#include  <stdio.h>
#define FX  (x*x+2*y*y)/(2*x)
#define FY  (x*x+2*y*y)/(4*y)
void main(void){for(double x=0.1, y=0.01, e=0.0001, f=e+1;(f-x)*(f-x)>e*e; f=x, x-=FX, y-=FY, printf("%f\t%f\n",x,y));}