Open CASCADE Technology 6.6.0
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This class describes any variable of an expression.
Assignment is treated directly in this class.
#include <Expr_NamedUnknown.hxx>
Public Member Functions | |
Expr_NamedUnknown (const TCollection_AsciiString &name) | |
Standard_Boolean | IsAssigned () const |
Tests if an expression is assigned to <me>. | |
const Handle_Expr_GeneralExpression & | AssignedExpression () const |
If exists, returns the assigned expression. An exception is raised if the expression does not exist. | |
void | Assign (const Handle< Expr_GeneralExpression > &exp) |
Assigns <me> to <exp> expression. Raises exception if <exp> refers to <me>. | |
void | Deassign () |
Supresses the assigned expression | |
Standard_Integer | NbSubExpressions () const |
Returns the number of sub-expressions contained in <me> ( >= 0) | |
const Handle_Expr_GeneralExpression & | SubExpression (const Standard_Integer I) const |
Returns the -th sub-expression of <me> raises OutOfRange if > NbSubExpressions(me) | |
Handle_Expr_GeneralExpression | Simplified () const |
Returns a GeneralExpression after replacement of NamedUnknowns by an associated expression and after values computation. | |
Handle_Expr_GeneralExpression | ShallowSimplified () const |
Returns a GeneralExpression after a simplification of the arguments of <me>. | |
Handle_Expr_GeneralExpression | Copy () const |
Returns a copy of <me> having the same unknowns and functions. | |
Standard_Boolean | ContainsUnknowns () const |
Tests if <me> contains NamedUnknown. | |
Standard_Boolean | Contains (const Handle< Expr_GeneralExpression > &exp) const |
Tests if <exp> is contained in <me>. | |
Standard_Boolean | IsLinear () const |
Tests if <me> is linear on every NamedUnknown it contains. | |
Handle_Expr_GeneralExpression | Derivative (const Handle< Expr_NamedUnknown > &X) const |
Returns the derivative on <X> unknown of <me> | |
void | Replace (const Handle< Expr_NamedUnknown > &var, const Handle< Expr_GeneralExpression > &with) |
Replaces all occurences of with <with> in <me> Raises InvalidOperand if <with> contains <me>. | |
Standard_Real | Evaluate (const Expr_Array1OfNamedUnknown &vars, const TColStd_Array1OfReal &vals) const |
Returns the value of <me> (as a Real) by replacement of <vars> by <vals>. Raises NotEvaluable if <me> contains NamedUnknown not in <vars> or NumericError if result cannot be computed. |
Expr_NamedUnknown::Expr_NamedUnknown | ( | const TCollection_AsciiString & | name | ) |
void Expr_NamedUnknown::Assign | ( | const Handle< Expr_GeneralExpression > & | exp | ) |
const Handle_Expr_GeneralExpression& Expr_NamedUnknown::AssignedExpression | ( | ) | const |
Standard_Boolean Expr_NamedUnknown::Contains | ( | const Handle< Expr_GeneralExpression > & | exp | ) | const [virtual] |
Implements Expr_GeneralExpression.
Standard_Boolean Expr_NamedUnknown::ContainsUnknowns | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
Handle_Expr_GeneralExpression Expr_NamedUnknown::Copy | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
void Expr_NamedUnknown::Deassign | ( | ) |
Handle_Expr_GeneralExpression Expr_NamedUnknown::Derivative | ( | const Handle< Expr_NamedUnknown > & | X | ) | const [virtual] |
Implements Expr_GeneralExpression.
Standard_Real Expr_NamedUnknown::Evaluate | ( | const Expr_Array1OfNamedUnknown & | vars, |
const TColStd_Array1OfReal & | vals | ||
) | const [virtual] |
Implements Expr_GeneralExpression.
Standard_Boolean Expr_NamedUnknown::IsAssigned | ( | ) | const |
Standard_Boolean Expr_NamedUnknown::IsLinear | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
Standard_Integer Expr_NamedUnknown::NbSubExpressions | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
void Expr_NamedUnknown::Replace | ( | const Handle< Expr_NamedUnknown > & | var, |
const Handle< Expr_GeneralExpression > & | with | ||
) | [virtual] |
Implements Expr_GeneralExpression.
Handle_Expr_GeneralExpression Expr_NamedUnknown::ShallowSimplified | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
Handle_Expr_GeneralExpression Expr_NamedUnknown::Simplified | ( | ) | const [virtual] |
Implements Expr_GeneralExpression.
const Handle_Expr_GeneralExpression& Expr_NamedUnknown::SubExpression | ( | const Standard_Integer | I | ) | const [virtual] |
Implements Expr_GeneralExpression.