Math.x

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class Math {
 
    // 数学常量定义
    public static const double E;        // 自然对数的底数e，约等于2.71828
    public static const double PI;       // 圆周率π，约等于3.14159
    public static const int SHORT_MIN;   // short类型最小值，-32768
    public static const int SHORT_MAX;   // short类型最大值，32767
    public static const int INT_MIN;     // int类型最小值，-2147483648
    public static const int INT_MAX;     // int类型最大值，2147483647
    public static const long LONG_MIN;   // long类型最小值，-9223372036854775808
    public static const long LONG_MAX;   // long类型最大值，9223372036854775807
    public static const float FLOAT_MIN; // float类型最小值，约等于1.4E-45
    public static const float FLOAT_MAX; // float类型最大值，约等于3.4028235E38
    public static const float FLOAT_EPSILON; // float类型最小可分辨差值，约等于1.4E-45
    public static const double DOUBLE_MIN;  // double类型最小值，约等于4.9E-324
    public static const double DOUBLE_MAX;  // double类型最大值，约等于1.7976931348623157E308
    public static const double DOUBLE_EPSILON; // double类型最小可分辨差值，约等于4.9E-324
 
    
    // 绝对值计算方法
    public  static final int abs(int);      // 计算整数的绝对值
    public  static final long abs(long);    // 计算长整型的绝对值
    public  static final double abs(double); // 计算双精度浮点数的绝对值
    public  static final float abs(float);  // 计算单精度浮点数的绝对值
 
    
    // 三角函数方法
    public  static final double acos(double); // 反余弦函数
    public  static final double asin(double); // 反正弦函数
    public  static final double atan(double); // 反正切函数
    public  static final double tanh(double); // 双曲正切函数
    public  static final double atan2(double, double); // 两参数的反正切函数
    public  static final double cbrt(double);
    public  static final double ceil(double);
    public  static final double cos(double);
    public  static final double cosh(double);
    public  static final double exp(double);
    public  static final double expm1(double);
    public  static final double floor(double);
    public  static final int floorDiv(int, int);
    public  static final long floorDiv(long, long);
    public  static final int max(int, int);
    public  static final long max(long, long);
    public  static final double max(double, double);
    public  static final float max(float, float);
    public  static final int min(int, int);
    public  static final long min(long, long);
    public  static final double min(double, double);
    public  static final float min(float, float);
    public  static final double pow(double, double);
    public  static final double sinh(double);
    public  static final double log1p(double);
    public  static final double log(double);
    public  static final long round(double);
    public  static final double random();
    public  static final bool isNan(double);
    public  static final bool isINF(double);
    public  static final double longBitsToDouble(long);
    public  static final double intBitsToDouble(int);
    public  static final long doubleToLongBits(double);
    public  static final double sqrt(double);
    public  static final double sin(double);
    public  static final int parseInt(String, int)
         throws IllegalArgumentException;
    public  static final long parseLong(String, int)
         throws IllegalArgumentException;
    public  static final float parseFloat(String)
         throws IllegalArgumentException;
    public  static final double parseDouble(String)
         throws IllegalArgumentException;
    public  static final int doubleToIntBits(double);
    public  static final float intBitsToFloat(int);
    public  static final int floatToIntBits(float);
};