DekkerBrentSolver.FindZero Method

Finds a zero of a function starting from an initial guess.

Definition

Namespace: Numerics.NET.EquationSolvers
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.0.0

public static double FindZero(
	Func<double, double> function,
	double lowerBound,
	double upperBound,
	double tolerance = 1.49011611938477E-08,
	int maxIterations = 200,
	double rightHandSide = 0
)

Visual Basic

Public Shared Function FindZero ( 
	function As Func(Of Double, Double),
	lowerBound As Double,
	upperBound As Double,
	Optional tolerance As Double = 1.49011611938477E-08,
	Optional maxIterations As Integer = 200,
	Optional rightHandSide As Double = 0
) As Double

C++/CLI

public:
static double FindZero(
	Func<double, double>^ function, 
	double lowerBound, 
	double upperBound, 
	double tolerance = 1.49011611938477E-08, 
	int maxIterations = 200, 
	double rightHandSide = 0
)

static member FindZero : 
        function : Func<float, float> * 
        lowerBound : float * 
        upperBound : float * 
        ?tolerance : float * 
        ?maxIterations : int * 
        ?rightHandSide : float 
(* Defaults:
        let _tolerance = defaultArg tolerance 1.49011611938477E-08
        let _maxIterations = defaultArg maxIterations 200
        let _rightHandSide = defaultArg rightHandSide 0
*)
-> float

Parameters

function Func<Double, Double>: A function of one variable that specifies the function on the left-hand side of the equation.
lowerBound Double: The lower bound of the interval that contains the root.
upperBound Double: The upper bound of the interval that contains the root.
tolerance Double (Optional)
maxIterations Int32 (Optional)
rightHandSide Double (Optional)

Return Value

Double
The best approximation to a zero of function.

Remarks

Use this method when you have very little information about the location of the zero.

Exceptions

ConvergenceException

The algorithm failed to converge to a solution.