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15
Math.TechQA.Club
2026-03-17 13:31:47
184
Views
Four coplanar points on a skew quadrilateral
Published on
17 Mar 2026 - 13:31
#geometry
#3d
590
Views
Matrix $A$ projects vectors orthogonally to the plane $y=z$. Find $A$.
Published on
20 Mar 2026 - 3:50
#linear-algebra
#matrices
#3d
#projection-matrices
68
Views
Coplanarity of 4 points with one of the points having a variable Z coordinate
Published on
25 Mar 2026 - 9:28
#geometry
#vectors
#3d
2.3k
Views
Volume of Octahedron in a Right Rectangular Prism (2015 AMC10B #17)
Published on
25 Mar 2026 - 7:15
#geometry
#contest-math
#3d
211
Views
Spherical coordinates to Cartesian coordinates with arbitrary origin for spherical coordinate system
Published on
23 Mar 2026 - 19:32
#geometry
#3d
#spherical-coordinates
31
Views
Finding equation of plane
Published on
16 Mar 2026 - 19:32
#3d
131
Views
Joining the centers of the edges of Platonic solids
Published on
24 Mar 2026 - 11:42
#geometry
#3d
#solid-geometry
#platonic-solids
242
Views
Does there always exist one plane onto which any two lines in $\Bbb{R}^3$ can be projected and intersect?
Published on
25 Mar 2026 - 12:53
#geometry
#vectors
#euclidean-geometry
#3d
4.7k
Views
Rotate around a specific point instead of 0,0,0
Published on
24 Mar 2026 - 15:29
#3d
#rotations
#isometry
#python
209
Views
Why is this not a valid proof of the Poincare Conjecture?
Published on
26 Mar 2026 - 8:04
#manifolds
#3d
#low-dimensional-topology
330
Views
Scaling the normal vector of a triangle
Published on
16 Mar 2026 - 23:37
#geometry
#euclidean-geometry
#3d
53
Views
HitTest - Calculate offset created by perspective.
Published on
25 Mar 2026 - 16:06
#trigonometry
#vectors
#3d
93
Views
How do you find the equation of a plane which is parallel to another plane which is at a unit distance of from some point
Published on
09 Feb 2018 - 13:48
#geometry
#3d
280
Views
3d rotation: why do rotations around some axis pull other axis with them, while others dont?
Published on
24 Mar 2026 - 20:36
#3d
#rotations
142
Views
How do I approximate a function in the form $z = f(x, y)$ of a real-life 3D surface?
Published on
25 Mar 2026 - 1:28
#calculus
#functions
#graphing-functions
#approximation
#3d
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