public class maincl {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        double fVal;
        double aN;
        double cntN;
        double qN;
        for (double x=0;x<=2;x+=0.2)
        {
            aN=x;
            cntN=0;
            fVal=0;
            while(Math.abs(aN)>0.000001)
            {
                fVal+=aN;
                qN=-x*x*(2*cntN+1)/(cntN+1)*(2*cntN+3);
                aN=qN*aN;
                cntN+=1;
            }
            System.out.println("x="+x+" f="+fVal+" cntN="+cntN+" aN="+aN);
        }
        System.out.print("Whasaaap?");
    }

}