Class Pi.BorweinPiCalculator

java.lang.Object

org.apfloat.samples.Pi.BorweinPiCalculator

All Implemented Interfaces:

Serializable, Operation<Apfloat>

Enclosing class:

Pi

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

Calculates pi using the Borweins' quartic algorithm.

Version:

1.14.0

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private long	precision
private int	radix
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
BorweinPiCalculator(long precision, int radix)	Construct a pi calculator with the specified precision and radix.

Method Summary

Modifier and Type	Method	Description
private static long	borweinPrecision(int k, int r, int radix)
Apfloat	execute()	Calculate pi using the Borweins' quartic iteration.

Methods inherited from class 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

BorweinPiCalculator

public BorweinPiCalculator(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 Borweins' quartic iteration.

Specified by:

execute in interface Operation<Apfloat>

Returns:

Return value of the operation.

borweinPrecision

private static long borweinPrecision(int k,
 int r,
 int radix)