Question

Derivative of a scalar given by a function times its hessian

score 38 · Answer 1 · 2026-03-26 12:35:44

38

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Derivative of a scalar given by a function times its hessian

Published on 26 Mar 2026 - 12:35

score 688 · Answer 2 · 2018-10-11 19:11:16

688

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Intuition on mean curvature being equal to divergence of normal vector

Published on 11 Oct 2018 - 19:11

score 26 · Answer 3 · 2018-10-12 16:19:59

26

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Validity of axes renaming

Published on 12 Oct 2018 - 16:19

score 154 · Answer 4 · 2026-03-25 03:07:34

154

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Invariance of nabla under pure rotation

Published on 25 Mar 2026 - 3:07

score 159 · Answer 5 · 2018-10-12 21:36:03

Showing that the unsigned area bounded by plane curve $\gamma$ is $-\frac1{4\pi}\oint_\gamma\oint_\gamma\vec{dx}\cdot\vec{dy}\log(\|x-y\|^2)$

score 214 · Answer 6 · 2026-03-25 04:43:41

214

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Calculating Divergence $\nabla_\mu V^\mu$ and Laplacian $\nabla_\mu\nabla^\mu f$

Published on 25 Mar 2026 - 4:43

score 3.6k · Answer 7 · 2026-03-25 15:56:50

3.6k

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Differentials in Multivariable Calculus

Published on 25 Mar 2026 - 15:56

score 541 · Answer 8 · 2018-10-14 08:16:48

541

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Why is the flux of a conservative field always positive?

Published on 14 Oct 2018 - 8:16

score 154 · Answer 9 · 2018-10-15 01:53:37

154

Views

Points of Confusion About Second-Order Taylor Formula of Taylor's Theorem For Many Variables

Published on 15 Oct 2018 - 1:53

score 54 · Answer 10 · 2026-03-26 12:35:23

54

Views

Calculate variations of eigenvectors w.r.t input matrix

Published on 26 Mar 2026 - 12:35

score 37 · Answer 11 · 2018-10-15 19:39:20

37

Views

Why is the gradient defined as a vector function and not as a vector?

Published on 15 Oct 2018 - 19:39

score 71 · Answer 12 · 2026-03-25 00:07:54

71

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A inequality between $||u||_{p}$ and $||\gamma (u)||_{p, \partial \Omega}$, where $\gamma$ is the Trace Operator?

Published on 25 Mar 2026 - 0:07

score 146 · Answer 13 · 2018-10-17 16:44:49

146

Views

Show $\frac{df}{dz}=\frac{\hat{r}\bullet\nabla f}{e^{j\phi}}$ . Where $z$ is a complex number and $f$ is differentiable at z.

Published on 17 Oct 2018 - 16:44

score 508 · Answer 14 · 2018-10-18 00:51:22

508

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Deriving the area of surface of revolution formula from cylindrical coordinates

Published on 18 Oct 2018 - 0:51

score 3.5k · Answer 15 · 2026-03-26 01:11:56

3.5k

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How to evaluate $\nabla \frac 1r$, $\nabla^2 \frac 1r$, $\int_S \nabla \frac 1r . ndS$

Published on 26 Mar 2026 - 1:11

List Question

Derivative of a scalar given by a function times its hessian

Intuition on mean curvature being equal to divergence of normal vector

Validity of axes renaming

Invariance of nabla under pure rotation

Showing that the unsigned area bounded by plane curve $\gamma$ is $-\frac1{4\pi}\oint_\gamma\oint_\gamma\vec{dx}\cdot\vec{dy}\log(\|x-y\|^2)$

Calculating Divergence $\nabla_\mu V^\mu$ and Laplacian $\nabla_\mu\nabla^\mu f$

Differentials in Multivariable Calculus

Why is the flux of a conservative field always positive?

Points of Confusion About Second-Order Taylor Formula of Taylor's Theorem For Many Variables

Calculate variations of eigenvectors w.r.t input matrix

Why is the gradient defined as a vector function and not as a vector?

A inequality between $||u||_{p}$ and $||\gamma (u)||_{p, \partial \Omega}$, where $\gamma$ is the Trace Operator?

Show $\frac{df}{dz}=\frac{\hat{r}\bullet\nabla f}{e^{j\phi}}$ . Where $z$ is a complex number and $f$ is differentiable at z.

Deriving the area of surface of revolution formula from cylindrical coordinates

How to evaluate $\nabla \frac 1r$, $\nabla^2 \frac 1r$, $\int_S \nabla \frac 1r . ndS$

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