/**
 * Write a description of class ScientificOperations here.
 *
 * @author (your name)
 * @version (a version number or a date)
 */
public  class ScientificOperations
{
    // instance variables - replace the example below with your own
    private int x;

    /**
     * Constructor for objects of class ScientificOperations
     */
    public ScientificOperations()
    {
        // initialise instance variables
        x = 0;
    }
    
    public static double product(double a,double b)
    { return a*b;
    }
     public  static double Exponent(double a,double b)
    {
        return Math.pow(a,b);
        
    }
   public static double Inverse(int x)
   { 
       double val=(double)x;
       return 1/val;
    }
    public  static double ScientificSin(int x)
    { 
        double val=Math.sin((double)x);
        return val;
        
    }
    public static double ScientificCosin(int x)
    {
        double val=Math.cos((double)x);
        return val;
    }
    public static double ScientificTan(int x)
    {
        double val=Math.tan((double)x);
        return val;
    }
    public static double InverseSin(int x)
    {
        double val=Math.asin((double)x);
        return val;
        
    }
    public static double InverseCos(int x)
    {
        double val=Math.acos((double)x);
        return val;
    }
    public static double add(double x,double y)
    {
        return x+y;
    }
    public static double sub(double x,double y)
    { return x-y;
    }
}