shift

/**
     * Returns new vector with elements shifted right by a given number of positions.
     */
    public Vector shifted(int amount) {

    int shift = 0;
    Vector v = new Vector(length);

    for (int i = 0; i < this.length; i++) {
        if ((i - amount) < 0) {
            shift = (this.length + (i - amount));
        } else {
            shift = i - (this.length - amount);
        }
        v.elements[i] = this.elements[shift];
    }
        return v;
    }