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Main user
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robjohn

the mean square The Mean Square
(with one standard deviation and several unusual ones)

aka Rob Johnson

$\LaTeX$ support for Chat

  • West Hills, CA
  • none
  • Member for 6 years, 11 months
  • 1 profile view
  • Last seen Jan 18 at 14:42

Communities (16)

  • Mathematics♦ 304.8k 304.8k 3232 gold badges375375 silver badges731731 bronze badges
  • Mathematica 839 839 55 silver badges1717 bronze badges
  • Meta Stack Exchange 654 654 55 silver badges88 bronze badges
  • Physics 366 366 11 silver badge1010 bronze badges
  • MathOverflow 231 231 11 silver badge44 bronze badges
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Top network posts

  • 566 How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$?
  • 176 What's 4 times more likely than 80%?
  • 142 Slice of pizza with no crust
  • 127 How to prove that $\frac{\zeta(2) }{2}+\frac{\zeta (4)}{2^3}+\frac{\zeta (6)}{2^5}+\frac{\zeta (8)}{2^7}+\cdots=1$?
  • 120 Parabola is an ellipse, but with one focal point at infinity
  • 107 How to sum this series for $\pi/2$ directly?
  • 83 Proving an alternating Euler sum: $\sum_{k=1}^{\infty} \frac{(-1)^{k+1} H_k}{k} = \frac{1}{2} \zeta(2) - \frac{1}{2} \log^2 2$
  • View more network posts →

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    Jul 30 '16

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