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SeriesMPdcsevl Method

Evaluates the n-term Chebyshev series cs at x.

Namespace: Altaxo.Calc
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3448.0 (4.8.3448.0)
Syntax
C#
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public static double dcsevl(
	double x,
	double[] cs,
	int n
)

Parameters

x  Double
Value at which the series is to be evaluated.
cs  Double
Array of n terms of a Chebyshev series. In evaluating the series, only half the first coefficient is summed.
n  Int32
Number of terms in array cs.

Return Value

Double
The value of the n-term Chebyshev series cs at x.
Remarks
References: R. Broucke, Ten subroutines for the manipulation of Chebyshev series, Algorithm 446, Communications of the A.C.M. 16 (1973), pp. 254-256. L. Fox and I. B. Parker, Chebyshev Polynomials in Numerical Analysis, Oxford University Press, 1968, page 56. This is a translation from the Fortran version of SLATEC, FNLIB, CATEGORY C3A2, REVISION 920501, originally written by Fullerton W. (LANL) to C++.
See Also