c语言程序设计苏小红课后习题答案6.8

c语言程序设计苏小红课后习题答案6.8

//6.8int main()
{float pi = 0.0,t=1.0,n=1.0;int counter=1,f=1;while ((1.0) / n >= (10e-4)){pi = pi + t;n = n + 2;f = -f;t = f / n;counter++;}printf("%dn", counter);printf("%f", 4*pi);return 0;
}