mathjacks
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# 1,574 Reputation

5 May 25
 +5 09:02 upvote How many orthogonal $4 \times 4$ matrices $A$ are there with $0< |(a)_{ij}| \leq 1/2$.
12 May 16
 +2 19:10 accept How many orthogonal $4 \times 4$ matrices $A$ are there with $0< |(a)_{ij}| \leq 1/2$. +10 04:29 upvote How many orthogonal $4 \times 4$ matrices $A$ are there with $0< |(a)_{ij}| \leq 1/2$.
7 May 14
 +5 19:54 upvote Let $T$ be diagonalizable over $\mathbb{F}$. Show each projection $P_\lambda$ can be expressed as a polynomial of powers $T^j$. +2 19:08 accept Let $T$ be diagonalizable over $\mathbb{F}$. Show each projection $P_\lambda$ can be expressed as a polynomial of powers $T^j$.
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