Bonmin 1.8.9
|
Stores a quadratic row of the form l < c + ax + x^T Q x < u. More...
#include <BonQuadRow.hpp>
Public Member Functions | |
QuadRow () | |
Default constructor. | |
QuadRow (const QuadRow &other) | |
Copy constructor. | |
QuadRow & | operator= (const QuadRow &rhs) |
Assignment operator. | |
QuadRow (const QuadCut &cut) | |
Constructor from a quadratic cut. | |
QuadRow & | operator= (const QuadCut &rhs) |
Assignment form a quadrattic &cut. | |
QuadRow (const OsiRowCut &cut) | |
Constructor from a linear cut. | |
QuadRow & | operator= (const OsiRowCut &rhs) |
Assignment form a linear &cut. | |
double | eval_f (const double *x, bool new_x) |
Evaluate quadratic form. | |
int | nnz_grad () |
Get number of non-zeroes in the gradiant. | |
void | gradiant_struct (const int nnz, int *indices, bool offset) |
Get structure of gradiant. | |
void | eval_grad (const int nnz, const double *x, bool new_x, double *values) |
Evaluate gradiant of quadratic form. | |
int | nnz_hessian () |
number of non-zeroes in hessian. | |
bool | isLinear () |
Says if the constraint is linear. | |
void | eval_hessian (double lambda, double *values) |
Return hessian value (i.e. | |
void | add_to_hessian (AdjustableMat &H, bool offset) |
Add row to a bigger hessian. | |
void | remove_from_hessian (AdjustableMat &H) |
Remove row from a bigger hessian. | |
void | print () |
Print quadratic constraint. | |
Stores a quadratic row of the form l < c + ax + x^T Q x < u.
Does computation usefull for nlp-solver. It can only be initialized from a QuadCut.
Definition at line 32 of file BonQuadRow.hpp.
Bonmin::QuadRow::QuadRow | ( | ) |
Default constructor.
Bonmin::QuadRow::QuadRow | ( | const QuadRow & | other | ) |
Copy constructor.
Bonmin::QuadRow::QuadRow | ( | const QuadCut & | cut | ) |
Constructor from a quadratic cut.
Bonmin::QuadRow::QuadRow | ( | const OsiRowCut & | cut | ) |
Constructor from a linear cut.
double Bonmin::QuadRow::eval_f | ( | const double * | x, |
bool | new_x ) |
Evaluate quadratic form.
int Bonmin::QuadRow::nnz_grad | ( | ) |
Get number of non-zeroes in the gradiant.
void Bonmin::QuadRow::gradiant_struct | ( | const int | nnz, |
int * | indices, | ||
bool | offset ) |
Get structure of gradiant.
void Bonmin::QuadRow::eval_grad | ( | const int | nnz, |
const double * | x, | ||
bool | new_x, | ||
double * | values ) |
Evaluate gradiant of quadratic form.
|
inline |
number of non-zeroes in hessian.
Definition at line 66 of file BonQuadRow.hpp.
|
inline |
Says if the constraint is linear.
Definition at line 70 of file BonQuadRow.hpp.
void Bonmin::QuadRow::eval_hessian | ( | double | lambda, |
double * | values ) |
Return hessian value (i.e.
Q_).
void Bonmin::QuadRow::add_to_hessian | ( | AdjustableMat & | H, |
bool | offset ) |
Add row to a bigger hessian.
void Bonmin::QuadRow::remove_from_hessian | ( | AdjustableMat & | H | ) |
Remove row from a bigger hessian.
void Bonmin::QuadRow::print | ( | ) |
Print quadratic constraint.