想请问c语言求sinx近似值的问题

Question

#include<stdio.h> int main() { int i,n=1,op=1; float x,h=1.0,we=1.0,sigh; double sum=0; scanf("%.2f",&x); while(fabs(sigh)>=1E-6) { for(i=1;i<=n;i++) { we*=i; h*=x; } sigh=(h/we)*op; sum+=sigh; n+=2; op=-op; } printf("%.2f\n",sum); return 0; } 想请问大佬，哪里有问题