Package de.tilman_neumann.jml.powers

Class Pow2

java.lang.Object

de.tilman_neumann.jml.powers.Pow2

public class Pow2
extends Object

Constructor Summary

Constructors

Constructor	Description
Pow2()

Method Summary

Modifier and Type	Method	Description
static BigDecimal	divPow2(BigDecimal x, int n)	Division by the n.th power of 2.
static BigDecimal	mulPow2(BigDecimal x, int n)	Multiplication with the n.th power of 2.
static BigDecimal	pow2(int n)	Power of 2 with integer exponent.

Methods inherited from class java.lang.Object

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

Constructor Detail

Pow2

public Pow2()

Method Detail

pow2

public static BigDecimal pow2(int n)

Power of 2 with integer exponent.

Parameters:

n -

Returns:

2^n

mulPow2

public static BigDecimal mulPow2(BigDecimal x,
                                 int n)

Multiplication with the n.th power of 2.

Parameters:

x -

n - Exponent

Returns:

x*2^n

divPow2

public static BigDecimal divPow2(BigDecimal x,
                                 int n)

Division by the n.th power of 2.

Parameters:

x -

n - Exponent

Returns:

x/2^n