Question

How do I obtain this function for the surface integral to be zero?

score 59 · Answer 1 · 2026-05-10 13:47:15

59

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How do I obtain this function for the surface integral to be zero?

Published on 10 May 2026 - 13:47

score 56 · Answer 2 · 2026-04-30 15:12:00

56

Views

Equation with vectors.

Published on 30 Apr 2026 - 15:12

score 47 · Answer 3 · 2026-04-15 16:01:34

47

Views

Finding the derivative of a vector w.r.t. another

Published on 15 Apr 2026 - 16:01

score 3.8k · Answer 4 · 2026-04-14 20:22:34

3.8k

Views

The gradient as a limit of a difference quotient

Published on 14 Apr 2026 - 20:22

score 1.2k · Answer 5 · 2026-05-10 13:47:41

1.2k

Views

How do I find the unit normal for the surface integral?

Published on 10 May 2026 - 13:47

score 54 · Answer 6 · 2026-05-05 09:16:07

54

Views

Given $\alpha(x,y,z) = \alpha_1\hat x +\alpha_2 \hat y+\alpha_3 \hat z$, how to write in the coordinates $\hat r, \hat \theta, \hat \phi$

Published on 05 May 2026 - 9:16

score 113 · Answer 7 · 2026-05-10 15:52:42

113

Views

Is $\nabla\cdot\hat{\frac{r}{r^3}}=-\frac{1}{r^4}+\frac{1}{r}4\pi\delta\vec{r}$ correct?

Published on 10 May 2026 - 15:52

score 7.6k · Answer 8 · 2026-04-15 13:59:20

7.6k

Views

Unit normal of sphere in cartesian coordinates

Published on 15 Apr 2026 - 13:59

score 373 · Answer 9 · 2026-04-14 16:32:07

373

Views

Let $f : \mathbb{R}^n \rightarrow \mathbb{R}^n$ be given by the equation $f(x)=\|x\|^2\cdot x$

Published on 14 Apr 2026 - 16:32

score 56 · Answer 10 · 2026-04-12 09:48:17

56

Views

How to show the following gradient equation is true?

Published on 12 Apr 2026 - 9:48

score 954 · Answer 11 · 2026-05-10 16:12:07

954

Views

How does adding a inverse cube force field to a inverse square force field change the orbit?

Published on 10 May 2026 - 16:12

score 147 · Answer 12 · 2026-05-10 15:58:15

147

Views

Elliptic-polar coordinates change

Published on 10 May 2026 - 15:58

score 42 · Answer 13 · 2026-04-09 20:42:27

42

Views

Maximum points for heat flux density

Published on 09 Apr 2026 - 20:42

score 322 · Answer 14 · 2026-05-02 23:42:40

322

Views

Why is $\oint_{C_{r_{0}}} \mathbf{v} \cdot \mathbf{r}' \mathrm ds$ called the circulation of the flow around $C_{r_{0}}$?

Published on 02 May 2026 - 23:42

score 255 · Answer 15 · 2026-04-13 20:12:42

255

Views

vector calculus: distribution of dot product over outer product

Published on 13 Apr 2026 - 20:12

List Question

How do I obtain this function for the surface integral to be zero?

Equation with vectors.

Finding the derivative of a vector w.r.t. another

The gradient as a limit of a difference quotient

How do I find the unit normal for the surface integral?

Given $\alpha(x,y,z) = \alpha_1\hat x +\alpha_2 \hat y+\alpha_3 \hat z$, how to write in the coordinates $\hat r, \hat \theta, \hat \phi$

Is $\nabla\cdot\hat{\frac{r}{r^3}}=-\frac{1}{r^4}+\frac{1}{r}4\pi\delta\vec{r}$ correct?

Unit normal of sphere in cartesian coordinates

Let $f : \mathbb{R}^n \rightarrow \mathbb{R}^n$ be given by the equation $f(x)=\|x\|^2\cdot x$

How to show the following gradient equation is true?

How does adding a inverse cube force field to a inverse square force field change the orbit?

Elliptic-polar coordinates change

Maximum points for heat flux density

Why is $\oint_{C_{r_{0}}} \mathbf{v} \cdot \mathbf{r}' \mathrm ds$ called the circulation of the flow around $C_{r_{0}}$?

vector calculus: distribution of dot product over outer product

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