MassChangeAfterStepForCylinderEvaluateUnitStepAndDerivativesWrtReducedVariable Method

Evaluates the response of a unit step and its derivative with respect to the reduced variable.

Namespace: Altaxo.Calc.FitFunctions.Diffusion
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3448.0 (4.8.3448.0)

Syntax

public static (double functionValue, double derivativeWrtRv) EvaluateUnitStepAndDerivativesWrtReducedVariable(
	double rv
)

rv Double: Reduced variable rv = D*t/r², where D is the diffusion coefficient, t is the time and r is the radius of the cylinder.

ValueTupleDouble, Double
A tuple containing the function value and its derivative with respect to rv.