IntegralEvaluator (jreliability v2.0 API)

java.lang.Object
- org.jreliability.evaluator.IntegralEvaluator

```
public class IntegralEvaluator
extends java.lang.Object
```
The IntegralEvaluator determines the integral of a Function using Romberg's method.

Field Summary

Fields
Modifier and Type Field Description

protected double epsilon
The allowed error / epsilon for Romberg's method.

Constructor Summary

Constructors
Constructor	Description
`IntegralEvaluator()`	Constructs the `IntegralEvaluator` with the epsilon value `1.0E-8`.
`IntegralEvaluator(double epsilon)`	Constructs the `IntegralEvaluator`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`evaluate(Function f, double a, double b)`	Calculates the integral from `a` to `b`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - epsilon
```
protected final double epsilon
```
    The allowed error / epsilon for Romberg's method.
- Constructor Detail
  - IntegralEvaluator
```
public IntegralEvaluator()
```
    Constructs the IntegralEvaluator with the epsilon value 1.0E-8.
  - IntegralEvaluator
```
public IntegralEvaluator(double epsilon)
```
    Constructs the IntegralEvaluator.
    
    Parameters:
    
    epsilon - the allowed error for Romberg's method.
- Method Detail
  - evaluate
```
public double evaluate(Function f,
                       double a,
                       double b)
```
    Calculates the integral from a to b.
    
    Parameters:
    
    f - the function to be integrated
    
    a - the lower bound
    
    b - the upper bound
    
    Returns:
    
    the value of the integral from a to b