Question

How to find the tangent to a function passing through the origin

score 31 · Answer 1 · 2019-11-27 18:36:03

31

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How to find the tangent to a function passing through the origin

Published on 27 Nov 2019 - 18:36

score 2.4k · Answer 2 · 2019-11-27 20:55:37

2.4k

Views

prove: $\nabla \cdot \frac{\vec{r}}{r^3} = 0$

Published on 27 Nov 2019 - 20:55

score 167 · Answer 3 · 2026-03-28 21:44:22

167

Views

Does $\operatorname{curl}(\mathbf{a})=\mathbf0$ always imply $\mathbf{a}=\boldsymbol{\nabla}b$? Is it always conservative?

Published on 28 Mar 2026 - 21:44

score 110 · Answer 4 · 2026-03-29 10:15:14

110

Views

How to study the variations and sketch a parametric curve?

Published on 29 Mar 2026 - 10:15

score 95 · Answer 5 · 2026-03-28 21:44:19

95

Views

If vector fields commute at each point of a manifold then they are tangent to manifold

Published on 28 Mar 2026 - 21:44

score 214 · Answer 6 · 2026-04-02 01:01:15

214

Views

vector $a=mi + j$ and vector $b=i + mj$. Find $m$ given the acute angle between them is $30^{\circ}$

Published on 02 Apr 2026 - 1:01

score 198 · Answer 7 · 2026-03-29 15:37:17

198

Views

Difficulty understanding proof regarding conservative vector fields

Published on 29 Mar 2026 - 15:37

score 188 · Answer 8 · 2026-03-25 04:38:11

188

Views

Gradient vector of scalar field

Published on 25 Mar 2026 - 4:38

score 88 · Answer 9 · 2019-11-29 20:33:51

88

Views

Let $f(x,y)=\frac{x^2+y^2} x$ In each point of the circle $x^2+y^2-2y=0$ calculate the directional derivative

Published on 29 Nov 2019 - 20:33

score 65 · Answer 10 · 2019-11-29 21:58:21

65

Views

Express Vector LN in terms of r and s

Published on 29 Nov 2019 - 21:58

score 73 · Answer 11 · 2026-03-26 11:16:13

73

Views

Stokes' Theorem equaling $0$.

Published on 26 Mar 2026 - 11:16

score 50 · Answer 12 · 2026-03-29 14:59:22

50

Views

Let $F(x,y,z)= f(x^2-y^2,2x-y+z)$ with $f$ differentiable find $\nabla F(1,2,3)$ using the chain rule

Published on 29 Mar 2026 - 14:59

score 183 · Answer 13 · 2026-03-26 02:47:36

183

Views

The projection of the force F=ai+bj, where a and b are non-zero constants, in the direction of the vector w=i+j

Published on 26 Mar 2026 - 2:47

score 24 · Answer 14 · 2026-03-28 20:07:48

24

Views

Identity relating $V \circ \nabla F$ and $V( \nabla \circ F)$?

Published on 28 Mar 2026 - 20:07

score 1.6k · Answer 15 · 2019-11-30 19:42:21

1.6k

Views

Is it valid to commute a gradient operator in a dot product?

Published on 30 Nov 2019 - 19:42

List Question

How to find the tangent to a function passing through the origin

prove: $\nabla \cdot \frac{\vec{r}}{r^3} = 0$

Does $\operatorname{curl}(\mathbf{a})=\mathbf0$ always imply $\mathbf{a}=\boldsymbol{\nabla}b$? Is it always conservative?

How to study the variations and sketch a parametric curve?

If vector fields commute at each point of a manifold then they are tangent to manifold

vector $a=mi + j$ and vector $b=i + mj$. Find $m$ given the acute angle between them is $30^{\circ}$

Difficulty understanding proof regarding conservative vector fields

Gradient vector of scalar field

Let $f(x,y)=\frac{x^2+y^2} x$ In each point of the circle $x^2+y^2-2y=0$ calculate the directional derivative

Express Vector LN in terms of r and s

Stokes' Theorem equaling $0$.

Let $F(x,y,z)= f(x^2-y^2,2x-y+z)$ with $f$ differentiable find $\nabla F(1,2,3)$ using the chain rule

The projection of the force F=ai+bj, where a and b are non-zero constants, in the direction of the vector w=i+j

Identity relating $V \circ \nabla F$ and $V( \nabla \circ F)$?

Is it valid to commute a gradient operator in a dot product?

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