Package org.apache.commons.lang.math

Class IEEE754rUtils

java.lang.Object
org.apache.commons.lang.math.IEEE754rUtils
public class IEEE754rUtils extends Object

Provides IEEE-754r variants of NumberUtils methods.

See: http://en.wikipedia.org/wiki/IEEE_754r

Since:
2.4
Version:
$Id: IEEE754rUtils.java 905636 2010-02-02 14:03:32Z niallp $

  • Constructor Summary

    Constructors
    Constructor
    Description
    IEEE754rUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    max(double[] array)
    Returns the maximum value in an array.
    static double
    max(double a, double b)
    Gets the maximum of two double values.
    static double
    max(double a, double b, double c)
    Gets the maximum of three double values.
    static float
    max(float[] array)
    Returns the maximum value in an array.
    static float
    max(float a, float b)
    Gets the maximum of two float values.
    static float
    max(float a, float b, float c)
    Gets the maximum of three float values.
    static double
    min(double[] array)
    Returns the minimum value in an array.
    static double
    min(double a, double b)
    Gets the minimum of two double values.
    static double
    min(double a, double b, double c)
    Gets the minimum of three double values.
    static float
    min(float[] array)
    Returns the minimum value in an array.
    static float
    min(float a, float b)
    Gets the minimum of two float values.
    static float
    min(float a, float b, float c)
    Gets the minimum of three float values.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • IEEE754rUtils

      public IEEE754rUtils()

  • Method Details

    • min

      public static double min(double[] array)

      Returns the minimum value in an array.

      Parameters:
      array - an array, must not be null or empty
      Returns:
      the minimum value in the array
      Throws:
      IllegalArgumentException - if array is null
      IllegalArgumentException - if array is empty

    • min

      public static float min(float[] array)

      Returns the minimum value in an array.

      Parameters:
      array - an array, must not be null or empty
      Returns:
      the minimum value in the array
      Throws:
      IllegalArgumentException - if array is null
      IllegalArgumentException - if array is empty

    • min

      public static double min(double a, double b, double c)

      Gets the minimum of three double values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      c - value 3
      Returns:
      the smallest of the values

    • min

      public static double min(double a, double b)

      Gets the minimum of two double values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      Returns:
      the smallest of the values

    • min

      public static float min(float a, float b, float c)

      Gets the minimum of three float values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      c - value 3
      Returns:
      the smallest of the values

    • min

      public static float min(float a, float b)

      Gets the minimum of two float values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      Returns:
      the smallest of the values

    • max

      public static double max(double[] array)

      Returns the maximum value in an array.

      Parameters:
      array - an array, must not be null or empty
      Returns:
      the minimum value in the array
      Throws:
      IllegalArgumentException - if array is null
      IllegalArgumentException - if array is empty

    • max

      public static float max(float[] array)

      Returns the maximum value in an array.

      Parameters:
      array - an array, must not be null or empty
      Returns:
      the minimum value in the array
      Throws:
      IllegalArgumentException - if array is null
      IllegalArgumentException - if array is empty

    • max

      public static double max(double a, double b, double c)

      Gets the maximum of three double values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      c - value 3
      Returns:
      the largest of the values

    • max

      public static double max(double a, double b)

      Gets the maximum of two double values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      Returns:
      the largest of the values

    • max

      public static float max(float a, float b, float c)

      Gets the maximum of three float values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      c - value 3
      Returns:
      the largest of the values

    • max

      public static float max(float a, float b)

      Gets the maximum of two float values.

      NaN is only returned if all numbers are NaN as per IEEE-754r.

      Parameters:
      a - value 1
      b - value 2
      Returns:
      the largest of the values