernel/ideals.h"
#include "mpr_base.h"
#include "mpr_numeric.h"
#include <cmath>

Go to the source code of this file.

Data Structures
class	resMatrixSparse
struct	setID
struct	onePointP
struct	entry
class	pointSet
class	convexHull
class	mayanPyramidAlg
class	resMatrixDense
struct	resVector

Macros
#define	MAXPOINTS   10000
#define	MAXINITELEMS   256
#define	LIFT_COOR   50000
#define	SCALEDOWN   100.0
#define	MINVDIST   0.0
#define	RVMULT   0.0001
#define	MAXRVVAL   50000
#define	MAXVARS   100
#define	MAXEVPOINT   1000000

Typedefs
typedef unsigned int	Coord_t

Functions
poly	monomAt (poly p, int i)
unsigned long	over (const unsigned long n, const unsigned long d)
ideal	loNewtonPolytope (const ideal id)

---

Data Structure Documentation

setID

struct setID

Definition at line 133 of file mpr_base.cc.

Data Fields
int	pnt
int	set

onePoint

struct onePoint

Definition at line 139 of file mpr_base.cc.

Data Fields
Coord_t *	point
setID	rc
struct onePoint *	rcPnt

_entry

struct _entry

Definition at line 149 of file mpr_base.cc.

Data Fields
int	col
struct _entry *	next
number	num

Macro Definition Documentation

LIFT_COOR

#define LIFT_COOR   50000

Definition at line 50 of file mpr_base.cc.

MAXEVPOINT

#define MAXEVPOINT   1000000

Definition at line 2652 of file mpr_base.cc.

MAXINITELEMS

#define MAXINITELEMS   256

Definition at line 49 of file mpr_base.cc.

MAXPOINTS

#define MAXPOINTS   10000

Definition at line 48 of file mpr_base.cc.

MAXRVVAL

#define MAXRVVAL   50000

Definition at line 54 of file mpr_base.cc.

MAXVARS

#define MAXVARS   100

Definition at line 55 of file mpr_base.cc.

MINVDIST

#define MINVDIST   0.0

Definition at line 52 of file mpr_base.cc.

RVMULT

#define RVMULT   0.0001

Definition at line 53 of file mpr_base.cc.

SCALEDOWN

#define SCALEDOWN   100.0

Definition at line 51 of file mpr_base.cc.

Typedef Documentation

Coord_t

typedef unsigned int Coord_t

Definition at line 131 of file mpr_base.cc.

Function Documentation

loNewtonPolytope()

ideal loNewtonPolytope

(

const ideal

id

)

Definition at line 3190 of file mpr_base.cc.

{
  simplex * LP;
  int i;
  int /*n,*/totverts,idelem;
  ideal idr;
 
  // n= (currRing->N);
  idelem= IDELEMS(id);  // should be n+1
 
  totverts = 0;
  for( i=0; i < idelem; i++) totverts += pLength( (id->m)[i] );
 
  LP = new simplex( idelem+totverts*2+5, totverts+5 ); // rows, cols
 
  // evaluate convex hull for supports of id
  convexHull chnp( LP );
  idr = chnp.newtonPolytopesI( id );
 
  delete LP;
 
  return idr;
}

monomAt()

poly monomAt	(	poly	p,
		int	i
	)

Definition at line 720 of file mpr_base.cc.

{
  assume( i > 0 );
  poly iter= p;
  for ( int j= 1; (j < i) && (iter!=NULL); j++ ) pIter(iter);
  return iter;
}

over()

unsigned long over	(	const unsigned long	n,
		const unsigned long	d
	)

Definition at line 2658 of file mpr_base.cc.

{ // (d+n)! / ( d! n! )
  mpz_t res;
  mpz_init(res);
  mpz_t m,md,mn;
  mpz_init(m);mpz_set_ui(m,1);
  mpz_init(md);mpz_set_ui(md,1);
  mpz_init(mn);mpz_set_ui(mn,1);
 
  mpz_fac_ui(m,n+d);
  mpz_fac_ui(md,d);
  mpz_fac_ui(mn,n);
 
  mpz_mul(res,md,mn);
  mpz_tdiv_q(res,m,res);
 
  mpz_clear(m);mpz_clear(md);mpz_clear(mn);
 
  unsigned long result = mpz_get_ui(res);
  mpz_clear(res);
 
  return result;
}