C语言实验——圆周率
#include <stdio.h>
int main()
{
int n;
double x=0, i, t=1;
scanf("%d",&n);
for(i=1;i<=4*n-1;i=i+2)
{
x=x+(t/i);
t=-t;
}
printf("%.5f",4*x);
return 0;
}
#include <stdio.h>
int main()
{
int n;
double x=0, i, t=1;
scanf("%d",&n);
for(i=1;i<=4*n-1;i=i+2)
{
x=x+(t/i);
t=-t;
}
printf("%.5f",4*x);
return 0;
}