摘要: 重要展开与收敛: OGF \(\sum\limits_{i\ge 0}x^i=\frac{1}{1-x}\) \(\sum\limits_{i\ge 0}x^{k\times i}=\frac{1}{1-x^k}\) \(\sum\limits_{i\ge 0}p^ix^i=\frac{1}{1-p 阅读全文
posted @ 2025-03-12 07:53 Richard_whr 阅读(21) 评论(0) 推荐(0)