#include <exprInv.hpp>
Inheritance diagram for exprInv:


Public Member Functions | |
| exprInv (expression *al) | |
| Constructors, destructor. | |
| expression * | clone (Domain *d=NULL) const |
| cloning method | |
| unary_function | F () |
| the operator's function | |
| virtual void | print (std::ostream &out=std::cout, bool=false) const |
| output "1/argument" | |
| CouNumber | gradientNorm (const double *x) |
| return l-2 norm of gradient at given point | |
| expression * | differentiate (int index) |
| differentiation | |
| virtual int | Linearity () |
| get a measure of "how linear" the expression is (see CouenneTypes.h) | |
| 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, 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 bijective | |
| virtual CouNumber | inverse (expression *vardep) const |
| return inverse of y=f(x)=1/x, i.e., x=1/y | |
| 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 34 of file exprInv.hpp.
| exprInv::exprInv | ( | expression * | al | ) | [inline] |
Constructors, destructor.
Definition at line 39 of file exprInv.hpp.
Referenced by clone(), differentiate(), and getBounds().
| expression* exprInv::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
cloning method
Reimplemented from expression.
Definition at line 43 of file exprInv.hpp.
References exprUnary::argument_, and exprInv().
| unary_function exprInv::F | ( | ) | [inline, virtual] |
the operator's function
Reimplemented from exprUnary.
Definition at line 47 of file exprInv.hpp.
References inv().
| void exprInv::print | ( | std::ostream & | out = std::cout, |
|
| bool | = false | |||
| ) | const [virtual] |
output "1/argument"
Reimplemented from exprUnary.
Definition at line 31 of file exprInv.cpp.
References exprUnary::argument_.
| CouNumber exprInv::gradientNorm | ( | const double * | x | ) | [virtual] |
return l-2 norm of gradient at given point
Reimplemented from expression.
Definition at line 105 of file exprInv.cpp.
References exprUnary::argument_, and expression::Index().
| expression * exprInv::differentiate | ( | int | index | ) | [virtual] |
differentiation
Reimplemented from expression.
Definition at line 18 of file exprInv.cpp.
References exprUnary::argument_, and exprInv().
| virtual int exprInv::Linearity | ( | ) | [inline, virtual] |
get a measure of "how linear" the expression is (see CouenneTypes.h)
Reimplemented from exprUnary.
Definition at line 59 of file exprInv.hpp.
References exprUnary::argument_, CONST, CONSTANT, NONLINEAR, and exprUnary::Type().
| void exprInv::getBounds | ( | expression *& | , | |
| expression *& | ||||
| ) | [virtual] |
Get lower and upper bound of an expression (if any).
Reimplemented from expression.
Definition at line 29 of file conv-exprInv.cpp.
References exprUnary::argument_, COUENNE_INFINITY, and exprInv().
Referenced by generateCuts(), and getBounds().
Get value of lower and upper bound of an expression (if any).
Reimplemented from expression.
Definition at line 51 of file conv-exprInv.cpp.
References exprUnary::argument_, COUENNE_INFINITY, and getBounds().
| void exprInv::generateCuts | ( | expression * | w, | |
| OsiCuts & | cs, | |||
| const CouenneCutGenerator * | cg, | |||
| t_chg_bounds * | = NULL, |
|||
| int | = -1, |
|||
| CouNumber | = -COUENNE_INFINITY, |
|||
| CouNumber | = COUENNE_INFINITY | |||
| ) | [virtual] |
generate equality between *this and *w
Reimplemented from expression.
Definition at line 71 of file conv-exprInv.cpp.
References exprUnary::argument_, COU_MAX_COEFF, COUENNE_EPS, COUENNE_INFINITY, getBounds(), expression::Index(), inv(), inv_dblprime(), MIN_DENOMINATOR, ns, oppInvSqr(), powNewton(), and t_chg_bounds::UNCHANGED.
| virtual enum expr_type exprInv::code | ( | ) | [inline, virtual] |
code for comparisons
Reimplemented from exprUnary.
Definition at line 78 of file exprInv.hpp.
References COU_EXPRINV.
| bool exprInv::impliedBound | ( | int | , | |
| CouNumber * | , | |||
| CouNumber * | , | |||
| t_chg_bounds * | ||||
| ) | [virtual] |
implied bound processing
Reimplemented from expression.
Definition at line 73 of file exprInv.cpp.
References exprUnary::argument_, t_chg_bounds::CHANGED, COUENNE_EPS, expression::Index(), invPowImplBounds(), exprUnary::isInteger(), t_chg_bounds::setLower(), and t_chg_bounds::setUpper().
| CouNumber exprInv::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.
Definition at line 227 of file branchExprInv.cpp.
References exprUnary::argument_, expression::Index(), and negPowSelectBranch().
| virtual bool exprInv::isBijective | ( | ) | const [inline, virtual] |
| virtual CouNumber exprInv::inverse | ( | expression * | vardep | ) | const [inline, virtual] |
return inverse of y=f(x)=1/x, i.e., x=1/y
Reimplemented from expression.
Definition at line 97 of file exprInv.hpp.
| bool exprInv::isCuttable | ( | CouenneProblem * | problem, | |
| int | index | |||
| ) | const [virtual] |
can this expression be further linearized or are we on its concave ("bad") side
Reimplemented from expression.
Definition at line 118 of file exprInv.cpp.
References exprUnary::argument_, expression::Index(), and x.
1.4.7