List questions from vector-analysis

Published on 14 Apr 2026 - 15:03

368

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Proove locus of foot of perpendicular lies on hyperboloid

Published on 10 Apr 2026 - 20:06

34

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Does the following equation imply $u=0$

Published on 10 Apr 2026 - 19:56

245

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Does a stationary point of $f(x, y)$ need to have a zero slope in every direction?

Published on 09 Apr 2026 - 15:24

87

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Intersection between two surfaces.

Published on 09 Apr 2026 - 18:21

622

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How to find field lines?

Published on 10 Apr 2026 - 22:30

396

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For which $u$ does the derivative $f'(u,0)$ of $f(x,y)=xy/(x^2+y^2)$ exist?

Published on 16 Apr 2026 - 9:15

136

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For which $u$ does the derivative $f'(u,0)$ of $f(x,y)=x^2y^2/(x^2y^2+(y-x)^2)$ exist?

Published on 16 Apr 2026 - 14:44

76

Views

Prove there exists no vector that $\nabla\times A=\frac{\hat r}{r^2}$

Published on 13 Apr 2026 - 1:15

85

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Why is the following surface integral wrong?

Published on 12 Apr 2026 - 10:46

385

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How should I understand curl?

Published on 08 Apr 2026 - 18:25

73

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Differential in vector calculus (Find coordinate expreession of directional derivatives)

Published on 16 Apr 2026 - 1:01

3.2k

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Is this vector field conservative? My team thinks it is conservative, I don't?

Published on 15 Apr 2026 - 7:53

3.9k

Views

Surface integral in spherical coordinates?

Published on 12 Apr 2026 - 5:59

279

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What space are acceleration vectors in?

Published on 13 Apr 2026 - 14:35

List Question

Maximising scaler triple product.

Proove locus of foot of perpendicular lies on hyperboloid

Does the following equation imply $u=0$

Does a stationary point of $f(x, y)$ need to have a zero slope in every direction?

Intersection between two surfaces.

How to find field lines?

For which $u$ does the derivative $f'(u,0)$ of $f(x,y)=xy/(x^2+y^2)$ exist?

For which $u$ does the derivative $f'(u,0)$ of $f(x,y)=x^2y^2/(x^2y^2+(y-x)^2)$ exist?

Prove there exists no vector that $\nabla\times A=\frac{\hat r}{r^2}$

Why is the following surface integral wrong?

How should I understand curl?

Differential in vector calculus (Find coordinate expreession of directional derivatives)

Is this vector field conservative? My team thinks it is conservative, I don't?

Surface integral in spherical coordinates?

What space are acceleration vectors in?

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