Top network posts

• 22 Inner product on $C(\mathbb R)$
• 18 Is every Hilbert space separable?
• 18 Prime number snake (2)
• 17 Knights attacking exactly three knights
• 15 Is KKT conditions necessary and sufficient for any convex problems?
• 14 Orthogonal Projection of $ z $ onto the Affine set $ \left\{ x \mid A x = b \right\} $
• 13 Ensuring that a symmetric matrix with nonnegative elements is positive semidefinite
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