Pi.GaussLegendrePiCalculator

java.lang.Object

org.apfloat.samples.Pi.GaussLegendrePiCalculator

All Implemented Interfaces:: Serializable, Operation<Apfloat>

Enclosing class:: Pi

public static class Pi.GaussLegendrePiCalculator extends Object implements Operation<Apfloat>

Calculates pi using the Gauss-Legendre algorithm.

See Also:

Field Summary

Fields

Modifier and Type

Field

Description

private long

precision

private int

radix

private static final long

serialVersionUID
Constructor Summary

Constructors

Constructor

Description

GaussLegendrePiCalculator(long precision, int radix)

Construct a pi calculator with the specified precision and radix.
Method Summary

Modifier and Type

Method

Description

Apfloat

execute()

Calculate pi using the Gauss-Legendre iteration.

private static long

gaussLegendrePrecision(int k, int r, int radix)

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

Field Details
- serialVersionUID
  
  private static final long serialVersionUID
  See Also:
  
  Constant Field Values
- precision
  
  private long precision
- radix
  
  private int radix
Constructor Details
- GaussLegendrePiCalculator
  
  public GaussLegendrePiCalculator(long precision, int radix)
  
  Construct a pi calculator with the specified precision and radix.
  
  Parameters:
  
  precision - The target precision.
  
  radix - The radix to be used.
Method Details
- execute
  
  public Apfloat execute()
  
  Calculate pi using the Gauss-Legendre iteration.
  
  Specified by:
  
  execute in interface Operation<Apfloat>
  
  Returns:
  
  Return value of the operation.
- gaussLegendrePrecision
  
  private static long gaussLegendrePrecision(int k, int r, int radix)