Mathematics
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darkmoor
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All Questions Answers
Score Newest
question
6
Can the same vector be an eigenvector of both $A$ and $A^T$?
Aug 21, 2016
question
4
Intuitive explanation of left- and right-inverse
Jan 1, 2016
question
4
Positive definite matrix product
Aug 23, 2013
question
4
If $\mathbf{ABC}$ non-singular prove that $\mathbf{A}$, $\mathbf{B}$ and $\mathbf{C}$ non-singular too
Nov 29, 2015
question
4
Optimal value in $\max_{x} \max_{y} f(x,y) = \max_{x,\ y} f(x,y)$
Nov 1, 2021
question
3
How do I take the derivative of $\text{trace}(XX^TY^TYXX^T)$ with respect to the matrix $X$?
Jul 19, 2021
question
3
Rank-1 matrix derivative
Jul 10, 2018
question
3
Show that Newton update in two variables converges
Nov 25, 2021
question
2
Proof of Hoeffding lemma
Apr 18
answer
2
show $\nabla f(\bar x) \geq 0$ and $\nabla f(\bar x)\bar x = 0$.
Aug 29, 2021

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