List questions from multivariable-calculus

Published on 10 Apr 2026 - 8:17

47

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Concerning Lagrange undetermined multipliers

Published on 12 Apr 2026 - 11:03

248

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Prove $\iint_D f(x + y) dA = \int_0^1 uf(u)du$

Published on 15 Apr 2026 - 10:14

105

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Proving that a function is constant if $\frac{\partial f}{\partial x_j} (x) = 0 \ \ \ \forall {j \in \text{{1,...,n}}} \ \ \ \forall x \in U $

Published on 15 Apr 2026 - 6:46

90

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Evaluating $\iint_D\frac{y}{\sqrt{x^2+y^2}}\ln(x^2+y^2)\,dx\,dy$ using polar transformation

Published on 11 May 2026 - 8:39

210

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Gaussian multi-variate integral

Published on 10 May 2026 - 20:08

2.7k

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Why is double integration of 1 representing area?

Published on 13 Apr 2026 - 11:12

88

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Anomaly in Curl Computation

Published on 15 May 2026 - 6:25

352

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Logistic equation solution

Published on 10 Apr 2026 - 13:06

55

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Question about a particular proof of a proposition from multivariable calculus, concerning the gradient.

Published on 11 Apr 2026 - 20:31

474

Views

Directional derivative of matrix multiplication

Published on 10 Apr 2026 - 16:05

2k

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How to find $ \lim_{(x,y)\to(0,0)} \frac{\sin^2 (x-y)}{|x|+|y|} $?

Published on 16 Apr 2026 - 1:57

1.5k

Views

How do I find a tangent plane without a specified point?

Published on 11 May 2026 - 0:14

472

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Proving continuity of a multivariable function by "reducing" it to a single variable function

Published on 16 Apr 2026 - 23:22

256

Views

Choice of parameter for the solution to a PDE, method of characteristics.

Published on 13 Apr 2026 - 8:20

List Question

Is there any current method of distinguishing a local and a global extrema?

Concerning Lagrange undetermined multipliers

Prove $\iint_D f(x + y) dA = \int_0^1 uf(u)du$

Proving that a function is constant if $\frac{\partial f}{\partial x_j} (x) = 0 \ \ \ \forall {j \in \text{{1,...,n}}} \ \ \ \forall x \in U $

Evaluating $\iint_D\frac{y}{\sqrt{x^2+y^2}}\ln(x^2+y^2)\,dx\,dy$ using polar transformation

Gaussian multi-variate integral

Why is double integration of 1 representing area?

Anomaly in Curl Computation

Logistic equation solution

Question about a particular proof of a proposition from multivariable calculus, concerning the gradient.

Directional derivative of matrix multiplication

How to find $ \lim_{(x,y)\to(0,0)} \frac{\sin^2 (x-y)}{|x|+|y|} $?

How do I find a tangent plane without a specified point?

Proving continuity of a multivariable function by "reducing" it to a single variable function

Choice of parameter for the solution to a PDE, method of characteristics.

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