MultivariableFunctionDifferentialSolver Class

An intermediate base class for MultivariableFunctionSolvers that will solve a function by iteration towards a solution. In each iteration, the change of the variable values will be evaluated, applied to the previous variable values and repeated in the next iteration. An instance of a type derived from this will pass in values of Variables into a SolvableMultivariableFunction to drive them to satisfy this solver's constraints.

Inheritance Hierarchy

SystemObject
  AGI.Foundation.NumericalMethodsMultivariableFunctionSolver
    AGI.Foundation.NumericalMethodsMultivariableFunctionDifferentialSolver
      AGI.Foundation.NumericalMethodsNewtonRaphsonMultivariableFunctionSolver

Namespace: AGI.Foundation.NumericalMethods
Assembly: AGI.Foundation.Core (in AGI.Foundation.Core.dll) Version: 24.3.420.0 (24.3.420.0)

Syntax

C++

Copy

public abstract class MultivariableFunctionDifferentialSolver : MultivariableFunctionSolver

Public MustInherit Class MultivariableFunctionDifferentialSolver
	Inherits MultivariableFunctionSolver

public ref class MultivariableFunctionDifferentialSolver abstract : public MultivariableFunctionSolver

[<AbstractClassAttribute>]
type MultivariableFunctionDifferentialSolver =  
    class
        inherit MultivariableFunctionSolver
    end

The MultivariableFunctionDifferentialSolver type exposes the following members.

Constructors

	Name	Description
	MultivariableFunctionDifferentialSolver	Initializes a new instance. You must add at least one variable to the Variables and one constraint to the Constraints, as well as set the Function.
	MultivariableFunctionDifferentialSolver(MultivariableFunctionDifferentialSolver, CopyContext)	Initializes a new instance as a copy of an existing instance.

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Properties

	Name	Description
	Constraints	Gets the constraint settings corresponding to the results computed by the Function. There must be at least one constraint set for this solver to work. (Inherited from MultivariableFunctionSolver.)
	CurrentIteration	Gets or sets the number of the current iteration. This should be incremented in the FindSolution(Int32, Boolean, ITrackCalculationProgress) method. (Inherited from MultivariableFunctionSolver.)
	Function	Gets or sets the function to solve. When the solver converges, this function must have been run with the variable values that converged. This behavior must be obeyed when Multithreaded is either or . (Inherited from MultivariableFunctionSolver.)
	IsThreadSafe	Gets a value indicating whether the methods on this instance are safe to call from multiple threads simultaneously. (Inherited from MultivariableFunctionSolver.)
	LastRunsResults	Gets or sets the results of the solver run. This includes such information as if the solver converged, all the iteration results (if configured to save them), if the run was aborted, etc. (Inherited from MultivariableFunctionSolver.)
	LineSearchSettings	Gets or sets an optional property that can be used to specify tolerances, convergence criteria, and maximum iterations for a line search that is used to find the optimal feasible step in the same direction as the computed step. The cost function that is minimized for the line search is the square root of the sum of the squares of the weighted and scaled constraint errors. GoldenSectionFindExtremum is used to find the minimum of the cost function along the direction of the computed step.
	Multithreaded	Gets or sets a value indicating whether this solver should evaluate with as many threads as the current threading policy facet and solver algorithm will allow. Note that derived types should copy this in their copy constructor. (Inherited from MultivariableFunctionSolver.)
	Variables	Gets the SolverVariableSettings that will be used when computing this function. The variables passed to the function will be in the same order as this list of settings. There must be at least one variable set for this solver to work. (Inherited from MultivariableFunctionSolver.)

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Methods

	Name	Description
	Clone	Clones this object using the specified context. (Inherited from MultivariableFunctionSolver.)
	ComputeNextStep	Computes the next differential step that this differential corrector should take.
	Dispose	Releases any resources associated with this instance. (Inherited from MultivariableFunctionSolver.)
	Dispose(Boolean)	Releases any resources associated with this instance. (Inherited from MultivariableFunctionSolver.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FindSolution(Int32)	Solves the Function. By default, the results of every iteration will be stored. (Inherited from MultivariableFunctionSolver.)
	FindSolution(Int32, Boolean)	Solves the function. (Inherited from MultivariableFunctionSolver.)
	FindSolution(Int32, Boolean, ITrackCalculationProgress)	Solves the function. This method must increment CurrentIteration as well as set LastRunsResults before this method returns. (Overrides MultivariableFunctionSolverFindSolution(Int32, Boolean, ITrackCalculationProgress).)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Reset	Resets the MultivariableFunctionSolver by setting the LastRunsResults to and the CurrentIteration to zero. This method should be called in any derived version. (Inherited from MultivariableFunctionSolver.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Reference

AGI.Foundation.NumericalMethods Namespace