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Jun
9
revised Calculate pairwise cosine distance only returning the lower triangular matrix
edited tags
Jun
9
comment Calculate pairwise cosine distance only returning the lower triangular matrix
@Paul I updated the question to make it a bit more clear that I'm looking for an alternative cosine calculation that would only calculate the lower triangular matrix rather than the full symmetric matrix.
Jun
9
revised Calculate pairwise cosine distance only returning the lower triangular matrix
added 52 characters in body
Jun
9
comment Calculate pairwise cosine distance only returning the lower triangular matrix
@Paul I thought about whether this was a programming or math question, but since it is more about the method of calculation than the implementation, I was thinking it was indeed more of a math question. Do you disagree?
Jun
9
asked Calculate pairwise cosine distance only returning the lower triangular matrix
Apr
23
accepted Is there an easy way to find the sign of the determinant of an orthogonal matrix?
Mar
1
comment Using Lagrange multipliers to find shortest distance between two straight lines
Thanks, but as @user84413 mentioned, it should be solved using Lagrange multipliers.
Mar
1
revised Using Lagrange multipliers to find shortest distance between two straight lines
added current thoughts
Mar
1
asked Using Lagrange multipliers to find shortest distance between two straight lines
Feb
6
asked How closely does the sum of all rows in a matrix approximate the first eigenvector?
Jan
15
asked Does pointwise multiplication of two vectors have a geometric interpretation?
Nov
18
revised Is there a symmetric alternative to Kullback-Leibler divergence?
added 1 character in body
Nov
18
asked Is there a symmetric alternative to Kullback-Leibler divergence?
Oct
10
asked What is the difference between multinomial and categorical distribution?
Sep
29
awarded  Commentator
Sep
29
comment How can I show that $\begin{pmatrix} 1 & 1 \\ 0 & 1\end{pmatrix}^n = \begin{pmatrix} 1 & n \\ 0 & 1\end{pmatrix}$?
This was rather enlightning, thanks for such a late answer!
Sep
24
awarded  Autobiographer
Sep
7
awarded  Yearling
Aug
19
accepted Linear transformations on vector spaces
Aug
19
comment Let $T$ be multiplication by the matrix $A$ and find basis, kernel for the range of $T$
@AmitaiYuval Yes, I'm positive. It's 8.1.25 in Elementary Linear Algebra by Anton and Rorres, 10th edition. Unfortunately I cannot find an errata online to verify this.