#include <exprLog.hpp>
Inheritance diagram for exprLog:
Public Member Functions | |
exprLog (expression *al) | |
Constructors, destructor. | |
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). | |
void | getBounds (CouNumber &lb, CouNumber &ub) |
Get value of lower and upper bound of an expression (if any). | |
void | generateCuts (expression *w, const OsiSolverInterface &si, OsiCuts &cs, const CouenneCutGenerator *cg, t_chg_bounds *=NULL, int=-1, CouNumber=-COUENNE_INFINITY, CouNumber=COUENNE_INFINITY) |
generate equality between *this and *w | |
virtual enum expr_type | code () |
code for comparisons | |
bool | impliedBound (int, CouNumber *, CouNumber *, t_chg_bounds *) |
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 feasible | |
virtual CouNumber | inverse (expression *vardep) const |
inverse of this operator | |
virtual bool | isCuttable (CouenneProblem *problem, int index) const |
can this expression be further linearized or are we on its concave ("bad") side |
Definition at line 20 of file exprLog.hpp.
exprLog::exprLog | ( | expression * | al | ) | [inline] |
expression* exprLog::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
cloning method
Reimplemented from expression.
Definition at line 29 of file exprLog.hpp.
References exprUnary::argument_, and exprLog().
unary_function exprLog::F | ( | ) | [inline, virtual] |
the operator's function
Reimplemented from exprUnary.
Definition at line 33 of file exprLog.hpp.
References log().
std::string exprLog::printOp | ( | ) | const [inline, virtual] |
CouNumber exprLog::gradientNorm | ( | const double * | x | ) | [virtual] |
expression* exprLog::differentiate | ( | int | index | ) | [virtual] |
void exprLog::getBounds | ( | expression *& | , | |
expression *& | ||||
) | [virtual] |
void exprLog::generateCuts | ( | expression * | w, | |
const OsiSolverInterface & | si, | |||
OsiCuts & | cs, | |||
const CouenneCutGenerator * | cg, | |||
t_chg_bounds * | = NULL , |
|||
int | = -1 , |
|||
CouNumber | = -COUENNE_INFINITY , |
|||
CouNumber | = COUENNE_INFINITY | |||
) | [virtual] |
virtual enum expr_type exprLog::code | ( | ) | [inline, virtual] |
code for comparisons
Reimplemented from exprUnary.
Definition at line 59 of file exprLog.hpp.
References COU_EXPRLOG.
bool exprLog::impliedBound | ( | int | , | |
CouNumber * | , | |||
CouNumber * | , | |||
t_chg_bounds * | ||||
) | [virtual] |
virtual CouNumber exprLog::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
Reimplemented from expression.
virtual bool exprLog::isBijective | ( | ) | const [inline, virtual] |
virtual CouNumber exprLog::inverse | ( | expression * | vardep | ) | const [inline, virtual] |
inverse of this operator
Reimplemented from expression.
Definition at line 79 of file exprLog.hpp.
References exp().
virtual bool exprLog::isCuttable | ( | CouenneProblem * | problem, | |
int | index | |||
) | const [virtual] |
can this expression be further linearized or are we on its concave ("bad") side
Reimplemented from expression.