public class MathIsFun {

    public static void main(String[] args) {
        System.out.println(Math.abs(-1.23));
        
        double yay = Math.pow(3, 2);
        System.out.println(yay);
        
        System.out.println(10 + Math.pow(10, -2));
        
        /*
        Math.sqrt(121.0) - Math.sqrt(256.0);
        Math.round(Math.PI) + Math.round(Math.E);
        Math.ceil(6.022) + Math.floor(15.9994);
        Math.abs(Math.min(-3, -5));
        */
    }
}