Admin: 1 версия

2010-06-01T06:12:24Z

1 версия

в 18:01, 31 мая 2010

2010-05-31T18:01:43Z

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== Math.copySign ==



<source lang="java">

public class FloastPointDemo {
public static void main(String[] args) {
// Returns a copySign of the first argument
double d = Math.copySign (1234.56, -1);
System.out.println ("Math.copySign (1234.56, -1) = " + d);
}
}
// Math.copySign (1234.56, -1) = -1234.56
</source>



== Math.getExponent ==



<source lang="java">

public class FloastPointDemo {
public static void main (String[] args) {
// Returns the unbiased exponent value of a double,
// where 2^exp <= d. In this case, 2^4 <= 17
int exp = Math.getExponent (17.0);
System.out.println ("Math.getExponent (17.0) = " + exp);
}
}
//Math.getExponent (17.0) = 4
</source>



== Math.nextAfter ==



<source lang="java">

public class FloastPointDemo {
public static void main(String[] args) {
// Returns the lesser adjacent of a double
double lesserAdjacent = Math.nextAfter(123.0, 120.0);
System.out.println("Math.nextAfter (123.0, 120.0) = " + lesserAdjacent);
}
}
// Math.nextAfter (123.0, 120.0) = 122.99999999999999
</source>



== Math.nextUp ==



<source lang="java">

public class FloastPointDemo {
public static void main(String[] args) {
// Returns the greater adjacent of a double
double greaterAdjacent = Math.nextUp(123.0);
System.out.println("Math.nextUp (123.0) = " + greaterAdjacent);
}
}
// Math.nextUp (123.0) = 123.00000000000001
</source>



== Math.scalb ==



<source lang="java">

public class FloastPointDemo {
public static void main (String[] args) {
// Returns 12.0 x (2^3)
double scalbResult = Math.scalb (12.0, 3);
System.out.println ("Math.scalb (12.0, 3) = " + scalbResult);
}
}
//Math.scalb (12.0, 3) = 96.0
</source>

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Java/JDK 6/Floating Point Number - История изменений

Admin: 1 версия

в 18:01, 31 мая 2010