org.apache.commons.math3.analysis.function

## Class Log

- java.lang.Object
- - org.apache.commons.math3.analysis.function.Log

- All Implemented Interfaces:
    DifferentiableUnivariateFunction, UnivariateFunction

      public class Log
      extends Object
      implements DifferentiableUnivariateFunction

  Natural logarithm function.
  Since:
    3.0
  Version:
    $Id$

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `Log()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `UnivariateFunction` | `derivative()` Returns the derivative of the function
    `double` | `value(double x)` Compute the value of the function.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### Log

          public Log()

  - ### 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.

    - #### derivative

          public UnivariateFunction derivative()

      Returns the derivative of the function
      Specified by:
        `derivative` in interface `DifferentiableUnivariateFunction`
      Returns:
        the derivative function

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