List questions from partial-derivative

Published on 31 May 2019 - 4:28

853

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How can I find the saddle point of $Z = x^2 + 3y^2 + 3xy – 6x + 3y – 6$

Published on 29 Mar 2026 - 14:59

61

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Can someone tell me where did that come form

Published on 31 May 2019 - 9:48

40

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What is the net change in $w$?

Published on 29 Mar 2026 - 14:18

96

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Cauchy-Riemann equations for square root

Published on 25 Mar 2026 - 11:17

84

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Applying multidimensional chain rule to $g: \mathbb{R} \to \mathbb{R}$.

Published on 26 Mar 2026 - 12:33

205

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Chain rule for direction derivative with multivariate and vector-valued functions

Published on 25 Mar 2026 - 7:40

63

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Prove that $\frac{\partial}{\partial x}f(x-x')=-\left(\frac{\partial}{\partial x'}\right)f(x-x')$

Published on 03 Jun 2019 - 8:28

102

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A Charpit-type problem

Published on 25 Mar 2026 - 18:14

49

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Total Derivative $f(x, y, z ) = x^2 + y^2 -z^2$

Published on 04 Jun 2019 - 0:56

32

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Elementary partial derivative

Published on 04 Jun 2019 - 7:28

53

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Solve $xz_x+2yz_y=4yx^2z$ with a first integral.

Published on 05 Jun 2019 - 0:22

20

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Elementary Second partial derivative

Published on 05 Jun 2019 - 9:30

162

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Why does this partial derivative gives this result?

Published on 06 Jun 2019 - 0:44

328

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differentiation chain rule two variables

Published on 28 Mar 2026 - 16:56

List Question

what's the $\frac{\partial^2{f}}{\partial{x^2}}$ of this?

How can I find the saddle point of $Z = x^2 + 3y^2 + 3xy – 6x + 3y – 6$

Can someone tell me where did that come form

What is the net change in $w$?

Cauchy-Riemann equations for square root

Applying multidimensional chain rule to $g: \mathbb{R} \to \mathbb{R}$.

Chain rule for direction derivative with multivariate and vector-valued functions

Prove that $\frac{\partial}{\partial x}f(x-x')=-\left(\frac{\partial}{\partial x'}\right)f(x-x')$

A Charpit-type problem

Total Derivative $f(x, y, z ) = x^2 + y^2 -z^2$

Elementary partial derivative

Solve $xz_x+2yz_y=4yx^2z$ with a first integral.

Elementary Second partial derivative

Why does this partial derivative gives this result?

differentiation chain rule two variables

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