BettiDisplay Class Reference

Engine-side Betti table: a (degree, homological level) rectangle of integers. More...

#include <betti.hpp>

Public Member Functions
	BettiDisplay ()
	BettiDisplay (int lodegree, int hidegree, int hilen)
	BettiDisplay (const BettiDisplay &B)
BettiDisplay &	operator= (const BettiDisplay &B)
	~BettiDisplay ()
void	swap (BettiDisplay &B)
int &	entry (int deg, int lev)
M2_arrayint	getBetti () const
void	displayBetti (buffer &o) const
void	output () const
void	resize (int new_lo_degree, int new_hi_degree, int new_length)
int	loDegree () const
int	hiDegree () const
int	length () const

Static Private Member Functions
static M2_arrayint	betti_make (int lo, int hi, int len, int *bettis)
static void	betti_display (buffer &o, M2_arrayint ar)

Private Attributes
int	mLoDegree
int	mHiDegree
int	mHiLength
int	mNLevels
int *	mValues

Detailed Description

Engine-side Betti table: a (degree, homological level) rectangle of integers.

Note

AI-generated documentation. Verify against the source before relying on it.

Storage is a single flat int* mValues of size (mHiDegree - mLoDegree + 1) * mNLevels, indexed via entry(deg, lev). The user-facing bounds (loDegree / hiDegree / length) are the requested dimensions; the actual non-zero region may be tighter. displayBetti / output print in the conventional triangular layout the front end shows for betti queries, and getBetti flattens to an M2_arrayint for the interpreter.

Definition at line 59 of file betti.hpp.

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The documentation for this class was generated from the following files:

• Macaulay2/e/betti.hpp
• Macaulay2/e/betti.cpp