org.apache.commons.math3.analysis (Apache Commons Math 3.6.1 API)

Interface Summary
Interface	Description
BivariateFunction	An interface representing a bivariate real function.
DifferentiableMultivariateFunction	Deprecated as of 3.1 replaced by `MultivariateDifferentiableFunction`
DifferentiableMultivariateVectorFunction	Deprecated as of 3.1 replaced by `MultivariateDifferentiableVectorFunction`
DifferentiableUnivariateFunction	Deprecated as of 3.1 replaced by `UnivariateDifferentiableFunction`
DifferentiableUnivariateMatrixFunction	Deprecated as of 3.1 replaced by `UnivariateDifferentiableMatrixFunction`
DifferentiableUnivariateVectorFunction	Deprecated as of 3.1 replaced by `UnivariateDifferentiableVectorFunction`
MultivariateFunction	An interface representing a multivariate real function.
MultivariateMatrixFunction	An interface representing a multivariate matrix function.
MultivariateVectorFunction	An interface representing a multivariate vectorial function.
ParametricUnivariateFunction	An interface representing a real function that depends on one independent variable plus some extra parameters.
RealFieldUnivariateFunction<T extends RealFieldElement<T>>	An interface representing a univariate real function.
TrivariateFunction	An interface representing a trivariate real function.
UnivariateFunction	An interface representing a univariate real function.
UnivariateMatrixFunction	An interface representing a univariate matrix function.
UnivariateVectorFunction	An interface representing a univariate vectorial function.

Class Summary
Class Description

FunctionUtils
Utilities for manipulating function objects.

Class Summary
Class	Description
FunctionUtils	Utilities for manipulating function objects.

Package org.apache.commons.math3.analysis Description

Parent package for common numerical analysis procedures, including root finding, function interpolation and integration. Note that optimization (i.e. minimization and maximization) is a separate top-level package.

Function interfaces are intended to be implemented by user code to represent domain problems. The algorithms provided by the library operate on these functions to find their roots, or integrate them, or ... Functions can be multivariate or univariate, real vectorial or matrix-valued, and they can be differentiable or not.