gnu.math
Class IntFraction

java.lang.Object
  java.lang.Number
      gnu.math.Numeric
          gnu.math.Quantity
              gnu.math.Complex
                  gnu.math.RealNum
                      gnu.math.RatNum
                          gnu.math.IntFraction

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Comparable

public class IntFraction
extends RatNum
implements java.io.Externalizable

Implementation of exact rational numbers a ratio of two IntNums.

See Also:

Serialized Form

Field Summary

Fields inherited from class gnu.math.Numeric

CEILING, FLOOR, ROUND, TRUNCATE

Constructor Summary

IntFraction(IntNum num, IntNum den)

Method Summary

Numeric	add(java.lang.Object y, int k) Return this + k * obj.
Numeric	addReversed(Numeric x, int k) Calculate x+k&this.
int	compare(java.lang.Object obj) Return an integer for which of {# code this} or {#code obj} is larger.
int	compareReversed(Numeric x)
IntNum	denominator()
Numeric	div(java.lang.Object y)
Numeric	divReversed(Numeric x)
double	doubleValue() The value of the real component, as a double.
boolean	isNegative()
long	longValue()
Numeric	mul(java.lang.Object y)
Numeric	mulReversed(Numeric x)
Numeric	neg()
static IntFraction	neg(IntFraction x)
IntNum	numerator()
void	readExternal(java.io.ObjectInput in)
int	sign() Return 1 if >0; 0 if ==0; -1 if <0; -2 if NaN.
java.lang.String	toString(int radix)
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class gnu.math.RatNum

add, compare, divide, equals, equals, infinity, isExact, isZero, make, power, rationalize, times, toExact, toExactInt, toInt

Methods inherited from class gnu.math.RealNum

abs, add, asBigDecimal, compareTo, divide, exp, im, log, max, min, re, rneg, sin, sqrt, times, toExactInt, toExactInt, toInt, toScaledInt, toScaledInt, toScaledInt, toStringDecimal, toStringScientific, toStringScientific, toStringScientific, toStringScientific

Methods inherited from class gnu.math.Complex

add, angle, compare, divide, doubleImagValue, doubleRealValue, equals, imMinusOne, imOne, make, make, neg, number, polar, polar, power, times

Methods inherited from class gnu.math.Quantity

add, compare, dimensions, divide, imValue, make, make, make, reValue, times, unit

Methods inherited from class gnu.math.Numeric

add, div_inv, floatValue, geq, grt, intValue, mul_ident, sub, toString

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Detail

IntFraction

public IntFraction(IntNum num,
                   IntNum den)

Method Detail

numerator

public final IntNum numerator()

Specified by:

numerator in class RatNum

denominator

public final IntNum denominator()

Specified by:

denominator in class RatNum

isNegative

public final boolean isNegative()

Specified by:

isNegative in class RealNum

sign

public final int sign()

Description copied from class: RealNum

Return 1 if >0; 0 if ==0; -1 if <0; -2 if NaN.

Specified by:

sign in class RealNum

compare

public final int compare(java.lang.Object obj)

Description copied from class: Numeric

Return an integer for which of {# code this} or {#code obj} is larger. Return 1 if this>obj; 0 if this==obj; -1 if this<obj; -2 if this!=obj otherwise (for example if either is NaN); -3 if not comparable (incompatible types).

Overrides:

compare in class Complex

compareReversed

public int compareReversed(Numeric x)

Overrides:

compareReversed in class Quantity

add

public Numeric add(java.lang.Object y,
                   int k)

Description copied from class: Numeric

Return this + k * obj.

Specified by:

add in class RealNum

addReversed

public Numeric addReversed(Numeric x,
                           int k)

Description copied from class: Numeric

Calculate x+k&this.

Overrides:

addReversed in class Complex

mul

public Numeric mul(java.lang.Object y)

Specified by:

mul in class RealNum

mulReversed

public Numeric mulReversed(Numeric x)

Overrides:

mulReversed in class Complex

div

public Numeric div(java.lang.Object y)

Specified by:

div in class RealNum

divReversed

public Numeric divReversed(Numeric x)

Overrides:

divReversed in class Complex

neg

public static IntFraction neg(IntFraction x)

neg

public Numeric neg()

Overrides:

neg in class Complex

longValue

public long longValue()

Overrides:

longValue in class Complex

doubleValue

public double doubleValue()

Description copied from class: Quantity

The value of the real component, as a double. This is relative to the unit().dims - i.e. unit()/doubleValue() is factored in.

Overrides:

doubleValue in class Complex

toString

public java.lang.String toString(int radix)

Overrides:

toString in class Complex

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException