ParametricRealFunction (Commons Math 2.2 API)

All Known Implementing Classes:

ParametricGaussianFunction
```
public interface ParametricRealFunction
```
An interface representing a real function that depends on one independent variable plus some extra parameters.

Version:

$Revision: 1073158 $ $Date: 2011-02-21 22:46:52 +0100 (lun. 21 févr. 2011) $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double[]`	`gradient(double x, double[] parameters)`	Compute the gradient of the function with respect to its parameters.
`double`	`value(double x, double[] parameters)`	Compute the value of the function.

- Method Detail
  - value
```
double value(double x,
             double[] parameters)
      throws FunctionEvaluationException
```
    Compute the value of the function.
    
    Parameters:
    
    x - the point for which the function value should be computed
    
    parameters - function parameters
    
    Returns:
    
    the value
    
    Throws:
    
    FunctionEvaluationException - if the function evaluation fails
  - gradient
```
double[] gradient(double x,
                  double[] parameters)
           throws FunctionEvaluationException
```
    Compute the gradient of the function with respect to its parameters.
    
    Parameters:
    
    x - the point for which the function value should be computed
    
    parameters - function parameters
    
    Returns:
    
    the value
    
    Throws:
    
    FunctionEvaluationException - if the function evaluation fails