Question

Calculating the distance between an ellipse and a point.

score 81 · Answer 1 · 2026-04-14 17:04:03

81

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Calculating the distance between an ellipse and a point.

Published on 14 Apr 2026 - 17:04

score 75 · Answer 2 · 2026-04-17 12:20:54

75

Views

Proving $\max\{|P(x)|,1\leq x\leq2\}\leq C_N·\max\{|P(x)|,0\leq x \leq 1\}, P\in E_N$

Published on 17 Apr 2026 - 12:20

score 499 · Answer 3 · 2026-04-14 12:16:51

499

Views

Can we cancel differentials in partial derivatives? $\frac{\partial q}{\partial x} = \frac{\partial \dot{q}}{\partial \dot{x}}?$

Published on 14 Apr 2026 - 12:16

score 172 · Answer 4 · 2026-05-10 17:56:04

172

Views

Describing this solid in cylindrical coordinates

Published on 10 May 2026 - 17:56

score 42 · Answer 5 · 2026-04-15 20:16:33

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{xy}{x^2 + y^2}$

score 511 · Answer 6 · 2026-04-13 03:48:26

511

Views

Deriving the area of surface of revolution formula from cylindrical coordinates

Published on 13 Apr 2026 - 3:48

score 276 · Answer 7 · 2026-04-14 20:16:43

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{xy^2}{x^2 + y^2}$

score 255 · Answer 8 · 2026-05-13 12:09:23

255

Views

Given a norm, show a map is Affine

Published on 13 May 2026 - 12:09

score 124 · Answer 9 · 2026-04-16 06:08:35

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{x^2y}{x^2 + y^2}$

score 1.1k · Answer 10 · 2026-04-10 01:02:08

1.1k

Views

Problem in calculating the surface integral

Published on 10 Apr 2026 - 1:02

score 101 · Answer 11 · 2026-04-16 08:48:05

101

Views

Is this the correct interpretation of the differential?

Published on 16 Apr 2026 - 8:48

score 172 · Answer 12 · 2026-04-16 22:01:26

172

Views

Prove that $2\text{Area}(\omega) \leq \text{length}(\gamma)\,\text{distance}(\gamma)$

Published on 16 Apr 2026 - 22:01

score 74 · Answer 13 · 2026-04-10 23:28:38

74

Views

Making double integral into single one

Published on 10 Apr 2026 - 23:28

score 48 · Answer 14 · 2026-05-10 20:52:08

48

Views

Find the volume of the surface.

Published on 10 May 2026 - 20:52

score 261 · Answer 15 · 2026-04-16 11:55:33

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0,0)}\frac{x^2y}{x^4 + y^2}$

List Question

Calculating the distance between an ellipse and a point.

Proving $\max\{|P(x)|,1\leq x\leq2\}\leq C_N·\max\{|P(x)|,0\leq x \leq 1\}, P\in E_N$

Can we cancel differentials in partial derivatives? $\frac{\partial q}{\partial x} = \frac{\partial \dot{q}}{\partial \dot{x}}?$

Describing this solid in cylindrical coordinates

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{xy}{x^2 + y^2}$

Deriving the area of surface of revolution formula from cylindrical coordinates

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{xy^2}{x^2 + y^2}$

Given a norm, show a map is Affine

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0, 0)} \frac{x^2y}{x^2 + y^2}$

Problem in calculating the surface integral

Is this the correct interpretation of the differential?

Prove that $2\text{Area}(\omega) \leq \text{length}(\gamma)\,\text{distance}(\gamma)$

Making double integral into single one

Find the volume of the surface.

Prove or disprove each of the follow function has limits $x \to a$ by the definition $\lim_{(x, y) \to (0,0)}\frac{x^2y}{x^4 + y^2}$

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