11#ifndef COUENNE_EXPRCOS_HPP
12#define COUENNE_EXPRCOS_HPP
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...
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
expression * differentiate(int index)
obtain derivative of expression
virtual enum expr_type code()
code for comparisons
bool impliedBound(int index, CouNumber *l, CouNumber *u, t_chg_bounds *chg, 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.
void getBounds(expression *&, expression *&)
Get lower and upper bound of an expression (if any)
expression * clone(Domain *d=NULL) const
cloning method
unary_function F()
the operator itself (e.g. sin, log...)
virtual void closestFeasible(expression *varind, expression *vardep, CouNumber &left, CouNumber &right) const
closest feasible points in function in both directions
exprCos(expression *al)
constructor, destructor
virtual bool isCuttable(CouenneProblem *problem, int index) const
can this expression be further linearized or are we on its concave ("bad") side
std::string printOp() const
print operator
void getBounds(CouNumber &lb, CouNumber &ub)
Get value of lower and upper bound of an expression.
CouNumber gradientNorm(const double *x)
return l-2 norm of gradient at given point
expression class for unary functions (sin, log, etc.)
virtual bool isInteger()
is this expression integer?
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
CouExpr & cos(CouExpr &e)
double CouNumber
main number type in Couenne
CouNumber trigNewton(CouNumber, CouNumber, CouNumber)
common convexification method used by both cos and sin
CouNumber(* unary_function)(CouNumber)
unary function, used in all exprUnary
CouExpr & sin(CouExpr &e)
bool trigImpliedBound(enum cou_trig, int, int, CouNumber *, CouNumber *, t_chg_bounds *)
generalized implied bound procedure for sine/cosine
expr_type
code returned by the method expression::code()
CouNumber trigSelBranch(const CouenneObject *obj, const OsiBranchingInformation *info, expression *&var, double *&brpts, double *&brDist, int &way, enum cou_trig type)
generalized procedure for both sine and cosine