Question

Smoothness of a parametric curve

score 167 · Answer 1 · 2026-04-16 06:51:43

167

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Smoothness of a parametric curve

Published on 16 Apr 2026 - 6:51

score 46 · Answer 2 · 2026-04-11 07:03:07

46

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Curvature of a path

Published on 11 Apr 2026 - 7:03

score 105 · Answer 3 · 2026-04-16 18:29:06

105

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Instantaneous Speed and Curvature

Published on 16 Apr 2026 - 18:29

score 905 · Answer 4 · 2026-04-16 18:45:26

905

Views

Continuity of $\begin{cases}(xy+y^2)/(x^4+y^2)&\text{if }(x,y)\neq(0,0),\\0&\text{if }(x,y)=(0,0)\end{cases}$ at origin using polar coordinates

Published on 16 Apr 2026 - 18:45

score 101 · Answer 5 · 2026-04-16 02:22:46

101

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I need 3" strips of plywood between 9" strips of rigid foam for ~570 sq. ft. How many 4x8 sheets of each?

Published on 16 Apr 2026 - 2:22

score 145 · Answer 6 · 2026-04-14 15:06:42

145

Views

Partial derivative of $\sin(xz)$: Is this making sense and is it a proper use of notation?

Published on 14 Apr 2026 - 15:06

score 38 · Answer 7 · 2026-05-06 07:02:22

38

Views

Third Critical Point of Multi-Variable Function Can't be Found Algebraically

Published on 06 May 2026 - 7:02

score 442 · Answer 8 · 2026-04-14 22:33:55

442

Views

Showing a vector field on the unit quaternions is invariant under left translation action

Published on 14 Apr 2026 - 22:33

score 48 · Answer 9 · 2026-04-16 03:31:36

48

Views

Suppose $a\in\mathbb{R}^n$ is a point and $Y\subset\mathbb{R}^n$ is a closed set. Prove that $\exists\:y\in Y$ s.t. $d(a,Y)=|a-y|$

Published on 16 Apr 2026 - 3:31

score 1.6k · Answer 10 · 2026-04-08 21:03:08

1.6k

Views

Explanation of Proof of Second-Derivative Test for Local Extrema

Published on 08 Apr 2026 - 21:03

score 1.3k · Answer 11 · 2026-05-10 14:59:36

1.3k

Views

Conversion of a Vector in a Cartesian Coordinate System to a Cylindrical Coordinate System

Published on 10 May 2026 - 14:59

score 157 · Answer 12 · 2026-05-11 07:21:28

157

Views

Extension of vector field implies extension of function

Published on 11 May 2026 - 7:21

score 1k · Answer 13 · 2026-04-14 23:25:33

1k

Views

Is $\frac{x^2y^2}{\sqrt{x^2+y^2}}$ continuous?

Published on 14 Apr 2026 - 23:25

score 63 · Answer 14 · 2026-04-13 10:36:22

63

Views

Is $|\frac{y}{x^2}|\exp(- |\frac{y}{x^2}|)$ continuous?

Published on 13 Apr 2026 - 10:36

score 1k · Answer 15 · 2026-04-13 23:48:08

1k

Views

Moment of Inertia of a Tetrahedron about the X-axis and its Centroid.

Published on 13 Apr 2026 - 23:48

List Question

Smoothness of a parametric curve

Curvature of a path

Instantaneous Speed and Curvature

Continuity of $\begin{cases}(xy+y^2)/(x^4+y^2)&\text{if }(x,y)\neq(0,0),\\0&\text{if }(x,y)=(0,0)\end{cases}$ at origin using polar coordinates

I need 3" strips of plywood between 9" strips of rigid foam for ~570 sq. ft. How many 4x8 sheets of each?

Partial derivative of $\sin(xz)$: Is this making sense and is it a proper use of notation?

Third Critical Point of Multi-Variable Function Can't be Found Algebraically

Showing a vector field on the unit quaternions is invariant under left translation action

Suppose $a\in\mathbb{R}^n$ is a point and $Y\subset\mathbb{R}^n$ is a closed set. Prove that $\exists\:y\in Y$ s.t. $d(a,Y)=|a-y|$

Explanation of Proof of Second-Derivative Test for Local Extrema

Conversion of a Vector in a Cartesian Coordinate System to a Cylindrical Coordinate System

Extension of vector field implies extension of function

Is $\frac{x^2y^2}{\sqrt{x^2+y^2}}$ continuous?

Is $|\frac{y}{x^2}|\exp(- |\frac{y}{x^2}|)$ continuous?

Moment of Inertia of a Tetrahedron about the X-axis and its Centroid.

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