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robjohn
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  • Member for 13 years, 1 month
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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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answer
133
Should chat have TeX support?
Dec 6, 2011
question
132
General Moderation Strike: Mathematics StackExchange moderators are participating
Jun 6, 2023
question
118
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
43
Would a tag for "check-my-proof" questions be useful?
Nov 24, 2012
answer
42
MathJax: How to number and reference multiline equations?
Apr 8, 2014
answer
39
LaTeX symbols for "therefore" and "suchthat"
Jan 9, 2016
answer
37
A bad day at mathexchange ...
Sep 3, 2012
answer
31
I have ~7 accounts. Is this OK?
Feb 27, 2013
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655
How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$?
177
What's 4 times more likely than 80%?
151
Slice of pizza with no crust
147
How to prove that $\frac{\zeta(2) }{2}+\frac{\zeta (4)}{2^3}+\frac{\zeta (6)}{2^5}+\frac{\zeta (8)}{2^7}+\cdots=1$?
130
Parabola is an ellipse, but with one focal point at infinity