@doraemonpaul: Please stop flooding the main page with many edits all at the same time. If you continue to edit tags, please limit yourself to only a few per day please.
And thanks for helping out. A question: do you know what happened to Ben Lim? I just noticed that his user seemed to have disappeared? (At least the link from a close banner is not worky).
I bought this book yesterday by REA on subject GRE mathematics and attempted a test today Got 51/66 questions correct which according to the book's scorecard is 770 and according to the practise test booklet of ets is 800.
My question is what kind of scores are considered strong (something that should be noted as above normal)??
@Matt I would rather have had regular votes for the reopen, but since there didn't seem to be anyone to vote, I was afraid that the questions would be lost, so I reopened them anyway.
@JayeshBadwaik And if you score at 80+ percentile, you would be, by definition, ¨above median¨ (which assuming a symmetric distribution would also be ¨above average¨).
@robjohn Sure. Btw, I voted on other questions. If you like you can check my activities tab and go through them, in case you want to reopen any of them.
@Matt Yeah - my first reaction was to laugh - but afterwards I felt guilty, as a work of art has probably been damaged beyond repair - the interview on TV with the "old bag" was also quite amusing
@Matt It was translated, but she seemed to be quite indignant. When asked why she did it without permission, she just said that everyone could see her doing it and nobody complained
@Matt Yeah - seemed a bit sudden - drove up this morning and there was a sign blocking the car park saying that the landlord has re-possessed the building
So I'm going for a walk - and just for a change, it is sunny (!!) here in the UK
@robjohn BTW we used to have some minor edits, too. I think Srivatsan used to go through posts and correct frequent typos sometimes. (Such as Cauchy-Schwartz.) But I agree that the front page is more frequently polluted by retags than by minor edits.
@robjohn The influx rate has been a tad overwhelming for quite a while now; I'd figure that fixing typos in two old posts every two hours or so would be reasonable, since they get buried in that amount of time...
@Matt She is doing quite fine. You'd never know that she had a broken pelvis. She's probably almost a year old. We found her Nov 5 of last year, and think she was about 8 weeks old.
@anon I've been thinking about the proof we were talking about a couple days ago and I wondered was there any real life situation where one would use such a logical structure?
Pretend you're Joseph in the New Testament. To prove: "Mary is cheating or has immaculately conceived." Either she is cheating or she isn't. If she is, then the claim is true. If she isn't, then must have gotten pregnant somehow and the only possibility is divine intervention, ie immaculate conception, and the claim also follows in this instance.
Then again I wouldn't call that real-life, but it was the first thing that came to mind.
that has "try" and "just might" in it, which involves qualifiers
After a couple friends hang over at your house you notice a prized Exodia card of yours missing, and it was there before they came over. Claim: "Friend A or friend B stole it." If friend A stole it then the claim is true, otherwise the only possibility is friend B in which case the claim is also true.
robjohn ran, was not originally elected (Eric Naslund and mixedmath were), and then became appointed (along with Bill D) after Zev and ? said they wanted to chill out for a bit.
who's Bill? i'm glad robjohn got the job. i think he's been helpful to me (a lot of you guys' names blur together, so i'm never quite sure who I've had what conversation with).
@hhh The $\bar{E}$ field alone never constitutes a wave. The wave is given by $\bar{S} = \bar{E} \times \bar{H}$ If you solve maxwell equations using the value of $\bar{E}$ you have taken, you will get $\bar{H} = \sin(kx-\omega t)\hat{k}$ and hence your wave will be in the $\bar{j} \times \bar{k} = \bar{i}$
@JohnSenior So what have you come up with? At first I thought of bounding it by Lebesgue measurable functions and something else from below but the bound was nowhere near tight enough. The next thing I thought of was to count all finite and countably infinite subsets of $[a,b]$. That would be the discontinuities we can remove.
@hhh Yes, more precisely $\bar{S} = \bar{E} \times \bar{H}$ right now the next thing is consider your example In your example only, I saw this $\bar E = E \cos(kx-wt) \hat{j}$
@hhh okay. then see if it has exercises. Waveguides are ideally a good application for understanding of maxwell's equation. Anyway, solve some, you will get the hang of it.
