#include<stdio.h>
#include<math.h>
main()
{
   double x,y,dx,exact,gosa;
   y=1.0;
   x=0.0;
   dx=0.1;
   while(x<0.6){
      exact=11.0/9.0*exp(3.0*x)-2.0/3.0*x-2.0/9.0;
      gosa=fabs(exact-y);
      printf("x=%4.1lf y=%14.7e exact=%14.7e error=%14.7e\n",x,y,exact,gosa);
      y=y+dx*(2.0*x+3.0*y);
      x=x+dx;
   }
   return(0);
}