TabulatedFunction Class

Class TabulatedFunction is an abstract class representing a function determined by tabulated values.

Inheritance Hierarchy

SystemObject
  CenterSpace.NMath.CoreOneVariableFunction
    CenterSpace.NMath.CoreTabulatedFunction
      CenterSpace.NMath.CoreCubicSpline
      CenterSpace.NMath.CoreLinearSpline
      CenterSpace.NMath.CoreSmoothCubicSpline

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

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public abstract class TabulatedFunction : OneVariableFunction

Public MustInherit Class TabulatedFunction
	Inherits OneVariableFunction

public ref class TabulatedFunction abstract : public OneVariableFunction

[<AbstractClassAttribute>]
type TabulatedFunction = 
    class
        inherit OneVariableFunction
    end

The TabulatedFunction type exposes the following members.

Constructors

	Name	Description
	TabulatedFunction	Default constructor. Constructs a TabulatedFunction instance with no x and y values.
	TabulatedFunction(DoubleVector, DoubleVector)	Constructs an instance of TabulatedFunction for the given paired vectors of x- and y-values.

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Properties

	Name	Description
	Differentiator	Gets and sets the differentiation method object associated with this function. (Inherited from OneVariableFunction)
	Func	Gets the function encapsulated by this object. (Inherited from OneVariableFunction)
	Integrator	Gets and sets the integration method object associated with this function. (Inherited from OneVariableFunction)
	NumberOfTabulatedValues	Gets the number of tabulated values.

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Methods

	Name	Description
	Clone	Creates a deep copy of this function. (Inherited from OneVariableFunction)
	Derivative	Returns the first derivative of this function. (Inherited from OneVariableFunction)
	Differentiate	Computes the numerical derivative of the current function at the given x-value. (Inherited from OneVariableFunction)
	Evaluate(Double)	Evaluates the current function at the given x-value. (Inherited from OneVariableFunction)
	Evaluate(DoubleVector)	Evaluates the current function at the given set of x-values. (Inherited from OneVariableFunction)
	Evaluate(OneVariableFunction)	Creates a composite function. (Inherited from OneVariableFunction)
	GetX	Returns the value of the tabulated independent values at the specified index.
	GetXs	Gets the x, or independent, values represented by this function.
	GetXVector	Gets the x, or independent, values represented by this function.
	GetY	Returns the value of the tabulated dependent values at the specified index.
	GetYs	Gets the y, or dependent, values represented by this function.
	GetYVector	Gets the y, or dependent, values represented by this function.
	Integrate	Computes the integral of the current function over the specified interval. (Inherited from OneVariableFunction)
	ProcessTabulatedValues	ProcessTabulatedValues is called anytime there is a change to the tabulated values.
	SetTabulatedValues(DoubleVector, DoubleVector)	Changes the values of the tabulated function.
	SetTabulatedValues(Int32, Double, Double)	Set the values of the tabulated point at the specified index to the specified value.
	SetTabulatedValues(Range, DoubleVector, DoubleVector)	Sets the the tabulated point values in the specifed range to the specified values.
	SetX(Int32, Double)	Sets the value of the independent tabulated value at the specified index to the specified value.
	SetX(Range, DoubleVector)	Sets the the tabulated independent values in the specifed range to the specified values.
	SetY(Int32, Double)	Sets the value of the dependent tabulated value at the specified index to the specified value.
	SetY(Range, DoubleVector)	Sets the the tabulated dependent values in the specifed range to the specified values.

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Fields

	Name	Description
	differentiator_	Differentiator (Inherited from OneVariableFunction)
	function_	Captured function (Inherited from OneVariableFunction)
	integrator_	Integrator (Inherited from OneVariableFunction)
	xi_	Tabulated independent function values.
	yi_	Tabulated dependent function values.

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Remarks

The TabulatedFunction base class manages the vectors of x and y that specify the tabulated values of the independent and dependent variables, respectively.
Deriving classes must specify a delegate function of type Func<double, double> for the instance variable function_ in the base class OneVariableFunction. This delegate computes and returns values for arbitrary x based on the tabulated values. In addition, deriving classes may override the virtual method ProcessTabulatedValues. This method is invoked by TabulatedFunction instances whenever the tabulated values are changed.

Reference

CenterSpace.NMath.Core Namespace