Question

Infinitesimal length in the cylindrical system

score 362 · Answer 1 · 2018-03-31 02:03:36

362

Views

Infinitesimal length in the cylindrical system

Published on 31 Mar 2018 - 2:03

score 892 · Answer 2 · 2026-03-24 20:33:23

892

Views

How to deal with inconclusive Hessian test for maximization of $(x+y)^2/(x^2+y^2)$

Published on 24 Mar 2026 - 20:33

score 202 · Answer 3 · 2018-03-31 19:09:35

202

Views

Show that if $\int_{Q}f$ exists, then $\int_{y\in B}f(x,y)$ exists for $x\in A-D$, where $D$ is a set of measure zero in $\mathbb{R}^k$

Published on 31 Mar 2018 - 19:09

score 896 · Answer 4 · 2018-03-31 22:36:27

896

Views

Show that if $f$ is integrable over $S_1$ and $S_2$, then $f$ is integrable over $S_1-S_2$, and $\int_{S_1-S_2}f=\int_{S_1}f-\int_{S_1\cap S_2}f$.

Published on 31 Mar 2018 - 22:36

score 285 · Answer 5 · 2018-04-01 23:04:52

285

Views

Show that if $A$ is a nonempty, rectifiable open set in $R^n$ , then $v(A) > 0$.

Published on 01 Apr 2018 - 23:04

score 131 · Answer 6 · 2026-03-25 07:54:20

131

Views

Why is $d \vec S = (\frac{\partial r}{\partial u}) \times (\frac{\partial r}{\partial v}) \ du\ dv$ and not $=(\nabla F)\ du \ dv$ on $S$?

Published on 25 Mar 2026 - 7:54

score 69 · Answer 7 · 2026-03-24 18:45:36

69

Views

$\;{u|}_{\partial \Omega} =0\;$ implies $\; \frac{\partial u}{\partial τ}=0\;$

Published on 24 Mar 2026 - 18:45

score 271 · Answer 8 · 2026-03-25 15:57:27

271

Views

Calculating Flux

Published on 25 Mar 2026 - 15:57

score 953 · Answer 9 · 2018-04-05 02:20:25

953

Views

Finding the speed of a velocity vector

Published on 05 Apr 2018 - 2:20

score 27 · Answer 10 · 2018-04-05 05:30:49

27

Views

Need help with a with a change of variable question please.

Published on 05 Apr 2018 - 5:30

score 316 · Answer 11 · 2026-03-25 07:52:08

316

Views

Surface integral over the surface of a sphere

Published on 25 Mar 2026 - 7:52

score 130 · Answer 12 · 2018-04-05 13:07:15

130

Views

Distance between two vectors: Vector Calculus

Published on 05 Apr 2018 - 13:07

score 40 · Answer 13 · 2018-04-05 14:14:46

40

Views

Distance between two vectors or two points: vector calculus

Published on 05 Apr 2018 - 14:14

score 48 · Answer 14 · 2026-03-25 16:40:00

48

Views

How to show $\frac{d}{ds} = \frac{d\mathbf{r}}{ds}\cdot \nabla$?

Published on 25 Mar 2026 - 16:40

score 399 · Answer 15 · 2026-03-23 09:40:08

399

Views

Calculating a normal vector field for a surface defined by spherical harmonics

Published on 23 Mar 2026 - 9:40

List Question

Infinitesimal length in the cylindrical system

How to deal with inconclusive Hessian test for maximization of $(x+y)^2/(x^2+y^2)$

Show that if $\int_{Q}f$ exists, then $\int_{y\in B}f(x,y)$ exists for $x\in A-D$, where $D$ is a set of measure zero in $\mathbb{R}^k$

Show that if $f$ is integrable over $S_1$ and $S_2$, then $f$ is integrable over $S_1-S_2$, and $\int_{S_1-S_2}f=\int_{S_1}f-\int_{S_1\cap S_2}f$.

Show that if $A$ is a nonempty, rectifiable open set in $R^n$ , then $v(A) > 0$.

Why is $d \vec S = (\frac{\partial r}{\partial u}) \times (\frac{\partial r}{\partial v}) \ du\ dv$ and not $=(\nabla F)\ du \ dv$ on $S$?

$\;{u|}_{\partial \Omega} =0\;$ implies $\; \frac{\partial u}{\partial τ}=0\;$

Calculating Flux

Finding the speed of a velocity vector

Need help with a with a change of variable question please.

Surface integral over the surface of a sphere

Distance between two vectors: Vector Calculus

Distance between two vectors or two points: vector calculus

How to show $\frac{d}{ds} = \frac{d\mathbf{r}}{ds}\cdot \nabla$?

Calculating a normal vector field for a surface defined by spherical harmonics

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