ChebyshevBasis.Item Property

public override Func<double, double> this[
	int index
] { get; }

Public Overrides ReadOnly Default Property Item ( 
	index As Integer
) As Func(Of Double, Double)
	Get

public:
virtual property Func<double, double>^ default[int index] {
	Func<double, double>^ get (int index) override;
}

abstract Item : Func<float, float> with get
override Item : Func<float, float> with get

Parameters

index  Int32

The index of the function.

Property Value

The function of one variable that is returned represents the Chebyshev polynomial of degree index over the interval specified in the ChebyshevBasis(Double, Double, Int32).

Note: The first function (the constant term) is equal to 0.5 instead of the value of 1 of the Chebyshev polynomial of degree 0. The reason is that Chebyshev series are commonly expressed with the constant term multiplied by 0.5. The ChebyshevSeries class follows this convention.

Reference