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robjohn
  • Member for 10 years, 8 months
  • Last seen this week
  • West Hills, CA
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About

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

aka Rob Johnson

$\LaTeX$ support for Chat

ChatJax installer

Some of my astrophotos

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Top posts
All Questions Answers
Score Newest
question
39
MathJax CDN (cdn.mathjax.org) will be shutting down
Apr 1, 2017
answer
10
Amazon logo in oneboxed Amazon links is pixelated
Sep 26, 2013
answer
3
What's up with the gravatars?
Sep 26, 2015
question
1
Can't log in; chat.stackexcange.com won't recognize my OpenID
Aug 11, 2012
question
0
Can't log in to chat with OpenID and Firefox [duplicate]
Jul 27, 2013
Top network posts
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614
How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$?
176
What's 4 times more likely than 80%?
149
Slice of pizza with no crust
138
How to prove that $\frac{\zeta(2) }{2}+\frac{\zeta (4)}{2^3}+\frac{\zeta (6)}{2^5}+\frac{\zeta (8)}{2^7}+\cdots=1$?
125
Parabola is an ellipse, but with one focal point at infinity

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