这样的代码有什么错误的？

Question

#include<stdio.h>#include<math.h>int main(){ int sinx = 0, x, a = 0, b = 1, i = 0,m=1, n = 1,y=1; scanf("%f", &x); while (fabs(m) > pow(10, -6)) { a = (-1)^i; i++; for (b = 1; b <= n; b++) { b = y*b; } m = a*x^n / b; sinx = sinx + m; n = n + 2; } printf("总共有%1f项\n", i); return 0;}