Package org.hipparchus.analysis.differentiation

Class JacobianFunction

java.lang.Object

org.hipparchus.analysis.differentiation.JacobianFunction

All Implemented Interfaces:

MultivariateMatrixFunction

public class JacobianFunction
extends Object
implements MultivariateMatrixFunction

Class representing the Jacobian of a multivariate vector function.

The rows iterate on the model functions while the columns iterate on the parameters; thus, the numbers of rows is equal to the dimension of the underlying function vector value and the number of columns is equal to the number of free parameters of the underlying function.

Constructor Summary

Constructors

Constructor	Description
JacobianFunction(MultivariateDifferentiableVectorFunction f)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
double[][]	value(double[] point)	Compute the value for the function at the given point.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JacobianFunction

public JacobianFunction(MultivariateDifferentiableVectorFunction f)

Simple constructor.

Parameters:

f - underlying vector-valued function

Method Details

value

public double[][] value(double[] point)

Compute the value for the function at the given point.

Specified by:

value in interface MultivariateMatrixFunction

Parameters:

point - point at which the function must be evaluated

Returns:

function value for the given point