Question

Motivation for constructing $F$ s.t. $\ker(\text{curl}) \subset \text{Im}(\text{grad})$, $\ker(\text{div}) \subset \text{Im}(\text{curl})$

score 769 · Answer 1 · 2014-12-24 22:08:49

769

Views

Motivation for constructing $F$ s.t. $\ker(\text{curl}) \subset \text{Im}(\text{grad})$, $\ker(\text{div}) \subset \text{Im}(\text{curl})$

Published on 24 Dec 2014 - 22:08

score 61 · Answer 2 · 2026-03-25 23:58:46

61

Views

The locus of points $z$ which satisfy $|z - k^2c| = k|z - c|$, for $k \neq 1$, is a circle

Published on 25 Mar 2026 - 23:58

score 1.3k · Answer 3 · 2014-12-31 20:14:10

1.3k

Views

Plotting 3 equidistant points on a sphere

Published on 31 Dec 2014 - 20:14

score 8k · Answer 4 · 2015-01-02 16:36:41

8k

Views

Focal length of an ellipse and related results

Published on 02 Jan 2015 - 16:36

score 51 · Answer 5 · 2015-01-02 22:28:59

51

Views

Find the map of the closed ball $B(0,1)$ of the following continuous function $f(x,y,z)=(\frac x3,\frac y2-1,\frac z9+1)$ and $f^{-1}(0)$.

Published on 02 Jan 2015 - 22:28

score 27 · Answer 6 · 2019-10-03 16:31:34

27

Views

General parabola-circle intersection

Published on 03 Oct 2019 - 16:31

score 122 · Answer 7 · 2019-10-03 17:08:52

122

Views

Locus of points $(a,b)$ such that circle $(x-a)^2+(y-b)^2=b^2$ is tangent to parabola $y=x^2$

Published on 03 Oct 2019 - 17:08

score 208 · Answer 8 · 2019-10-04 11:08:47

208

Views

Does the linear system in four variables determines a collection of three dimensional objects?

Published on 04 Oct 2019 - 11:08

score 602 · Answer 9 · 2019-10-04 17:01:02

602

Views

Linear equation and triangles

Published on 04 Oct 2019 - 17:01

score 46 · Answer 10 · 2026-03-27 06:17:08

46

Views

Are there other forms of lines in $\mathbb R \times \mathbb R$?

Published on 27 Mar 2026 - 6:17

score 83 · Answer 11 · 2019-10-05 06:20:17

83

Views

Expressing the vector between a vertex of a triangle and a point on the opposite edge?

Published on 05 Oct 2019 - 6:20

score 79 · Answer 12 · 2019-10-07 21:25:38

79

Views

Finding surface of revolution

Published on 07 Oct 2019 - 21:25

score 121 · Answer 13 · 2026-03-27 12:34:26

121

Views

Vector Approximation on The Unit Sphere

Published on 27 Mar 2026 - 12:34

score 26 · Answer 14 · 2019-10-08 14:19:29

26

Views

Coordinates of the altitude

Published on 08 Oct 2019 - 14:19

score 516 · Answer 15 · 2019-10-08 19:45:29

516

Views

Using vectors, find the height from vertex $A$ of the triangle with vertices $A(-2,-1,-1)$, $B(0,3,2)$, $C(3,3-2)$.

Published on 08 Oct 2019 - 19:45

List Question

Motivation for constructing $F$ s.t. $\ker(\text{curl}) \subset \text{Im}(\text{grad})$, $\ker(\text{div}) \subset \text{Im}(\text{curl})$

The locus of points $z$ which satisfy $|z - k^2c| = k|z - c|$, for $k \neq 1$, is a circle

Plotting 3 equidistant points on a sphere

Focal length of an ellipse and related results

Find the map of the closed ball $B(0,1)$ of the following continuous function $f(x,y,z)=(\frac x3,\frac y2-1,\frac z9+1)$ and $f^{-1}(0)$.

General parabola-circle intersection

Locus of points $(a,b)$ such that circle $(x-a)^2+(y-b)^2=b^2$ is tangent to parabola $y=x^2$

Does the linear system in four variables determines a collection of three dimensional objects?

Linear equation and triangles

Are there other forms of lines in $\mathbb R \times \mathbb R$?

Expressing the vector between a vertex of a triangle and a point on the opposite edge?

Finding surface of revolution

Vector Approximation on The Unit Sphere

Coordinates of the altitude

Using vectors, find the height from vertex $A$ of the triangle with vertices $A(-2,-1,-1)$, $B(0,3,2)$, $C(3,3-2)$.

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