c语言 sin(x)=x-x^3/3!+x^5/5!-x^7/7!+...从键盘输入x,输出相应正弦值,精确到0.000001

#include "cstdio" int main() {int i; double s=0,t,x; scanf("%lf",&x); t=x; x*=x; for(i=1;t>1e-9;i+=2) {if(i%4==1)s+=t; else s-=t; t*=x/((i+1)*(i+2)); } printf("%.6lf\n",s); return 0;}