Jimmy C
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 Mar1 comment Using Lagrange multipliers to find shortest distance between two straight lines Thanks, but as @user84413 mentioned, it should be solved using Lagrange multipliers. Mar1 revised Using Lagrange multipliers to find shortest distance between two straight lines added current thoughts Mar1 asked Using Lagrange multipliers to find shortest distance between two straight lines Feb6 asked How closely does the sum of all rows in a matrix approximate the first eigenvector? Jan15 asked Does pointwise multiplication of two vectors have a geometric interpretation? Nov18 revised Is there a symmetric alternative to Kullback-Leibler divergence? added 1 character in body Nov18 asked Is there a symmetric alternative to Kullback-Leibler divergence? Oct10 asked What is the difference between multinomial and categorical distribution? Sep29 awarded Commentator Sep29 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! Sep24 awarded Autobiographer Sep7 awarded Yearling Aug19 accepted Linear transformations on vector spaces Aug19 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. Aug19 revised Let $T$ be multiplication by the matrix $A$ and find basis, kernel for the range of $T$ added 2 characters in body Aug19 asked Let $T$ be multiplication by the matrix $A$ and find basis, kernel for the range of $T$ Aug19 asked Linear transformations on vector spaces Aug17 awarded Nice Question Aug17 revised Is there an easy way to find the sign of the determinant of an orthogonal matrix? grammar Aug16 asked Is there an easy way to find the sign of the determinant of an orthogonal matrix?