Question

How to evaluate a parameterized surface integral?

score 803 · Answer 1 · 2026-05-11 04:57:10

803

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How to evaluate a parameterized surface integral?

Published on 11 May 2026 - 4:57

score 65 · Answer 2 · 2026-04-11 05:24:51

65

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Finding a function with arbitrary Jacobian determinant everywhere

Published on 11 Apr 2026 - 5:24

score 6.9k · Answer 3 · 2026-05-14 13:36:23

6.9k

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Area of a simple closed curve

Published on 14 May 2026 - 13:36

score 83 · Answer 4 · 2026-04-14 23:47:01

83

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Question about lemma for $P(x,y) =Ax^2 + 2Bxy + Cy^2$.

Published on 14 Apr 2026 - 23:47

score 47 · Answer 5 · 2026-04-26 08:49:02

47

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Let $f:U\subset \mathbb{R}^n\to \mathbb{R}^m$ is $C^1$. Show that $D\tilde{f}$ is independent on the choice of $\tilde{f}$ and $U_p$

Published on 26 Apr 2026 - 8:49

score 1.7k · Answer 6 · 2026-05-11 08:46:53

1.7k

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Why doesn't integrating over a sphere with $\phi$ between $0$ and $2\pi$ and $\theta$ between $0$ and $\pi$ work?

Published on 11 May 2026 - 8:46

score 386 · Answer 7 · 2026-04-07 19:16:41

386

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Multivariate function to univariate function

Published on 07 Apr 2026 - 19:16

score 186 · Answer 8 · 2026-04-16 13:09:43

186

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$\iint e^{x-y}$ over the triangle with vertices at $(0,0),(1,3),(2,2)$

Published on 16 Apr 2026 - 13:09

score 528 · Answer 9 · 2026-04-12 05:35:11

528

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Why does the method of Lagrange multiplier fail?

Published on 12 Apr 2026 - 5:35

score 510 · Answer 10 · 2026-05-10 21:26:51

510

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(Why) can we treat a function of a variable as another independent variable?

Published on 10 May 2026 - 21:26

score 112 · Answer 11 · 2026-04-24 07:48:11

112

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Suppose $f:U\to \mathbb{R}^m$ is differentiable and $U$ is convex. Show that $\vert f(b)-f(a)\vert \leq M\vert b-a \vert$

Published on 24 Apr 2026 - 7:48

score 141 · Answer 12 · 2026-04-15 21:10:42

$U\subseteq\mathbb{R}^n$ is open and connected $f:U\to \mathbb{R}^m$ differentiable.$Df(x)=0$ $\forall x \in U$. then $f$ is constant.

score 1.2k · Answer 13 · 2026-04-13 12:49:11

1.2k

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Optimization with an Ellipse, Lagrange Multipliers

Published on 13 Apr 2026 - 12:49

score 13.6k · Answer 14 · 2026-04-08 17:38:19

13.6k

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Finding the Maximum and Minimum Values of a Function in a Domain

Published on 08 Apr 2026 - 17:38

score 71 · Answer 15 · 2026-04-14 09:01:08

71

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Calculus of variations confusion

Published on 14 Apr 2026 - 9:01

List Question

How to evaluate a parameterized surface integral?

Finding a function with arbitrary Jacobian determinant everywhere

Area of a simple closed curve

Question about lemma for $P(x,y) =Ax^2 + 2Bxy + Cy^2$.

Let $f:U\subset \mathbb{R}^n\to \mathbb{R}^m$ is $C^1$. Show that $D\tilde{f}$ is independent on the choice of $\tilde{f}$ and $U_p$

Why doesn't integrating over a sphere with $\phi$ between $0$ and $2\pi$ and $\theta$ between $0$ and $\pi$ work?

Multivariate function to univariate function

$\iint e^{x-y}$ over the triangle with vertices at $(0,0),(1,3),(2,2)$

Why does the method of Lagrange multiplier fail?

(Why) can we treat a function of a variable as another independent variable?

Suppose $f:U\to \mathbb{R}^m$ is differentiable and $U$ is convex. Show that $\vert f(b)-f(a)\vert \leq M\vert b-a \vert$

$U\subseteq\mathbb{R}^n$ is open and connected $f:U\to \mathbb{R}^m$ differentiable.$Df(x)=0$ $\forall x \in U$. then $f$ is constant.

Optimization with an Ellipse, Lagrange Multipliers

Finding the Maximum and Minimum Values of a Function in a Domain

Calculus of variations confusion

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