List questions from multivariable-calculus

Published on 12 Apr 2026 - 21:35

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When Do I Have An Invertible Matrix of Partial Derivatives?

Published on 24 Mar 2026 - 22:01

40

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ODE trajectory contains point implies it contains other points

Published on 15 Mar 2018 - 2:58

67

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Inverse of $f(x,y)=(x^2+y^2,x^2-y^2$)

Published on 15 Mar 2018 - 10:57

162

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Understanding a limiting procedure

Published on 09 Apr 2026 - 13:50

1k

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How do you obtain this form of the second derivative of this multivariable function?

Published on 13 Apr 2026 - 11:17

110

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Ambiguity about the Lagrangian method of optimization

Published on 24 Mar 2026 - 20:36

417

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Disk of radius $6$ cm has density $10g\;cm^{-2}$ at center, $0$ at edge, density is linear function of distance from center. Find mass of the disc.

Published on 25 Mar 2026 - 4:43

53

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Question on notation of 3rd degree Taylor expansion

Published on 12 Apr 2026 - 22:40

422

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How to integrate 2-forms over a sphere?

Published on 09 Apr 2026 - 11:46

411

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Why are continuous partial derivatives a sufficient condition for differentiability?

Published on 11 Apr 2026 - 19:21

254

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PDE - Wave Equation

Published on 10 Apr 2026 - 5:18

7.1k

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Why is gradient in the direction of ascent but not descent?

Published on 25 Mar 2026 - 7:16

62

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Finding potential for a vector field

Published on 13 Apr 2026 - 0:34

98

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Let $K \subset R^{n} $ be a compact set and $p \in R^m$ then $ \{p \} \times K$ is compact in $R^{n +m}$

Published on 27 Mar 2026 - 13:48

List Question

Raindrop rolling downhill on a surface z=f(x,y)

When Do I Have An Invertible Matrix of Partial Derivatives?

ODE trajectory contains point implies it contains other points

Inverse of $f(x,y)=(x^2+y^2,x^2-y^2$)

Understanding a limiting procedure

How do you obtain this form of the second derivative of this multivariable function?

Ambiguity about the Lagrangian method of optimization

Disk of radius $6$ cm has density $10g\;cm^{-2}$ at center, $0$ at edge, density is linear function of distance from center. Find mass of the disc.

Question on notation of 3rd degree Taylor expansion

How to integrate 2-forms over a sphere?

Why are continuous partial derivatives a sufficient condition for differentiability?

PDE - Wave Equation

Why is gradient in the direction of ascent but not descent?

Finding potential for a vector field

Let $K \subset R^{n} $ be a compact set and $p \in R^m$ then $ \{p \} \times K$ is compact in $R^{n +m}$

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