Represents a non-linear curve that is the sum of one or more exponential terms.

Namespace: Extreme.Mathematics.Curves.Nonlinear
Assembly: Extreme.Numerics (Extreme.Numerics)

Syntax

Visual Basic (Declaration)
Public Class ExponentialCurve _ Inherits NonlinearCurve

C#
public class ExponentialCurve : NonlinearCurve

C++
public ref class ExponentialCurve : public NonlinearCurve

Methods

Icon	Type	Description
	Clone()	Constructs an exact copy of this instance.
	Equals(Object)	Determines whether the specified Object is equal to the current Object.
	FillPartialDerivatives(Double, GeneralVector)	Fills a GeneralVector with the partial derivatives of the curve with respect to each of the curve parameters.
	Finalize()	Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.
	FindRoots()	Gets the set of X-coordinates where the curve crosses the X-axis.
	GetCurveFitter()	Returns a CurveFitter object that can be used to fit the curve to data.
	GetDerivative()	Returns a Curve that represents the derivative of this Curve.
	GetHashCode()	Serves as a hash function for a particular type.
	GetType()	Gets the Type of the current instance.
	Integral(Double, Double)	Gets the definite integral of the curve between the specified X-coordinates.
	MemberwiseClone()	Creates a shallow copy of the current Object.
	OnParameterChanged(Int32, Double)	Called after a Curve parameter has been changed.
	OnParameterChanging(Int32, Double)	Called before the value of a curve parameter is changed.
	SetInitialValues(Vector, Vector)	Sets the curve parameters to initial values based on the specified data.
	SlopeAt(Double)	Gets the slope of the curve at the specified X-coordinate.
	TangentAt(Double)	Gets the tangent Line to the curve at the specified X-coordinate.
	ToString()	Returns a String that represents the current Object.
	ValueAt(Double)	Gets the Y-value of the curve at the specified X-coordinate.

Constructors

Icon	Type	Description
	ExponentialCurveNew(Int32)	Constructs a new exponential curve with the specified number of terms.
	ExponentialCurveNew()	Constructs a new exponential curve with one term.

Properties

Icon	Type	Description
	Parameters	Gets the collection of parameters that determine the shape of this Curve.

Remarks

Use the ExponentialCurve class to represent an exponential curve that can be used in non-linear least squares fitting. Each term in the sum is of the form a*Math.Exp(-b*x).

This type of curve is sometimes called a multi-exponential curve. For details on how to fit a curve of this type, see the NonlinearCurveFitter class.

Inheritance Hierarchy

System.Object
  Extreme.Mathematics.Curves.Curve
    Extreme.Mathematics.Curves.NonlinearCurve
      Extreme.Mathematics.Curves.Nonlinear.ExponentialCurve