## Uses of Interface
org.apache.commons.math3.optim.nonlinear.scalar.gradient.Preconditioner

- Packages that use Preconditioner
  Package | Description
  --- | ---
  org.apache.commons.math3.optim.nonlinear.scalar.gradient | This package provides optimization algorithms that require derivatives.

- - ### Uses of Preconditioner in org.apache.commons.math3.optim.nonlinear.scalar.gradient

    Classes in org.apache.commons.math3.optim.nonlinear.scalar.gradient that implement Preconditioner
    Modifier and Type | Class and Description
    --- | ---
    `static class` | `NonLinearConjugateGradientOptimizer.IdentityPreconditioner` Default identity preconditioner.

    Constructors in org.apache.commons.math3.optim.nonlinear.scalar.gradient with parameters of type Preconditioner
    Constructor and Description
    `NonLinearConjugateGradientOptimizer(NonLinearConjugateGradientOptimizer.Formula updateFormula, ConvergenceChecker<PointValuePair> checker, double relativeTolerance, double absoluteTolerance, double initialBracketingRange, Preconditioner preconditioner)`
    `NonLinearConjugateGradientOptimizer(NonLinearConjugateGradientOptimizer.Formula updateFormula, ConvergenceChecker<PointValuePair> checker, UnivariateSolver lineSearchSolver, Preconditioner preconditioner)` Deprecated. as of 3.3. Please use `NonLinearConjugateGradientOptimizer.NonLinearConjugateGradientOptimizer(Formula,ConvergenceChecker,double,double,double,Preconditioner)` instead.

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