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  1. What does $QAQ^{-1}$ actually mean? - Mathematics Stack …

    Apr 28, 2020 · I'm self-learning Linear Algebra and have been trying to take a geometric approach to understand what matrices mean visually. I've noticed this matrix product pop up repeatedly …

  2. summation - Sum of 1 + 1/2 - Mathematics Stack Exchange

    How do I calculate this sum in terms of 'n'? I know this is a harmonic progression, but I can't find how to calculate the summation of it. Also, is it an expansion of any mathematical function? 1 ...

  3. 知乎 - 有问题,就会有答案

    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。

  4. abstract algebra - Prove that 1+1=2 - Mathematics Stack Exchange

    Jan 15, 2013 · Possible Duplicate: How do I convince someone that $1+1=2$ may not necessarily be true? I once read that some mathematicians provided a very length proof of $1+1=2$. Can …

  5. 毕业论文正文标题五六级怎么格式? - 知乎

    常用标题一般分为三级,这个主要指目录页显示的标题(本人称为主标题),如普通型中“1" 、"1.1"、和“1.1.1”,其他小标题随便用,若给出格式要求按格式要求,未给格式要求则做到每章 …

  6. Series expansion: $\frac {1} { (1-x)^n}$ - Mathematics Stack …

    Dec 2, 2024 · What is the expansion for $(1-x)^{-n}$? Could find only the expansion upto the power of $-3$. Is there some general formula?

  7. How can 1+1=3 be possible? - Mathematics Stack Exchange

    Feb 3, 2021 · So that's the "proof". The failure is at step 5, where you say that pq = pr p q = p r implies that q = r q = r; that's true only if you know p p is nonzero. For instance 0 ⋅ 5 = 0 ⋅ 7 0 ⋅ …

  8. 为什么 1 不能被认为是质数? - 知乎

    质数就是“只能被1和它本身整除”的自然数。 然而,我们必须在此基础之上增加一条警告,宣称数字1不是质数,这简直就像马后炮一样。

  9. 游戏评测的 1% 最低帧(1% Low FPS)是什么意思? - 知乎

    2、最高性能 电脑性能冗余越大,1%就越接近平均帧。 通常来说,体验派的3A大作比如赛博朋克2077、荒野大镖客2,1%LOW在50以上时,就能带来不错的游戏体验。 而偏向PVP或者竞技 …

  10. what is 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 + 1/7 - 1/8 +1/9

    Nov 28, 2019 · Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and …

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