How to prove aff(A)=aff(clA) ?
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Verify the set [(x,t)€R^n×R| t>=||x|| ] is closed and convex?
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Can you help me the exercise 1.10?
In mathematics, real analysis is the branch of mathematical analysis that studies the behavior of real numbers, sequences and series of real numbers, and real-valued functions. -Wikipedia
Normed ||x-a||^2 is convex function on R^n? Where a€ R^n?
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I was rejected by girls many times. Is the problem with my appearance? How can I look better?
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I am go balding, What should I do?
Hair advice
what does definition 3.1 mean?
r/mathematics is a subreddit dedicated to focused questions and discussion concerning mathematics.