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15
Math.TechQA.Club
2026-03-27 23:31:07
102
Views
Choosing normals for non-orientable surfaces
Published on
27 Mar 2026 - 23:31
#geometry
#euclidean-geometry
#3d
#plane-geometry
#orientation
88
Views
Elementary Geometry problem - Proving the angles $A'B'C'$ and $\beta$ are the same
Published on
31 Mar 2026 - 15:16
#geometry
#triangles
#circles
#plane-geometry
#tangent-line
75
Views
Angles of an ellipsoid intersecting a plane
Published on
25 Mar 2026 - 20:34
#plane-geometry
#angle
#intersection-theory
#ellipsoids
395
Views
Geometry with a circle from a Romanian contest
Published on
24 Apr 2021 - 21:11
#vectors
#euclidean-geometry
#plane-geometry
81
Views
Conditions on the halfspace $ax+by+cz>d$
Published on
29 Apr 2021 - 6:55
#geometry
#3d
#plane-geometry
239
Views
Geometry problem about proving midpoint using complex numbers
Published on
02 May 2021 - 7:48
#geometry
#complex-numbers
#euclidean-geometry
#circles
#plane-geometry
437
Views
Calculate 3D Rectangle from 4 projected points on screen
Published on
30 Mar 2026 - 23:10
#geometry
#vectors
#3d
#plane-geometry
#projection
37
Views
Linear algebra efficient way for inconsistent systems
Published on
04 May 2021 - 14:53
#calculus
#linear-algebra
#systems-of-equations
#plane-geometry
152
Views
Are there tessellations of the plane with curved $C^1$ shapes?
Published on
25 Mar 2026 - 23:10
#reference-request
#plane-geometry
#plane-curves
#tiling
#tessellations
208
Views
Find an equation for a plane parallel to a plane so that a point is equidistant to both planes.
Published on
08 May 2021 - 12:43
#linear-algebra
#geometry
#plane-geometry
141
Views
Can we almost cover any shape in the plane by disjoint/tangent disks of prescribed radii?
Published on
08 May 2021 - 15:09
#real-analysis
#measure-theory
#differential-geometry
#euclidean-geometry
#plane-geometry
298
Views
Show that if A*B*C and A*C*D, then B*C*D and A*B*D. ...With A*B*C meaning that B is between A and C...
Published on
12 May 2021 - 3:57
#geometry
#euclidean-geometry
#plane-geometry
79
Views
Four circles' intersections points cocircular?
Published on
12 May 2021 - 11:37
#plane-geometry
124
Views
Intersection Sphere - Plane
Published on
02 Apr 2026 - 3:10
#geometry
#circles
#plane-geometry
#spheres
65
Views
How to find the equation of the plane through two points and parallel to the line
Published on
15 May 2021 - 12:23
#linear-algebra
#plane-geometry
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