IncompleteGammaFunction (OpenGamma Strata)

java.lang.Object
- com.opengamma.strata.math.impl.function.special.IncompleteGammaFunction

All Implemented Interfaces:

Function<Double,Double>
```
public class IncompleteGammaFunction
extends Object
implements Function<Double,Double>
```
The incomplete gamma function is defined as: $$ \begin{equation*} P(a, x) = \frac{\gamma(a, x)}{\Gamma(a)}\int_0^x e^{-t}t^{a-1}dt \end{equation*} $$ where $a > 0$.
This class is a wrapper for the Commons Math library implementation of the incomplete gamma function link

Constructor Summary

Constructors
Constructor	Description
`IncompleteGammaFunction(double a)`	Creates an instance.
`IncompleteGammaFunction(double a, int maxIter, double eps)`	Creates an instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

Double apply(Double x)
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
- Methods inherited from interface java.util.function.Function
  andThen, compose

- Constructor Detail
  - IncompleteGammaFunction
```
public IncompleteGammaFunction(double a)
```
    Creates an instance.
    
    Parameters:
    
    a - the value
  - IncompleteGammaFunction
```
public IncompleteGammaFunction(double a,
                               int maxIter,
                               double eps)
```
    Creates an instance.
    
    Parameters:
    
    a - the value
    
    maxIter - the maximum iterations
    
    eps - the epsilon
- Method Detail
  - apply
```
public Double apply(Double x)
```
    Specified by:
    
    apply in interface Function<Double,Double>