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Expr


Expr_NamedConstant Class Reference

Describes any numeric constant known by a special name
(as PI, e,...).
.

#include <Expr_NamedConstant.hxx>

Inheritance diagram for Expr_NamedConstant:

Inheritance graph
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Public Member Functions

Standard_EXPORT Expr_NamedConstant (const TCollection_AsciiString &name, const Standard_Real value)
 Creates a constant value of name <name> and value <value>.
.
Standard_Real GetValue () const
Standard_EXPORT Standard_Integer NbSubExpressions () const
 returns the number of sub-expressions contained
in <me> (always returns zero)

Standard_EXPORT const Handle_Expr_GeneralExpression & SubExpression (const Standard_Integer I) const
 returns the -th sub-expression of <me>
raises OutOfRange

Standard_EXPORT Handle_Expr_GeneralExpression Simplified () const
 returns a GeneralExpression after replacement of
NamedUnknowns by an associated expression and after
values computation.

Standard_EXPORT Handle_Expr_GeneralExpression ShallowSimplified () const
 Returns a GeneralExpression after a simplification
of the arguments of <me>.
.
Standard_EXPORT Handle_Expr_GeneralExpression Copy () const
 Returns a copy of <me> having the same unknowns and functions.
.
Standard_EXPORT Standard_Boolean ContainsUnknowns () const
 Tests if <me> contains NamedUnknown.
(returns always False)
.
Standard_EXPORT Standard_Boolean Contains (const Handle(Expr_GeneralExpression)&exp) const
 Tests if <exp> is contained in <me>.
.
Standard_EXPORT Standard_Boolean IsLinear () const
 Tests if <me> is linear on every NamedUnknown it
contains.
.
Standard_EXPORT Handle_Expr_GeneralExpression Derivative (const Handle(Expr_NamedUnknown)&X) const
 Returns the derivative on <x> unknown of <me>
.
virtual Standard_EXPORT Handle_Expr_GeneralExpression NDerivative (const Handle(Expr_NamedUnknown)&X, const Standard_Integer N) const
 Returns the <n>-th derivative on <x> unknown of <me>.
Raises OutOfRange if <n> <= 0
.
Standard_EXPORT void Replace (const Handle(Expr_NamedUnknown)&var, const Handle(Expr_GeneralExpression)&with)
 Replaces all occurences of with <with> in <me>
.

Standard_EXPORT 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>.
.
Standard_EXPORT const Handle (Standard_Type)&DynamicType() const

Private Attributes

Standard_Real myValue

Constructor & Destructor Documentation

Standard_EXPORT Expr_NamedConstant::Expr_NamedConstant const TCollection_AsciiString name,
const Standard_Real  value
 


Member Function Documentation

Standard_EXPORT Standard_Boolean Expr_NamedConstant::Contains const Handle(Expr_GeneralExpression)&  exp  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Boolean Expr_NamedConstant::ContainsUnknowns  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedConstant::Copy  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedConstant::Derivative const Handle(Expr_NamedUnknown)&  X  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Real Expr_NamedConstant::Evaluate const Expr_Array1OfNamedUnknown vars,
const TColStd_Array1OfReal vals
const [virtual]
 

Implements Expr_GeneralExpression.

Standard_Real Expr_NamedConstant::GetValue  )  const [inline]
 

Standard_EXPORT const Expr_NamedConstant::Handle Standard_Type   )  const
 

Reimplemented from Expr_NamedExpression.

Standard_EXPORT Standard_Boolean Expr_NamedConstant::IsLinear  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Standard_Integer Expr_NamedConstant::NbSubExpressions  )  const [virtual]
 

Implements Expr_GeneralExpression.

virtual Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedConstant::NDerivative const Handle(Expr_NamedUnknown)&  X,
const Standard_Integer  N
const [virtual]
 

Reimplemented from Expr_GeneralExpression.

Standard_EXPORT void Expr_NamedConstant::Replace const Handle(Expr_NamedUnknown)&  var,
const Handle(Expr_GeneralExpression)&  with
[virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedConstant::ShallowSimplified  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT Handle_Expr_GeneralExpression Expr_NamedConstant::Simplified  )  const [virtual]
 

Implements Expr_GeneralExpression.

Standard_EXPORT const Handle_Expr_GeneralExpression& Expr_NamedConstant::SubExpression const Standard_Integer  I  )  const [virtual]
 

Implements Expr_GeneralExpression.


Field Documentation

Standard_Real Expr_NamedConstant::myValue [private]
 


The documentation for this class was generated from the following files:
Generated on Mon Aug 25 13:12:28 2008 for OpenCASCADE by  doxygen 1.4.1