class inverse:
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#include <CouenneExprInv.hpp>


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 *, 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 |
| 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 | |
class inverse:
Definition at line 35 of file CouenneExprInv.hpp.
| Couenne::exprInv::exprInv | ( | expression * | al | ) | [inline] |
Constructors, destructor.
Definition at line 40 of file CouenneExprInv.hpp.
| expression* Couenne::exprInv::clone | ( | Domain * | d = NULL |
) | const [inline, virtual] |
cloning method
Reimplemented from Couenne::expression.
Definition at line 44 of file CouenneExprInv.hpp.
| unary_function Couenne::exprInv::F | ( | ) | [inline, virtual] |
the operator's function
Reimplemented from Couenne::exprUnary.
Definition at line 48 of file CouenneExprInv.hpp.
| void exprInv::print | ( | std::ostream & | out = std::cout, |
|
| bool | descend = false | |||
| ) | const [virtual] |
output "1/argument"
Reimplemented from Couenne::exprUnary.
Definition at line 36 of file exprInv.cpp.
| CouNumber exprInv::gradientNorm | ( | const double * | x | ) | [virtual] |
return l-2 norm of gradient at given point
Reimplemented from Couenne::expression.
Definition at line 111 of file exprInv.cpp.
| expression * exprInv::differentiate | ( | int | index | ) | [virtual] |
| virtual int Couenne::exprInv::Linearity | ( | ) | [inline, virtual] |
get a measure of "how linear" the expression is (see CouenneTypes.h)
Reimplemented from Couenne::exprUnary.
Definition at line 60 of file CouenneExprInv.hpp.
| void exprInv::getBounds | ( | expression *& | lb, | |
| expression *& | ub | |||
| ) |
Get lower and upper bound of an expression (if any).
Definition at line 33 of file conv-exprInv.cpp.
Get value of lower and upper bound of an expression (if any).
Reimplemented from Couenne::expression.
Definition at line 55 of file conv-exprInv.cpp.
| void exprInv::generateCuts | ( | expression * | w, | |
| OsiCuts & | cs, | |||
| const CouenneCutGenerator * | cg, | |||
| t_chg_bounds * | chg = NULL, |
|||
| int | wind = -1, |
|||
| CouNumber | lbw = -COUENNE_INFINITY, |
|||
| CouNumber | ubw = COUENNE_INFINITY | |||
| ) |
generate equality between *this and *w
Definition at line 75 of file conv-exprInv.cpp.
| virtual enum expr_type Couenne::exprInv::code | ( | ) | [inline, virtual] |
code for comparisons
Reimplemented from Couenne::exprUnary.
Definition at line 79 of file CouenneExprInv.hpp.
| bool exprInv::impliedBound | ( | int | wind, | |
| CouNumber * | l, | |||
| CouNumber * | u, | |||
| t_chg_bounds * | chg, | |||
| enum auxSign | sign = expression::AUX_EQ | |||
| ) | [virtual] |
implied bound processing
implied bound processing for expression w = 1/x, upon change in lower- and/or upper bound of w, whose index is wind
Reimplemented from Couenne::expression.
Definition at line 79 of file exprInv.cpp.
| 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
Definition at line 229 of file branchExprInv.cpp.
| virtual bool Couenne::exprInv::isBijective | ( | ) | const [inline, virtual] |
return true if bijective
Reimplemented from Couenne::expression.
Definition at line 95 of file CouenneExprInv.hpp.
| virtual CouNumber Couenne::exprInv::inverse | ( | expression * | vardep | ) | const [inline, virtual] |
return inverse of y=f(x)=1/x, i.e., x=1/y
Definition at line 98 of file CouenneExprInv.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 Couenne::expression.
Definition at line 124 of file exprInv.cpp.
1.6.1