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the_candyman

"An ounce of algebra is worth a ton of verbal argument"

J.B.S. Haldane

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35 Ways to write “50” Dec 10 '14
31 Is it acceptable to have a fraction in an eigenvector? Nov 30 '19
19 Is trace invariant under cyclic permutation with rectangular matrices? Dec 6 '12
19 On the invertibility of the adjacency matrix of a graph Mar 13 '15
18 Is there a clean way to write down this “product” of a vector and a matrix? Does it have any interpretation? Aug 28 '16
11 Why are natural numbers countable? Sep 6 '15
11 Chain rule and matrices - I'm confused Dec 17 '12
10 I found this odd relationship, $x^2 = \sum_\limits{k = 0}^{x-1} (2k + 1)$. Mar 3 '14
8 Find $\det(A^{2}+A^{T})$ when eigenvalues are $1,2,3$ Feb 14 '15
7 How to differentiate this negative power? Oct 23 '14
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