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Jacobian matrix of time dependant system

score 1.3k · Answer 1 · 2026-04-09 22:17:23

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Jacobian matrix of time dependant system

Published on 09 Apr 2026 - 22:17

score 90 · Answer 2 · 2026-03-24 23:58:03

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Let $F : \mathbb{R}^2 \to \mathbb{R}$ be defined by the equation $F(x, y) = f(x, y, g(x, y))$. (a) Find $DF$ in terms of the partials of $f$ and $g$.

Published on 24 Mar 2026 - 23:58

score 5.9k · Answer 3 · 2026-04-16 10:18:39

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Divergence of matrix-vector product

Published on 16 Apr 2026 - 10:18

score 450 · Answer 4 · 2026-03-24 23:58:04

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Show that the directional derivatives of $f$ and $g$ exist everywhere, but that there is a $u \neq 0$ for which $h'(0,u)$ does not

Published on 24 Mar 2026 - 23:58

score 56 · Answer 5 · 2026-05-05 08:28:42

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Integral of 1/norm on a surface of a ball not centered around the origin

Published on 05 May 2026 - 8:28

score 53 · Answer 6 · 2026-03-25 07:18:03

Flux of $\vec F=\left(2\pi x+\frac{2x^2y^2}{\pi} \right) \vec{\imath}+\left(2\pi xy-\frac{4y}{\pi}\right)\vec{\jmath}$ across an ellipse

score 635 · Answer 7 · 2026-05-07 07:41:25

635

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203

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score 920 · Answer 12 · 2026-04-12 10:03:46

920

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score 1.7k · Answer 13 · 2026-04-14 08:41:49

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score 234 · Answer 14 · 2026-04-14 12:07:01

234

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score 90 · Answer 15 · 2026-05-05 02:06:28

90

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I am currently reading Special Relativity by Woodhouse, I need help with understanding divergence of magnetic fields

Published on 05 May 2026 - 2:06

List Question

Jacobian matrix of time dependant system

Let $F : \mathbb{R}^2 \to \mathbb{R}$ be defined by the equation $F(x, y) = f(x, y, g(x, y))$. (a) Find $DF$ in terms of the partials of $f$ and $g$.

Divergence of matrix-vector product

Show that the directional derivatives of $f$ and $g$ exist everywhere, but that there is a $u \neq 0$ for which $h'(0,u)$ does not

Integral of 1/norm on a surface of a ball not centered around the origin

Flux of $\vec F=\left(2\pi x+\frac{2x^2y^2}{\pi} \right) \vec{\imath}+\left(2\pi xy-\frac{4y}{\pi}\right)\vec{\jmath}$ across an ellipse

Integral involving delta functions and vector quantities

How to approximate numerically the gradient of the function on a triangular mesh

Sinks and Sources in Gradient Fields

Recover scalar field from gradient

Confusion with generating unit vectors

When a local diffeomorphism is a diffeomorphism

Dual vs reciprocal basis?

Integral of Vector Equations of Motion

I am currently reading Special Relativity by Woodhouse, I need help with understanding divergence of magnetic fields

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