#include#include int main(){ int sign,n; float p,i,t; i=1.0; sign=1; n=0; p=0.0; t=1.0; while(fabs(t)>=1e-6) { sign=-sign; i=i+2; p=p+t; t=sign/i; n=n+1; } p=p*4; printf("%f\n",p);//π的近似值 printf("%d\n",n);//执行次数 return 0;}
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#include#include int main(){ int sign,n; float p,i,t; i=1.0; sign=1; n=0; p=0.0; t=1.0; while(fabs(t)>=1e-6) { sign=-sign; i=i+2; p=p+t; t=sign/i; n=n+1; } p=p*4; printf("%f\n",p);//π的近似值 printf("%d\n",n);//执行次数 return 0;}
转载于:https://www.cnblogs.com/qfdy123/p/9983732.html