nl.knowledgeplaza.math
Class NumberUtil

java.lang.Object
  nl.knowledgeplaza.math.NumberUtil

public class NumberUtil
extends Object

Constructor Summary

NumberUtil()

Method Summary

static boolean	equal(BigDecimal n1, BigDecimal n2)
static boolean	equal(BigDecimal n1, BigDecimal n2, BigDecimal accuracy) similar to equal, but allowing for rounding problems.
static boolean	equal(BigInteger n1, BigInteger n2)
static boolean	equalOrGreater(BigDecimal n1, BigDecimal n2)
static boolean	equalOrGreater(BigInteger n1, BigInteger n2)
static boolean	greater(BigDecimal n1, BigDecimal n2)
static boolean	greater(BigInteger n1, BigInteger n2)
static boolean	less(BigDecimal n1, BigDecimal n2)
static boolean	less(BigInteger n1, BigInteger n2)
static boolean	lessOrEqual(BigDecimal n1, BigDecimal n2)
static boolean	lessOrEqual(BigInteger n1, BigInteger n2)
static double	round(double d, int decimalPlace) rounding primaries
static double	round(float d, int decimalPlace)

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberUtil

public NumberUtil()

Method Detail

less

public static boolean less(BigInteger n1,
                           BigInteger n2)

lessOrEqual

public static boolean lessOrEqual(BigInteger n1,
                                  BigInteger n2)

equal

public static boolean equal(BigInteger n1,
                            BigInteger n2)

equalOrGreater

public static boolean equalOrGreater(BigInteger n1,
                                     BigInteger n2)

greater

public static boolean greater(BigInteger n1,
                              BigInteger n2)

less

public static boolean less(BigDecimal n1,
                           BigDecimal n2)

Parameters:

n1 -

n2 -

lessOrEqual

public static boolean lessOrEqual(BigDecimal n1,
                                  BigDecimal n2)

Parameters:

n1 -

n2 -

Returns:

equal

public static boolean equal(BigDecimal n1,
                            BigDecimal n2)

Parameters:

n1 -

n2 -

Returns:

equal

public static boolean equal(BigDecimal n1,
                            BigDecimal n2,
                            BigDecimal accuracy)

similar to equal, but allowing for rounding problems. Accuracy means the maximum difference. To be considered equal: abs(n1 - n2) < accuracy For example 0.80 and 0.82 are equal for accuracy 0.1 not for 0.01

Parameters:

n1 -

n2 -

accuracy -

Returns:

equalOrGreater

public static boolean equalOrGreater(BigDecimal n1,
                                     BigDecimal n2)

greater

public static boolean greater(BigDecimal n1,
                              BigDecimal n2)

round

public static double round(double d,
                           int decimalPlace)

rounding primaries

Parameters:

d -

decimalPlace -

round

public static double round(float d,
                           int decimalPlace)