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  1. What do the symbols d/dx and dy/dx mean? - Mathematics Stack …

    May 2, 2015 · Okay this may sound stupid but I need a little help... What do $\Large \frac {d} {dx}$ and $\Large \frac {dy} {dx}$ mean? I need a thorough explanation. Thanks.

  2. What is the difference between $dy$ and $Δy$ and why is $dx$ is …

    Jul 31, 2020 · For examples, this $\mathrm {d}y$ as $\delta y$ and $\mathrm {d}x$ as $\delta x$ notation is used in videos like the ones mentioned in a comment by the OP Yashasv Prajapati: …

  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。知乎凭借认真、专业 …

  4. In differential calculus, why is dy/dx written as d/dx ( y)?

    In differential calculus, We know that dy/dx is the ratio between the change in y and the change in x. In other words, the rate of change in y with respect to x. Then, why is dy/dx written as d/dx...

  5. Where does the $dy$ go in the process of integration?

    Jul 25, 2019 · Yes, ∫dy is somehow the same as y! imagine dy as a bit of y and ∫ as a sum over the bits.

  6. Meaning of dx, dy, du (u-substitution) - Mathematics Stack Exchange

    Apr 8, 2018 · Meaning of dx, dy, du (u-substitution) Ask Question Asked 7 years, 7 months ago Modified 6 years, 6 months ago

  7. calculus - What is $dy/dy$? - Mathematics Stack Exchange

    Sorry for reviving this, but how does this work if y is a constant, for example, y = 10. dy/dy = d (10)/dy. So 1= 0? that doesn't make sense

  8. Why is $dy dx = r dr d \\theta$ - Mathematics Stack Exchange

    Possible Duplicate: Explain $\iint \mathrm dx\mathrm dy = \iint r \mathrm d\alpha\mathrm dr$ I'm reading the proof of Gaussian integration. When we change to polar coordinates, why do we …

  9. calculus - Why is the 2nd derivative written as $\frac {\mathrm …

    Mar 5, 2011 · In Leibniz notation, the 2nd derivative is written as $$\dfrac {\mathrm d^2y} {\mathrm dx^2}\ ?$$ Why is the location of the $2$ in different places in the $\mathrm …

  10. Integral of $ (d^2y/dx^2) dy$ - Mathematics Stack Exchange

    Jun 23, 2020 · I saw this as a step in a calculation and it was confusing. The left cancels down to: $$\int \frac {d^2y} {dx^2}dy$$ But surely the answer is $\frac {d^2y} {dx^2}y$; instead, $\frac …