Question

What shape does this 3D graph form?

score 54 · Answer 1 · 2026-04-16 03:55:21

54

Views

What shape does this 3D graph form?

Published on 16 Apr 2026 - 3:55

score 177 · Answer 2 · 2026-04-14 21:13:01

177

Views

How to calculate the divergence of normal vector field?

Published on 14 Apr 2026 - 21:13

score 595 · Answer 3 · 2026-04-15 20:21:54

595

Views

Prove that if $2n$ points are colored red or blue, then we can always connect the red points to the blue points with non-intersecting line segments.

Published on 15 Apr 2026 - 20:21

score 197 · Answer 4 · 2026-04-14 10:23:05

197

Views

Show that the area of two triangles formed by lines in parallelogram are equal

Published on 14 Apr 2026 - 10:23

score 105 · Answer 5 · 2026-04-14 00:46:12

105

Views

Given an angle and its bisector, find a function determining any angle on the plane (Hadamard)

Published on 14 Apr 2026 - 0:46

score 131 · Answer 6 · 2026-04-16 23:16:31

131

Views

Prove a collinearity equivalence (Euclidean geometry)

Published on 16 Apr 2026 - 23:16

score 52 · Answer 7 · 2026-04-15 23:28:34

52

Views

Find the area of the triangular region MBN

Published on 15 Apr 2026 - 23:28

score 140 · Answer 8 · 2026-04-13 22:30:31

140

Views

Proving that a quadrilateral is cyclic

Published on 13 Apr 2026 - 22:30

score 100 · Answer 9 · 2026-04-13 15:14:18

100

Views

Geometric proof that muliplication in the complex numbers $\mathbb C$ is commutative

Published on 13 Apr 2026 - 15:14

score 30 · Answer 10 · 2026-04-14 14:03:18

30

Views

Shortest halving line

Published on 14 Apr 2026 - 14:03

score 51 · Answer 11 · 2026-04-10 21:32:18

51

Views

Doubt about of isometries representation in $\mathbb{R}^{3}$

Published on 10 Apr 2026 - 21:32

score 111 · Answer 12 · 2026-04-09 09:24:59

111

Views

Finding orientation of a rectangle using the points sampled on its surface

Published on 09 Apr 2026 - 9:24

score 32 · Answer 13 · 2026-04-14 19:39:10

32

Views

Is there a name for this kind of functions? $f(x,y) = z \iff x=g(y,z)$.

Published on 14 Apr 2026 - 19:39

score 45 · Answer 14 · 2026-04-16 05:33:56

45

Views

In $\mathbb R^n$ prove $\{ y : |y| = R\} = \{ y : |y-x| = \frac{|x|}{R } | y - \bar{x} | \} $ where $|x| < R$ and $\bar{x}$ is the reflection of $x$

Published on 16 Apr 2026 - 5:33

score 419 · Answer 15 · 2026-04-15 06:44:51

419

Views

Let $ABC$ be a triangle with $AB > BC$ and $\gamma$ its circumscribed circle. Let $M, N$ be on the sides $[AB]$, $[BC]$, so that $AM = CN$.

Published on 15 Apr 2026 - 6:44

List Question

What shape does this 3D graph form?

How to calculate the divergence of normal vector field?

Prove that if $2n$ points are colored red or blue, then we can always connect the red points to the blue points with non-intersecting line segments.

Show that the area of two triangles formed by lines in parallelogram are equal

Given an angle and its bisector, find a function determining any angle on the plane (Hadamard)

Prove a collinearity equivalence (Euclidean geometry)

Find the area of the triangular region MBN

Proving that a quadrilateral is cyclic

Geometric proof that muliplication in the complex numbers $\mathbb C$ is commutative

Shortest halving line

Doubt about of isometries representation in $\mathbb{R}^{3}$

Finding orientation of a rectangle using the points sampled on its surface

Is there a name for this kind of functions? $f(x,y) = z \iff x=g(y,z)$.

In $\mathbb R^n$ prove $\{ y : |y| = R\} = \{ y : |y-x| = \frac{|x|}{R } | y - \bar{x} | \} $ where $|x| < R$ and $\bar{x}$ is the reflection of $x$

Let $ABC$ be a triangle with $AB > BC$ and $\gamma$ its circumscribed circle. Let $M, N$ be on the sides $[AB]$, $[BC]$, so that $AM = CN$.

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