摘要: 摘抄自: https://en.wikipedia.org/wiki/Rearrangement_inequality#Proof In mathematics, the rearrangement inequality[1] states that {\displaystyle x_{n}y_{1 阅读全文
posted @ 2018-11-26 19:20 大米饼 阅读(343) 评论(0) 推荐(0) 编辑