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robjohn
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  • Member for 14 years, 4 months
  • Last seen more than a month ago
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  • 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

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answer
135
Should chat have TeX support?
Dec 6, 2011
question
133
General Moderation Strike: Mathematics StackExchange moderators are participating
Jun 6, 2023
question
119
Main Chatroom Guidelines
Mar 29, 2012
answer
62
Someone with more rep than you is wrong?
Aug 23, 2014
answer
49
Answers with $0$ votes.
Jan 21, 2014
answer
45
LaTeX symbols for "therefore" and "suchthat"
Jan 9, 2016
answer
43
MathJax: How to number and reference multiline equations?
Apr 8, 2014
answer
43
Would a tag for "check-my-proof" questions be useful?
Nov 24, 2012
answer
37
A bad day at mathexchange ...
Sep 3, 2012
answer
34
I have ~7 accounts. Is this OK?
Feb 27, 2013

Top network posts

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670
How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$?
177
What's 4 times more likely than 80%?
154
Slice of pizza with no crust
153
How to prove that $\frac{\zeta(2) }{2}+\frac{\zeta (4)}{2^3}+\frac{\zeta (6)}{2^5}+\frac{\zeta (8)}{2^7}+\cdots=1$?
132
Parabola is an ellipse, but with one focal point at infinity