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TabulatedFunction Class

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

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4
Syntax
public abstract class TabulatedFunction : OneVariableFunction

The TabulatedFunction type exposes the following members.

Constructors
 NameDescription
Protected methodTabulatedFunction Default constructor. Constructs a TabulatedFunction instance with no x and y values.
Protected methodTabulatedFunction(DoubleVector, DoubleVector) Constructs an instance of TabulatedFunction for the given paired vectors of x- and y-values.
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Properties
 NameDescription
Public propertyDifferentiator Gets and sets the differentiation method object associated with this function.
(Inherited from OneVariableFunction)
Public propertyFunc Gets the function encapsulated by this object.
(Inherited from OneVariableFunction)
Public propertyIntegrator Gets and sets the integration method object associated with this function.
(Inherited from OneVariableFunction)
Public propertyNumberOfTabulatedValues Gets the number of tabulated values.
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Methods
 NameDescription
Public methodClone Creates a deep copy of this function.
(Inherited from OneVariableFunction)
Public methodDerivative Returns the first derivative of this function.
(Inherited from OneVariableFunction)
Public methodDifferentiate Computes the numerical derivative of the current function at the given x-value.
(Inherited from OneVariableFunction)
Public methodEvaluate(Double) Evaluates the current function at the given x-value.
(Inherited from OneVariableFunction)
Public methodEvaluate(DoubleVector) Evaluates the current function at the given set of x-values.
(Inherited from OneVariableFunction)
Public methodEvaluate(OneVariableFunction) Creates a composite function.
(Inherited from OneVariableFunction)
Public methodGetX Returns the value of the tabulated independent values at the specified index.
Public methodGetXs Gets the x, or independent, values represented by this function.
Public methodGetXVector Gets the x, or independent, values represented by this function.
Public methodGetY Returns the value of the tabulated dependent values at the specified index.
Public methodGetYs Gets the y, or dependent, values represented by this function.
Public methodGetYVector Gets the y, or dependent, values represented by this function.
Public methodIntegrate Computes the integral of the current function over the specified interval.
(Inherited from OneVariableFunction)
Protected methodProcessTabulatedValues ProcessTabulatedValues is called anytime there is a change to the tabulated values.
Public methodSetTabulatedValues(DoubleVector, DoubleVector) Changes the values of the tabulated function.
Public methodSetTabulatedValues(Int32, Double, Double) Set the values of the tabulated point at the specified index to the specified value.
Public methodSetTabulatedValues(Range, DoubleVector, DoubleVector) Sets the the tabulated point values in the specifed range to the specified values.
Public methodSetX(Int32, Double) Sets the value of the independent tabulated value at the specified index to the specified value.
Public methodSetX(Range, DoubleVector) Sets the the tabulated independent values in the specifed range to the specified values.
Public methodSetY(Int32, Double) Sets the value of the dependent tabulated value at the specified index to the specified value.
Public methodSetY(Range, DoubleVector) Sets the the tabulated dependent values in the specifed range to the specified values.
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Fields
 NameDescription
Protected fielddifferentiator_Differentiator
(Inherited from OneVariableFunction)
Protected fieldfunction_ Captured function
(Inherited from OneVariableFunction)
Protected fieldintegrator_Integrator
(Inherited from OneVariableFunction)
Protected fieldxi_ Tabulated independent function values.
Protected fieldyi_ 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.
See Also