Top network posts

• 24 How is it that two electric currents can travel in opposite directions on the same wire, at the same time, without interfering with each other?
• 17 What is `S_ISREG()`, and what does it do?
• 14 "An affine space is nothing more than a vector space whose origin we try to forget about, by adding translations to the linear maps."
• 13 In the context of this quote, how many 'chips/sockets' do personal computers contain?
• 13 If one sends short bursts of electric current that abruptly turn on and off, why does the receiver receive a smoothed-out current?
• 13 Why/How does the determinant of the Hessian matrix, combined with the 2nd derivatives, tell us max., min., saddle points? Reasoning behind it?
• 12 What's the difference between interior and relative interior?
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