C 语言：用公式精准求 π 值，误差小于 10⁻⁷！

```c #include <stdio.h> int main() { double pi = 0.0; double sign = 1.0; double denominator = 1.0; double term; while (1) { term = sign / denominator; pi += term; sign = -sign; denominator += 2; if (term < 1e-7) { break; } } pi *= 4; printf("pi = %.10f\n", pi); return 0; } ``` ######[AI写代码神器 | 137点数解答 | 2024-09-29 11:00:37]