StrictMath.java

package java.lang;

public class StrictMath {
  
  public static double atan2(double y, double x) {
    return Math.atan2(y,x);
  }
  
  public static double cos(double a){
    return Math.cos(a);
  }
  
  public static int round(float a){
    return Math.round(a);
  }
  
  public static double sin(double a){
    return Math.sin(a);
  }
  
  public static double sqrt(double a){
    return Math.sqrt(a);
  }
}