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#include <stdio.h>
#include <math.h>
double resf(double a)
{
	return 1/(4-a*a*a*a);
}
 double calc_eps()
 {
	double eps=1.0;
	while(1.0+eps>1.0)
	eps/=2.0;
return eps;
 }
 
 double calc_func(double x,double eps,int i)
 {
 	double up=1.0,down=4.0,res=up/down;
 	i=1;
 	while(res>eps && i<=100)
 	{
 		up*=4;
 		down*=pow(x,4);
 		res+=up/down;
 		i++;
 	}
 	return res;
 }
 
 
 
 
int main()
{
	double eps=calc_eps();
	printf("eps=%lf\n",eps);
	double res,x;
	int j=0,n=1.0/0.05;
	for(j<=n,j++);
	{
		x=j*0.05;
		res=calc_func(x,eps,i);
		printf("|lf%|20lf%|20lf%|20lf%|d%|",x,res,resf,fabs(resf(x)-res),i);
	}
	return 0;
}
 
 

prog.c: In function ‘main’:
prog.c:38:10: warning: left-hand operand of comma expression has no effect [-Wunused-value]
  for(j<=n,j++);
          ^
prog.c:38:14: error: expected ‘;’ before ‘)’ token
  for(j<=n,j++);
              ^
prog.c:38:14: error: expected expression before ‘)’ token
prog.c:38:2: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation]
  for(j<=n,j++);
  ^~~
prog.c:39:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’
  {
  ^
prog.c:41:23: error: ‘i’ undeclared (first use in this function)
   res=calc_func(x,eps,i);
                       ^
prog.c:41:23: note: each undeclared identifier is reported only once for each function it appears in

Standard output is empty