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15
Math.TechQA.Club
2026-04-15 23:49:31
48
Views
Why is it true that $x^{T}Ax=\sum_{i=1}^{n}\sum_{j=1}^{n}A_{ij}x_{i}x_{j}$
Published on
15 Apr 2026 - 23:49
#linear-algebra
#matrices
#vectors
63
Views
Partial derivative of product of complex matrices
Published on
13 Apr 2026 - 15:42
#vectors
#partial-derivative
#gradient-descent
45
Views
Find the projected ellipse on a plane from a given $3D$ ellipse
Published on
11 May 2026 - 5:28
#linear-algebra
#vectors
#analytic-geometry
#conic-sections
#quadrics
100
Views
In the plane there are given vectors $a, b, c, d, $, the sum of which is equal to $0$. Prove the inequality!
Published on
14 Apr 2026 - 7:45
#inequality
#vectors
#geometric-inequalities
53
Views
Conservative fields
Published on
10 Apr 2026 - 22:22
#vectors
170
Views
Generate N "equally spaced" vectors on the unit sphere
Published on
13 Apr 2026 - 6:43
#geometry
#trigonometry
#vectors
42
Views
Difference between $\mathbb{R}^n$ and $\mathbb{R}^{n_i}$
Published on
13 Apr 2026 - 12:41
#linear-algebra
#vector-spaces
#vectors
197
Views
I don't really understand the topic of direction angles in vectors
Published on
13 Apr 2026 - 15:43
#calculus
#vectors
#angle
46
Views
Cauchy-Schwarz inequality for summation of inner product
Published on
15 Apr 2026 - 19:04
#matrices
#vectors
#cauchy-schwarz-inequality
71
Views
Minimize covariance
Published on
12 Apr 2026 - 20:34
#vectors
#lagrange-multiplier
#covariance
24
Views
Line through two points of parallelepiped
Published on
11 Apr 2026 - 18:02
#geometry
#vectors
#analytic-geometry
25
Views
Norms of vectors in a equilateral triangle
Published on
13 Apr 2026 - 18:50
#vectors
#analytic-geometry
172
Views
Finding plane from from the projection of a line
Published on
11 Apr 2026 - 8:41
#vectors
#3d
#projection
18
Views
Proving orthogonality of successive iterates exact linesearch
Published on
03 May 2026 - 16:45
#derivatives
#vectors
#gradient-descent
81
Views
Finding the length of the orthogonal projection of a line segment onto a line
Published on
14 Apr 2026 - 17:21
#linear-algebra
#geometry
#vectors
#orthogonality
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