Question

How do I sketch a vector function such as $ \mathbf{v} = \frac{\mathbf{\hat{r}}}{r^2} $?

score 62 · Answer 1 · 2026-04-11 09:56:32

62

Views

How do I sketch a vector function such as $ \mathbf{v} = \frac{\mathbf{\hat{r}}}{r^2} $?

Published on 11 Apr 2026 - 9:56

score 44 · Answer 2 · 2026-04-11 08:16:26

44

Views

Derivative of self-dot product intuition

Published on 11 Apr 2026 - 8:16

score 72 · Answer 3 · 2026-03-25 23:09:06

72

Views

What does $\vec{\nabla}^2 \vec{E} = \vec{\nabla}^2 \left[ f(\vec{k} \cdot \vec{r} - \omega t) \vec{E}_0 \right]$ mean?

Published on 25 Mar 2026 - 23:09

score 53 · Answer 4 · 2026-04-03 19:15:46

53

Views

Angle of a rod with XY plane

Published on 03 Apr 2026 - 19:15

score 111 · Answer 5 · 2026-04-12 20:47:59

111

Views

Parametrizing a Unit Circle with Custom Coordinate Mapping

Published on 12 Apr 2026 - 20:47

score 64 · Answer 6 · 2026-04-13 15:50:56

64

Views

The plane and hyperplane concepts in $\mathbb{R}^n$

Published on 13 Apr 2026 - 15:50

score 40 · Answer 7 · 2024-01-16 18:40:42

40

Views

Gradient of $\nabla f(B)=\frac{\text{df}}{\text{dB}}$ ? $B$ is a vector. What is meant by differentiating the function by $B$?

Published on 16 Jan 2024 - 18:40

score 26 · Answer 8 · 2026-04-11 16:53:40

26

Views

Volume integral of gradient field

Published on 11 Apr 2026 - 16:53

score 66 · Answer 9 · 2026-03-27 18:48:51

66

Views

Differential surface element and nabla operator

Published on 27 Mar 2026 - 18:48

score 34 · Answer 10 · 2026-03-26 17:53:50

34

Views

I think $\nabla=\sum_{i=1}^n D_i\cdot (e_i)_p$ is correct. ("Calculus on Manifolds" by Michael Spivak)

Published on 26 Mar 2026 - 17:53

score 36 · Answer 11 · 2026-04-09 17:15:33

36

Views

Kurzweil-Hensotck integral, an unclear point in a book for undergraduates by Fonda

Published on 09 Apr 2026 - 17:15

score 62 · Answer 12 · 2026-03-30 01:16:07

62

Views

Surface integral of given vector field through a given surface

Published on 30 Mar 2026 - 1:16

score 35 · Answer 13 · 2026-04-11 12:56:01

35

Views

Why is $ \int \Phi \vec{\nabla} \cdot \vec{E} d V = \int \vec{E} \cdot \vec{\nabla} \Phi d V+\int \vec{\nabla} \cdot(\vec{E} \Phi) d V$?

Published on 11 Apr 2026 - 12:56

score 34 · Answer 14 · 2026-04-03 08:48:54

34

Views

Sign for triple product of second derivatives

Published on 03 Apr 2026 - 8:48

score 102 · Answer 15 · 2026-03-27 08:55:24

102

Views

Using index notation to prove vector identities

Published on 27 Mar 2026 - 8:55

List Question

How do I sketch a vector function such as $ \mathbf{v} = \frac{\mathbf{\hat{r}}}{r^2} $?

Derivative of self-dot product intuition

What does $\vec{\nabla}^2 \vec{E} = \vec{\nabla}^2 \left[ f(\vec{k} \cdot \vec{r} - \omega t) \vec{E}_0 \right]$ mean?

Angle of a rod with XY plane

Parametrizing a Unit Circle with Custom Coordinate Mapping

The plane and hyperplane concepts in $\mathbb{R}^n$

Gradient of $\nabla f(B)=\frac{\text{df}}{\text{dB}}$ ? $B$ is a vector. What is meant by differentiating the function by $B$?

Volume integral of gradient field

Differential surface element and nabla operator

I think $\nabla=\sum_{i=1}^n D_i\cdot (e_i)_p$ is correct. ("Calculus on Manifolds" by Michael Spivak)

Kurzweil-Hensotck integral, an unclear point in a book for undergraduates by Fonda

Surface integral of given vector field through a given surface

Why is $ \int \Phi \vec{\nabla} \cdot \vec{E} d V = \int \vec{E} \cdot \vec{\nabla} \Phi d V+\int \vec{\nabla} \cdot(\vec{E} \Phi) d V$?

Sign for triple product of second derivatives

Using index notation to prove vector identities

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