List questions from partial-derivative

Published on 12 May 2014 - 4:04

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Functions with symmetrical behaviour with respect to an axis or a plane

Published on 25 Mar 2026 - 16:01

211

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Shape of contour of Laplacian

Published on 16 May 2014 - 13:44

104

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Exists $C$ constant: $||f||_{L^{\infty}(\mathbb{R})}\leq\{ ||f||_{L^2(\mathbb{R}}+||f'||_{L^2(\mathbb{R})} \}, \forall f\in S(\mathbb{R})$

Published on 25 Mar 2026 - 21:54

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Partial derivative of the logistic function

Published on 17 May 2014 - 18:02

47

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Help with definition of derivative

Published on 18 May 2014 - 0:52

40

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Question about definition of derivative

Published on 18 May 2014 - 1:11

2.7k

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Question about limit definition of partial derivative

Published on 18 May 2014 - 2:30

62

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Trouble using chain rule

Published on 18 May 2014 - 4:35

452

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Why can't I use the chain rule on $f(x,y) = \frac{xy^2}{x^2 + y^2}$?

Published on 18 May 2014 - 5:19

97

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If $z = f(x, y)$, then why are $\partial_x z$ and $\partial_y z$ functions of x and y also?

Published on 25 Mar 2026 - 21:31

90

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Maximizing sum with a constraint

Published on 21 May 2014 - 16:43

97

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Finding the homomorphism that links the linear part of a dynamical system to the nonlinear part.

Published on 02 Apr 2026 - 20:17

59

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Boundary Value Problem$ 5U_x+2U_y=(x-y)^2$

Published on 29 Mar 2026 - 2:34

139

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Second derivative test inconclusive, all derivatives are 0, moving critical point to origin, no result?

Published on 23 May 2014 - 17:39

List Question

Partial derivatives and continuity of function in two variable

Functions with symmetrical behaviour with respect to an axis or a plane

Shape of contour of Laplacian

Exists $C$ constant: $||f||_{L^{\infty}(\mathbb{R})}\leq\{ ||f||_{L^2(\mathbb{R}}+||f'||_{L^2(\mathbb{R})} \}, \forall f\in S(\mathbb{R})$

Partial derivative of the logistic function

Help with definition of derivative

Question about definition of derivative

Question about limit definition of partial derivative

Trouble using chain rule

Why can't I use the chain rule on $f(x,y) = \frac{xy^2}{x^2 + y^2}$?

If $z = f(x, y)$, then why are $\partial_x z$ and $\partial_y z$ functions of x and y also?

Maximizing sum with a constraint

Finding the homomorphism that links the linear part of a dynamical system to the nonlinear part.

Boundary Value Problem$ 5U_x+2U_y=(x-y)^2$

Second derivative test inconclusive, all derivatives are 0, moving critical point to origin, no result?

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