//[Update:[Tue Jan 21 IST 2020]]
/*History:
**Wed Nov 06 2019
   Started.
*/

public class Xsq
    implements RotXable {

    public double getA() { return 0.0;}
    public double getB() { return 1.0; }
    public double f(double x) { return Math.sqrt(1-x*x); }
    public double fp(double x) { return -x/Math.sqrt(1-x*x); }



}