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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » com.sun.media.jai.util   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    com.sun.media.jai.util.Rational Rational public class Rational (Code) A class to perform Rational arithmetic. since:    1.0 Field Summary public  long denom      public  long num      Constructor Summary public   Rational(long num, long denom)      public   Rational(Rational r)      Method Summary public  void add(long i)      Adds an integer to this Rational value. public  void add(Rational r)      Adds an integer to this Rational value. public static  Rational approximate(float f, float tol)      Returns a Rational that is within the given tolerance of a given float value. public static  Rational approximate(double f, double tol)      Returns a Rational that is within the given tolerance of a given double value. public static  int ceil(long num, long denom)      public static  Rational createFromFrac(long[] terms, int len)      Returns a Rational defined by a given number of terms of a continued fraction: terms[0] + 1 ------------------------- terms[1] + 1 -------------- terms[2] + ... public  double doubleValue()      Returns the approximate double value of this Rational. public  float floatValue()      Returns the approximate float value of this Rational. public static  int floor(long num, long denom)      public  void invert()      Inverts this Rational value. public static  void main(String[] args)      Prints out rational approximations of a floating point argument with 1 to 8 digits of accuracy. public  void multiply(long i)      Multiplies an integer to this Rational value. public  void multiply(Rational r)      Multiplies a Rational to this Rational value. public  void subtract(long i)      Subtracts an int from this Rational value. public  void subtract(Rational r)      Subtracts an integer to this Rational value. public  String toString()      Returns this Rational as a String in the form '###/###'. Field Detail denom public long denom(Code) num public long num(Code) Constructor Detail Rational public Rational(long num, long denom)(Code) Rational public Rational(Rational r)(Code) Method Detail add public void add(long i)(Code) Adds an integer to this Rational value. add public void add(Rational r)(Code) Adds an integer to this Rational value. approximate public static Rational approximate(float f, float tol)(Code) Returns a Rational that is within the given tolerance of a given float value. approximate public static Rational approximate(double f, double tol)(Code) Returns a Rational that is within the given tolerance of a given double value. ceil public static int ceil(long num, long denom)(Code) Returns the ceil (equivalent of Math.ceil()) createFromFrac public static Rational createFromFrac(long[] terms, int len)(Code) Returns a Rational defined by a given number of terms of a continued fraction: terms[0] + 1 ------------------------- terms[1] + 1 -------------- terms[2] + ... doubleValue public double doubleValue()(Code) Returns the approximate double value of this Rational. floatValue public float floatValue()(Code) Returns the approximate float value of this Rational. floor public static int floor(long num, long denom)(Code) Returns the floor (equivalent of Math.floor()) invert public void invert()(Code) Inverts this Rational value. main public static void main(String[] args)(Code) Prints out rational approximations of a floating point argument with 1 to 8 digits of accuracy. multiply public void multiply(long i)(Code) Multiplies an integer to this Rational value. multiply public void multiply(Rational r)(Code) Multiplies a Rational to this Rational value. subtract public void subtract(long i)(Code) Subtracts an int from this Rational value. subtract public void subtract(Rational r)(Code) Subtracts an integer to this Rational value. toString public String toString()(Code) Returns this Rational as a String in the form '###/###'. Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)