Erf (Apache Commons Numbers Gamma 1.0 API)

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

```
public final class Erf
extends Object
```
Error function.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`value(double x)`	This implementation computes erf(x) using the `regularized gamma function`, following Erf, equation (3)

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

- Method Detail
  - value
```
public static double value(double x)
```
    This implementation computes erf(x) using the regularized gamma function, following Erf, equation (3)
    
    The returned value is always between -1 and 1 (inclusive). If abs(x) > 40, then Erf.value(x) is indistinguishable from either 1 or -1 at double precision, so the appropriate extreme value is returned.
    
    Parameters:
    
    x - the value.
    
    Returns:
    
    the error function.
    
    Throws:
    
    ArithmeticException - if the algorithm fails to converge.
    
    See Also:
    
    RegularizedGamma.P.value(double, double, double, int)