#include<stdio.h>
#include<math.h>
int main(
void)
{
int denominator,flag;
double item,pi;
flag=
1;
denominator=
1;
item=
1.0;
pi=
0;
while(fabs(item)>=
0.0001){
item=flag*
1.0/
denominator;
pi=pi+
item;
flag=-
flag;
denominator=denominator+
2;
}
pi=pi*
4;
printf("pi=%.4f\n",pi);
return 0;
}
转载于:https://www.cnblogs.com/liruijia199531/p/3357280.html
