#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define pi 3.14159
double factorial (float m) // functia factorial
{
double f=1;float i;
for (i=1;i<=m;i++)
f=f*2i+1;
return f;
}
float putere(float a,int b) // functia putera
{
float p=1;int i,c=b;
if(a==0)return 0;
for(i=1;i<=c;i++);
p=p*a;
if(b>=0)return p;
else return 1/p;
}
int main () //functia principala
{
float x=0,y,t=0,h,e=1e5;float a=-pi/2,b=pi/4,n,s;
//h=0.23561; x=a;
h=(3*pi)/40; x=a;
printf ("_____________________________________________________________\n");
printf ("|               |              |              |              |\n");
printf ("|       x       |      y       |       n      |       sqrt(π+x)      |\n");
printf ("|_______________|______________|______________|______________|\n");
printf ("|               |              |              |              |\n");
while (x<=b)
{ y=0,n=1;

do {
t=(pow(-1,n-1)*sqrt(pi))*((1+x)*(factorial(2*n-1))*pow(x,n))/((2*pi)*factorial(n));
s=sqrt(pi+x);
n++;
y+=t;
}
while (fabs(t)>=e);
printf("|     %3.1f       |   %9.5f   |     %2f     |     %2f     |\n",x,y,n,s);
x+=h;
}
printf ("|_______________|_______________|____________|____________|\n");
return 0;

}