What does $QAQ^{-1}$ actually mean? - Mathematics Stack …
Apr 28, 2020 · 1 $\begingroup$ When one thinks of matrix products like that, it's helpful to remember that matrices, unlike vectors, have two sets of bases: one for the domain and one …
1.0Gpbs是千兆网吗？为什么下载速度只有10MB/s? - 知乎
1 Gbps=1000 Mb/s=1000/8 MB/s=125 MB/s，这是和您的测试设备相连的1 Gbps物理带宽下的极速。 关键点是1 B（byte）=8 b（bit）。 实际下载速度还取决于下载源的限制、出口的物理链 …
abstract algebra - Prove that 1+1=2 - Mathematics Stack Exchange
Jan 15, 2013 · The main reason that it takes so long to get to $1+1=2$ is that Principia Mathematica starts from almost nothing, and works its way up in very tiny, incremental steps. …
Why is $1$ not a prime number? - Mathematics Stack Exchange
actually 1 was considered a prime number until the beginning of 20th century. Unique factorization was a driving force beneath its changing of status, since it's formulation is quickier if 1 is not …
Double induction example: $ 1 + q + q^2 - Mathematics Stack …
Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their …
有问题，就会有答案 - 知乎
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业 …
如何看待2025江苏国补在6月1日突然暂停下线？ - 知乎
在618活动刚开始时暂停线上国补是什么原因？后续何时还会再次开启？
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有问题，上知乎。知乎，可信赖的问答社区，以让每个人高效获得可信赖的解答为使命。知乎凭借认真、专业和友善的社区氛围，结构化、易获得的优质内容，基于问答的内容生产方式和独特 …
1/8, 1/4, 1/2, 3/4,7/8英寸分别是多少厘米? - 知乎
把1英寸分成8等分: 1/8 1/4 3/8 1/2 5/8 3/4 7/8 英寸。 This is an arithmetic sequence since there is a common difference between each term. In this case, adding 18 to the previous term in the …
Word，插入多级列表，但是改了1.1，第二章的2.1也变成1.1，随着 …
知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业 …