Top network posts
- 20 Inner product on $C(\mathbb R)$
- 19 What's in my pocket?
- 18 Prime number snake (2)
- 17 Knights attacking exactly three knights
- 12 Using the Bolzano's theorem to prove that exists only one solution in the interval.
- 12 How to show that $A^2=AB+BA$ implies $\det(AB-BA)=0$ for $3\times3$ matrices?
- 12 Ensuring that a symmetric matrix with nonnegative elements is positive semidefinite
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