Atan (Apache Commons Math 4.0-beta1)

java.lang.Object
- org.apache.commons.math4.legacy.analysis.function.Atan

All Implemented Interfaces:

DoubleUnaryOperator, UnivariateDifferentiableFunction, UnivariateFunction
```
public class Atan
extends Object
implements UnivariateDifferentiableFunction
```
Arc-tangent function.

Since:

3.0

Constructor Summary

Constructors
Constructor Description

Atan()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`value(double x)`	Compute the value of the function.
`DerivativeStructure`	`value(DerivativeStructure t)`	Simple mathematical function.

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.DoubleUnaryOperator
andThen, compose

Methods inherited from interface org.apache.commons.math4.legacy.analysis.UnivariateFunction
applyAsDouble

- Constructor Detail
  - Atan
```
public Atan()
```
- Method Detail
  - value
```
public double value(double x)
```
    Compute the value of the function.
    
    Specified by:
    
    value in interface UnivariateFunction
    
    Parameters:
    
    x - Point at which the function value should be computed.
    
    Returns:
    
    the value of the function.
  - value
```
public DerivativeStructure value(DerivativeStructure t)
```
    Simple mathematical function.
    UnivariateDifferentiableFunction classes compute both the value and the first derivative of the function.
    
    Specified by:
    
    value in interface UnivariateDifferentiableFunction
    
    Parameters:
    
    t - function input value
    
    Returns:
    
    function result
    
    Since:
    
    3.1