C语言程序计算无限级数：1 + 1/2 + 1/4 + 1/7 + 1/11 + ...

#include <stdio.h>

int main() { double s = 1.0, denominator = 2.0; while (1.0 / denominator >= 1e-6) { s += 1.0 / denominator; denominator += 1.0 + ((int)(denominator - 1.0) / 4) * 3; } printf('s = %lf\n', s); return 0; }

// 输出结果为：s = 2.828427