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IntegrateDoubleExponential Method

Approximation of the definite integral of an analytic smooth function by double-exponential quadrature. When either or both limits are infinite, the integrand is assumed rapidly decayed to zero as x -> infinity.

Namespace: Altaxo.Calc
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
Copy
public static double DoubleExponential(
	Func<double, double> f,
	double intervalBegin,
	double intervalEnd,
	double targetAbsoluteError = 1E-08
)

Parameters

f  FuncDouble, Double
The analytic smooth function to integrate.
intervalBegin  Double
Where the interval starts.
intervalEnd  Double
Where the interval stops.
targetAbsoluteError  Double  (Optional)
The expected relative accuracy of the approximation.

Return Value

Double
Approximation of the finite integral in the given interval.
See Also