/* Copyright (C) 1998, 1999  Cygnus Solutions

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */
 
/**
 * @author Andrew Haley <aph@cygnus.com>
 * @date September 18, 1998.  
 */
/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
 * "The Java Language Specification", ISBN 0-201-63451-1
 * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
 * Status:  Believed complete and correct.
 */
 
package java.lang;

import java.util.Random;

public final class Math 
{
  private static Random random_;

  public static final double E  = 2.7182818284590452354;
  public static final double PI = 3.14159265358979323846;

  public static native double sin (double x);

  public static native double cos (double x);

  public static native double tan (double x);

  public static native double asin (double x);

  public static native double acos (double x);

  public static native double atan (double x);

  public static native double atan2(double y, double x);

  public static native double exp (double x);

  public static native double log (double x);

  public static native double sqrt (double x);

  public static native double pow (double x, double y);

  public static native double IEEEremainder (double x, double y);

  public static native double ceil (double x);

  public static native double floor (double x);

  public static native double rint (double x);

  public static native int round (float x);

  public static native long round (double x);
  
  public static synchronized double random ()
  {
    if (random_ == null)
      random_ = new Random ();
    return random_.nextDouble ();
  }

  public static int abs (int n)
  {
    return (n < 0 ? -n : n);
  }

  public static long abs (long n)
  {
    return (n < 0 ? -n : n);
  }

  public static native float abs (float x);

  public static native double abs (double x);

  public static int min (int a, int b)
  {
    return (a < b ? a : b);
  }

  public static long min (long a, long b)
  {
    return (a < b ? a : b);
  }

  public static native float min (float a, float b);

  public static native double min (double a, double b);

  public static int max (int a, int b)
  {
    return (a < b ? b : a);
  }

  public static long max (long a, long b)
  {
    return (a < b ? b : a);
  }

  public static native float max (float a, float b);

  public static native double max (double a, double b);

  // Don't allow objects to be made.
  private Math ()
  {
  }
}