11#ifndef COUENNE_EXPREXP_HPP
12#define COUENNE_EXPREXP_HPP
83 return log((*vardep)());
Cut Generator for linear convexifications.
OsiObject for auxiliary variables $w=f(x)$.
Class for MINLP problems with symbolic information.
Define a dynamic point+bounds, with a way to save and restore previous points+bounds through a LIFO s...
class for the exponential,
expression * clone(Domain *d=NULL) const
Cloning method.
virtual bool isBijective() const
return true if bijective
virtual CouNumber inverse(expression *vardep) const
inverse of exponential
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.
CouNumber gradientNorm(const double *x)
return l-2 norm of gradient at given point
virtual bool isCuttable(CouenneProblem *problem, int index) const
can this expression be further linearized or are we on its concave ("bad") side
void getBounds(expression *&, expression *&)
Get lower and upper bound of an expression (if any)
exprExp(expression *al)
Constructor.
std::string printOp() const
Print operator.
bool impliedBound(int, CouNumber *, CouNumber *, t_chg_bounds *, enum auxSign=expression::AUX_EQ)
Implied bound processing.
expression * differentiate(int index)
Differentiation.
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.
unary_function F()
The operator's function.
virtual enum expr_type code()
Code for comparisons.
expression class for unary functions (sin, log, etc.)
expression * argument_
single argument taken by this expression
virtual int Index() const
Return index of variable (only valid for exprVar and exprAux)
auxSign
"sign" of the constraint defining an auxiliary.
status of lower/upper bound of a variable, to be checked/modified in bound tightening
general include file for different compilers
double CouNumber
main number type in Couenne
CouNumber(* unary_function)(CouNumber)
unary function, used in all exprUnary
expr_type
code returned by the method expression::code()
CouExpr & log(CouExpr &e)
CouExpr & exp(CouExpr &e)