class for the exponential,
More...
#include <CouenneExprExp.hpp>
Public Member Functions | |
exprExp (expression *al) | |
Constructor. | |
expression * | clone (Domain *d=NULL) const |
Cloning method. | |
unary_function | F () |
The operator's function. | |
std::string | printOp () const |
Print operator. | |
CouNumber | gradientNorm (const double *x) |
return l-2 norm of gradient at given point | |
expression * | differentiate (int index) |
Differentiation. | |
void | getBounds (expression *&, expression *&) |
Get lower and upper bound of an expression (if any). | |
virtual void | getBounds (CouNumber &lb, CouNumber &ub) |
Get expression of lower and upper bound of an expression (if any). | |
void | generateCuts (expression *w, OsiCuts &cs, const CouenneCutGenerator *cg, t_chg_bounds *=NULL, int=-1, CouNumber=-COUENNE_INFINITY, CouNumber=COUENNE_INFINITY) |
Generate convexification cuts for this expression. | |
virtual enum expr_type | code () |
Code for comparisons. | |
bool | impliedBound (int, CouNumber *, CouNumber *, t_chg_bounds *, enum auxSign=expression::AUX_EQ) |
Implied bound processing. | |
virtual CouNumber | selectBranch (const CouenneObject *obj, const OsiBranchingInformation *info, expression *&var, double *&brpts, double *&brDist, int &way) |
Set up branching object by evaluating many branching points for each expression's arguments. | |
virtual bool | isBijective () const |
return true if bijective | |
virtual CouNumber | inverse (expression *vardep) const |
inverse of exponential | |
virtual bool | isCuttable (CouenneProblem *problem, int index) const |
can this expression be further linearized or are we on its concave ("bad") side |
class for the exponential,
Definition at line 22 of file CouenneExprExp.hpp.
Couenne::exprExp::exprExp | ( | expression * | al | ) | [inline] |
expression* Couenne::exprExp::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
Cloning method.
Reimplemented from Couenne::expression.
Definition at line 31 of file CouenneExprExp.hpp.
References Couenne::exprUnary::argument_, and exprExp().
unary_function Couenne::exprExp::F | ( | ) | [inline, virtual] |
The operator's function.
Reimplemented from Couenne::exprUnary.
Definition at line 35 of file CouenneExprExp.hpp.
References Couenne::exp().
std::string Couenne::exprExp::printOp | ( | ) | const [inline, virtual] |
Print operator.
Reimplemented from Couenne::exprUnary.
Definition at line 38 of file CouenneExprExp.hpp.
CouNumber Couenne::exprExp::gradientNorm | ( | const double * | x | ) | [inline, virtual] |
return l-2 norm of gradient at given point
Reimplemented from Couenne::expression.
Definition at line 42 of file CouenneExprExp.hpp.
References Couenne::exprUnary::argument_, Couenne::exp(), and Couenne::expression::Index().
expression* Couenne::exprExp::differentiate | ( | int | index | ) | [virtual] |
Differentiation.
Reimplemented from Couenne::expression.
void Couenne::exprExp::getBounds | ( | expression *& | , | |
expression *& | ||||
) |
Get lower and upper bound of an expression (if any).
Get expression of lower and upper bound of an expression (if any).
Reimplemented from Couenne::expression.
void Couenne::exprExp::generateCuts | ( | expression * | w, | |
OsiCuts & | cs, | |||
const CouenneCutGenerator * | cg, | |||
t_chg_bounds * | = NULL , |
|||
int | = -1 , |
|||
CouNumber | = -COUENNE_INFINITY , |
|||
CouNumber | = COUENNE_INFINITY | |||
) |
Generate convexification cuts for this expression.
virtual enum expr_type Couenne::exprExp::code | ( | ) | [inline, virtual] |
Code for comparisons.
Reimplemented from Couenne::exprUnary.
Definition at line 62 of file CouenneExprExp.hpp.
References Couenne::COU_EXPREXP.
bool Couenne::exprExp::impliedBound | ( | int | , | |
CouNumber * | , | |||
CouNumber * | , | |||
t_chg_bounds * | , | |||
enum | auxSign = expression::AUX_EQ | |||
) | [virtual] |
Implied bound processing.
Reimplemented from Couenne::expression.
virtual CouNumber Couenne::exprExp::selectBranch | ( | const CouenneObject * | obj, | |
const OsiBranchingInformation * | info, | |||
expression *& | var, | |||
double *& | brpts, | |||
double *& | brDist, | |||
int & | way | |||
) | [virtual] |
Set up branching object by evaluating many branching points for each expression's arguments.
virtual bool Couenne::exprExp::isBijective | ( | ) | const [inline, virtual] |
return true if bijective
Reimplemented from Couenne::expression.
Definition at line 78 of file CouenneExprExp.hpp.
virtual CouNumber Couenne::exprExp::inverse | ( | expression * | vardep | ) | const [inline, virtual] |
virtual bool Couenne::exprExp::isCuttable | ( | CouenneProblem * | problem, | |
int | index | |||
) | const [virtual] |
can this expression be further linearized or are we on its concave ("bad") side
Reimplemented from Couenne::expression.