List questions from multivariable-calculus

Published on 11 Apr 2026 - 23:09

39

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A complication in Surface Integral

Published on 11 Apr 2026 - 15:24

551

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what is limit of $\lim_{(x,y)\rightarrow(0,0)}\frac{\sin(2x+2y)-2x-2y}{\root\of {{x^2+y^2}}}$

Published on 17 Apr 2026 - 13:10

982

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Change of variables and linear transformations in multiple integrals

Published on 12 Apr 2026 - 15:20

2.1k

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Why does the Lagrange remainder work for multivariate functions?

Published on 12 Apr 2026 - 8:50

164

Views

Distributional proof of Helmholtz decomposition

Published on 14 Apr 2026 - 2:05

375

Views

Show that rational function of $C^k$ polynomials is $C^k$

Published on 23 Apr 2026 - 7:49

359

Views

Geometric interpretation of the derivative in 3 dimensional space

Published on 05 May 2026 - 14:43

129

Views

does there exist a function of two variables that is not continuous at origin, but whose restriction to every polynomial is,

Published on 09 Apr 2026 - 23:06

50

Views

To prove the existence of a derivative

Published on 05 May 2026 - 14:44

1k

Views

Proving Euler's identity (fluid mechanics) by differentiating the determinant $J=\partial(x,y,z)/\partial(X,Y,Z)$

Published on 12 Apr 2026 - 18:55

94

Views

Finding maximum and minimum – which points am i missing?

Published on 12 Apr 2026 - 3:01

54

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Evaluating the three-dimensional integral $\int d^{3}\vec{k} \frac{\exp(i\vec{k}\cdot\vec{R})}{k^{2}(k^{2}+a^{2})^{2}}$

Published on 15 Apr 2026 - 22:14

82

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Calculating Flux of a surface

Published on 13 Apr 2026 - 3:17

950

Views

Derivative of a squared definite integral

Published on 05 May 2026 - 14:43

List Question

Proving every continous function reaches maximum on a set A.

A complication in Surface Integral

what is limit of $\lim_{(x,y)\rightarrow(0,0)}\frac{\sin(2x+2y)-2x-2y}{\root\of {{x^2+y^2}}}$

Change of variables and linear transformations in multiple integrals

Why does the Lagrange remainder work for multivariate functions?

Distributional proof of Helmholtz decomposition

Show that rational function of $C^k$ polynomials is $C^k$

Geometric interpretation of the derivative in 3 dimensional space

does there exist a function of two variables that is not continuous at origin, but whose restriction to every polynomial is,

To prove the existence of a derivative

Proving Euler's identity (fluid mechanics) by differentiating the determinant $J=\partial(x,y,z)/\partial(X,Y,Z)$

Finding maximum and minimum – which points am i missing?

Evaluating the three-dimensional integral $\int d^{3}\vec{k} \frac{\exp(i\vec{k}\cdot\vec{R})}{k^{2}(k^{2}+a^{2})^{2}}$

Calculating Flux of a surface

Derivative of a squared definite integral

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