java.lang.Object
- org.apache.commons.numbers.gamma.InvGamma1pm1

```
final class InvGamma1pm1
extends java.lang.Object
```
Function \( \frac{1}{\Gamma(1 + x)} - 1 \). Class is immutable.

Field Summary

Fields
Modifier and Type	Field	Description
`private static double`	`INV_GAMMA1P_M1_A0`	The constant `A0` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_A1`	The constant `A1` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B1`	The constant `B1` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B2`	The constant `B2` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B3`	The constant `B3` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B4`	The constant `B4` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B5`	The constant `B5` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B6`	The constant `B6` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B7`	The constant `B7` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_B8`	The constant `B8` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C`	The constant `C` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C0`	The constant `C0` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C1`	The constant `C1` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C10`	The constant `C10` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C11`	The constant `C11` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C12`	The constant `C12` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C13`	The constant `C13` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C2`	The constant `C2` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C3`	The constant `C3` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C4`	The constant `C4` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C5`	The constant `C5` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C6`	The constant `C6` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C7`	The constant `C7` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C8`	The constant `C8` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_C9`	The constant `C9` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P0`	The constant `P0` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P1`	The constant `P1` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P2`	The constant `P2` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P3`	The constant `P3` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P4`	The constant `P4` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P5`	The constant `P5` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_P6`	The constant `P6` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_Q1`	The constant `Q1` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_Q2`	The constant `Q2` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_Q3`	The constant `Q3` defined in `DGAM1`.
`private static double`	`INV_GAMMA1P_M1_Q4`	The constant `Q4` defined in `DGAM1`.

Constructor Summary

Constructors
Modifier Constructor Description

private InvGamma1pm1()
Private constructor.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`value(double x)`	Computes the function \( \frac{1}{\Gamma(1 + x)} - 1 \) for `-0.5 <= x <= 1.5`.

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

- Field Detail
  - INV_GAMMA1P_M1_A0
```
private static final double INV_GAMMA1P_M1_A0
```
    The constant A0 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_A1
```
private static final double INV_GAMMA1P_M1_A1
```
    The constant A1 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B1
```
private static final double INV_GAMMA1P_M1_B1
```
    The constant B1 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B2
```
private static final double INV_GAMMA1P_M1_B2
```
    The constant B2 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B3
```
private static final double INV_GAMMA1P_M1_B3
```
    The constant B3 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B4
```
private static final double INV_GAMMA1P_M1_B4
```
    The constant B4 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B5
```
private static final double INV_GAMMA1P_M1_B5
```
    The constant B5 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B6
```
private static final double INV_GAMMA1P_M1_B6
```
    The constant B6 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B7
```
private static final double INV_GAMMA1P_M1_B7
```
    The constant B7 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_B8
```
private static final double INV_GAMMA1P_M1_B8
```
    The constant B8 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P0
```
private static final double INV_GAMMA1P_M1_P0
```
    The constant P0 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P1
```
private static final double INV_GAMMA1P_M1_P1
```
    The constant P1 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P2
```
private static final double INV_GAMMA1P_M1_P2
```
    The constant P2 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P3
```
private static final double INV_GAMMA1P_M1_P3
```
    The constant P3 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P4
```
private static final double INV_GAMMA1P_M1_P4
```
    The constant P4 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P5
```
private static final double INV_GAMMA1P_M1_P5
```
    The constant P5 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_P6
```
private static final double INV_GAMMA1P_M1_P6
```
    The constant P6 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_Q1
```
private static final double INV_GAMMA1P_M1_Q1
```
    The constant Q1 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_Q2
```
private static final double INV_GAMMA1P_M1_Q2
```
    The constant Q2 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_Q3
```
private static final double INV_GAMMA1P_M1_Q3
```
    The constant Q3 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_Q4
```
private static final double INV_GAMMA1P_M1_Q4
```
    The constant Q4 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C
```
private static final double INV_GAMMA1P_M1_C
```
    The constant C defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C0
```
private static final double INV_GAMMA1P_M1_C0
```
    The constant C0 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C1
```
private static final double INV_GAMMA1P_M1_C1
```
    The constant C1 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C2
```
private static final double INV_GAMMA1P_M1_C2
```
    The constant C2 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C3
```
private static final double INV_GAMMA1P_M1_C3
```
    The constant C3 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C4
```
private static final double INV_GAMMA1P_M1_C4
```
    The constant C4 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C5
```
private static final double INV_GAMMA1P_M1_C5
```
    The constant C5 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C6
```
private static final double INV_GAMMA1P_M1_C6
```
    The constant C6 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C7
```
private static final double INV_GAMMA1P_M1_C7
```
    The constant C7 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C8
```
private static final double INV_GAMMA1P_M1_C8
```
    The constant C8 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C9
```
private static final double INV_GAMMA1P_M1_C9
```
    The constant C9 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C10
```
private static final double INV_GAMMA1P_M1_C10
```
    The constant C10 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C11
```
private static final double INV_GAMMA1P_M1_C11
```
    The constant C11 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C12
```
private static final double INV_GAMMA1P_M1_C12
```
    The constant C12 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
  - INV_GAMMA1P_M1_C13
```
private static final double INV_GAMMA1P_M1_C13
```
    The constant C13 defined in DGAM1.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - InvGamma1pm1
```
private InvGamma1pm1()
```
    Private constructor.
- Method Detail
  - value
```
public static double value(double x)
```
    Computes the function \( \frac{1}{\Gamma(1 + x)} - 1 \) for -0.5 <= x <= 1.5. This implementation is based on the double precision implementation in the NSWC Library of Mathematics Subroutines, DGAM1.
    
    Parameters:
    
    x - Argument.
    
    Returns:
    
    \( \frac{1}{\Gamma(1 + x)} - 1 \)
    
    Throws:
    
    java.lang.IllegalArgumentException - if x < -0.5 or x > 1.5

Class InvGamma1pm1

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

INV_GAMMA1P_M1_A0

INV_GAMMA1P_M1_A1

INV_GAMMA1P_M1_B1

INV_GAMMA1P_M1_B2

INV_GAMMA1P_M1_B3

INV_GAMMA1P_M1_B4

INV_GAMMA1P_M1_B5

INV_GAMMA1P_M1_B6

INV_GAMMA1P_M1_B7

INV_GAMMA1P_M1_B8

INV_GAMMA1P_M1_P0

INV_GAMMA1P_M1_P1

INV_GAMMA1P_M1_P2

INV_GAMMA1P_M1_P3

INV_GAMMA1P_M1_P4

INV_GAMMA1P_M1_P5

INV_GAMMA1P_M1_P6

INV_GAMMA1P_M1_Q1

INV_GAMMA1P_M1_Q2

INV_GAMMA1P_M1_Q3

INV_GAMMA1P_M1_Q4

INV_GAMMA1P_M1_C

INV_GAMMA1P_M1_C0

INV_GAMMA1P_M1_C1

INV_GAMMA1P_M1_C2

INV_GAMMA1P_M1_C3

INV_GAMMA1P_M1_C4

INV_GAMMA1P_M1_C5

INV_GAMMA1P_M1_C6

INV_GAMMA1P_M1_C7

INV_GAMMA1P_M1_C8

INV_GAMMA1P_M1_C9

INV_GAMMA1P_M1_C10

INV_GAMMA1P_M1_C11

INV_GAMMA1P_M1_C12

INV_GAMMA1P_M1_C13

Constructor Detail

InvGamma1pm1

Method Detail

value