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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. 微分符号,dx,dy到底是什么含义? - 知乎

    微分符号,dx,dy到底是什么含义? 刚学高数,用的同济教材,学到隐函数求导的时候,教材莫名奇妙的出现dy,dx ,d/dy等符号,此后教材导数全用d什么d什么表示了,教材没有对这些符 …

  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. 老师说链式法则里某个 dy/dx 不能理解为 dy 除以 ... - 知乎

    \frac {dy} {dx} = \frac {dy} {df_1}\;\frac {df_1} {df_2}\cdots\frac {df_n} {dx} 这个过程中,我们就可以看成不断地同时“乘”、“除” df_k ,因为每一步的添加项都 没有破坏分子是因其自变量改变而产 …

  6. What exactly are dx and dy in differential equations?

    May 5, 2020 · But in differential equations, we multiply the denominator of dy/dx and receive dx multiplied by some function on the right hand side (what does that even mean?) and then we …

  7. 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, 8 months ago Modified 6 years, 7 months ago

  8. calculus - What's the meaning of the differential dy?

    Mar 18, 2025 · You may have intended to say $ (x_1+\Delta x,y_1+\Delta y)= (x_2,y_2)$ is on the function curve while $\left (x_1+\Delta x,y_1+\Delta x \frac {dy} {dx}\right)= (x_1+\Delta …

  9. calculus - Understanding the syntax for derivatives - dy/dx ...

    8 I'm new to calculus, and I'm trying to understand the syntax of derivatives: $$\frac {dy} {dx}$$ At a glance it implies some kind of division and some variable "d" has entered the picture. Does …

  10. 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.