# Package org.apache.commons.math3.optim.nonlinear.scalar.gradient

This package provides optimization algorithms that require derivatives.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  Preconditioner | This interface represents a preconditioner for differentiable scalar objective function optimizers.

- Class Summary
  Class | Description
  --- | ---
  NonLinearConjugateGradientOptimizer | Non-linear conjugate gradient optimizer.
  NonLinearConjugateGradientOptimizer.BracketingStep | The initial step is a factor with respect to the search direction (which itself is roughly related to the gradient of the function).
  NonLinearConjugateGradientOptimizer.IdentityPreconditioner | Default identity preconditioner.

- Enum Summary
  Enum | Description
  --- | ---
  NonLinearConjugateGradientOptimizer.Formula | Available choices of update formulas for the updating the parameter that is used to compute the successive conjugate search directions.

## Package org.apache.commons.math3.optim.nonlinear.scalar.gradient Description

This package provides optimization algorithms that require derivatives.

Copyright (c) 2003-2013 Apache Software Foundation