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• Today, 03:42
Hi Hugo ... Thanks again for your help ... Hope that despite the heat, you enjoy your holiday ... It gets hot down here sometimes ... even...
7 replies | 109 view(s)
• Today, 03:31
Trying Steenis' idea ... Practice values for first statement in the proof of Theorem 12.9 in Browder ... ... that is practice values for n...
3 replies | 91 view(s)
• Today, 03:12
I understand your hesitation. Right now, I am on holidays in Saigon, Vietnam. I have time to follow MHB, but I have trouble focusing. What do you...
7 replies | 109 view(s)
• Today, 02:23
Thanks for such a clear and honest post, Hugo ... Still reflecting on your new answer to the issue ... Does anyone else have an answer ...?
7 replies | 109 view(s)
• Today, 02:05
Q1: that is correct Q2: I understand what you mean regarding the parenthess and I tried to give an answer in that direction. But I was not happy...
7 replies | 109 view(s)
• Today, 00:24
Hi joypav, The result your advisor mentioned is the Riesz representation theorem. There are many books, websites, and papers that you can look to...
1 replies | 35 view(s)
• Yesterday, 23:43
Thanks Steenis ... your post really got me thinking ... Yes ... important point that ... ... " ... By definition 12.8, you can only multiply two...
7 replies | 109 view(s)
• Yesterday, 22:22
Here's a link to a Desmos slope field for this ODE: https://www.desmos.com/calculator/my0rwuxl5x
3 replies | 71 view(s)
• Yesterday, 18:39
Olinguito replied to a thread Jokes in Chat Room
Such a number is a cyclic permutation of $\overline{abcd}$ where $$a\ =\ a \\ b\ =\ a+k \\ c=a+k+l \\ d=a+l$$ where $a$ is the bottom-left digit...
216 replies | 33267 view(s)
• Yesterday, 15:22
You are right. Since $\arctan(-x)=-\arctan(x)$, it is easy to see that $|x_n|=y_n$ for all $n$. You are also right that $y_n$ is decreasing....
1 replies | 61 view(s)
• Yesterday, 14:58
Evgeny.Makarov replied to a thread Jokes in Chat Room
I would say that the distance between opposite vertices in a rectangle is the diameter. This terminology is used in graph theory. Professor: What...
216 replies | 33267 view(s)
• Yesterday, 01:37
By definition 12.8, you can only multiply two tensors. If you want to multiply 3 tensors, $\alpha \otimes \beta \otimes \gamma$, the trick is to...
7 replies | 109 view(s)
• Yesterday, 00:37
When you determine your integrating factor, you need only determine up to but not including the constant of integration: ...
3 replies | 71 view(s)
• February 20th, 2019, 07:21
Looks great to me. Nicely done!
7 replies | 109 view(s)
• February 20th, 2019, 03:31
Hi Tan Tom, welcome to MHB! ;) If I understand correctly, you have $$(1-2j)e^{j\frac\pi 2 n} +a_3 e ^ {-(j\frac\pi 2n)} + 3 + (-1)^{n+1}=sum$$...
1 replies | 58 view(s)
• February 20th, 2019, 00:25
THanks Steenis ... Good idea ... Peter
3 replies | 91 view(s)
• February 20th, 2019, 00:16
Maybe it is an idea to practice first with $$n=1, r=1$$ then $$n=2, r=1$$ $$n=2, r=2$$ $$n=3, r=1$$ $$n=3, r=2$$ $$n=7, r=3$$ and so on
3 replies | 91 view(s)
• February 19th, 2019, 21:44
I am reading Andrew Browder's book: "Mathematical Analysis: An Introduction" ... ... I am currently reading Chapter 12: Multilinear Algebra ......
7 replies | 109 view(s)
• February 19th, 2019, 20:32
There are some typos/issues with your work. See if you can spot them...:)
4 replies | 84 view(s)
• February 19th, 2019, 20:03
Yep. (Nod)
9 replies | 150 view(s)
• February 19th, 2019, 18:40
Correct. (Nod)
9 replies | 150 view(s)
• February 19th, 2019, 17:48
We have the property that the product of an invertible matrix with another matrix has the same rank as that other matrix. Can we prove that...
9 replies | 150 view(s)
• February 19th, 2019, 15:45
Congratulations! :cool:
4 replies | 85 view(s)
• February 19th, 2019, 15:41
Okay, if we are to consider a solution of the form: y=t^r Then: y'=rt^{r-1} y''=r(r-1)t^{r-2}
4 replies | 84 view(s)
• February 19th, 2019, 10:27
Congratulations, and welcome to the team! (Yes)
4 replies | 85 view(s)
• February 19th, 2019, 06:51
Hi, and welcome to the forum. Can you figure out the initial position (height above the ground) of the minute hand tip at 10 a.m.? Also, do you...
1 replies | 54 view(s)
• February 19th, 2019, 01:56
I am reading Andrew Browder's book: "Mathematical Analysis: An Introduction" ... ... I am currently reading Chapter 12: Multilinear Algebra ......
3 replies | 91 view(s)
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### 20 Visitor Messages

1. Hi Peter,

Thank you for pointing this out to me. I will talk it over with the staff.

In the future there is a "report" button for posts which will create a thread in the staff forum for us to review. This is just for your convenience and to keep things less public if you like. I don't mind you reaching out to me in any way that you like.

Best,
Jameson
2. Hello Peter,

When I first saw that post, I saw that Adrian (Ackbach) had replied to it, so I didn't think much about it. The user to whom Wilmer was addressing his post was already on staff radar as being a potential spammer. Wilmer's posting demeanor can be a bit rough sometimes, but he means no harm as far as I can tell.
3. Sometimes editing a thread title is an issue, but the issue is with vBulletin. If you ever want to change a thread title, and can't, just let me know and I can fix it.
4. Hey Peter!

I edited your post to remove the duplicate content. Sorry for the late reply, I was busy "powering through" a tedious 3 hour project.
5. Glad to hear that resolved the issue! I thought perhaps forcing your browser to reload the script by removing it from your cache might do the trick.
7. Hey Peter,

No, there have been no changes in that regard, at least that I know of. Do you visit any other sites that use MathJax? If so does it render there?

Best Regards,

Mark.
8. Good deal, Peter! I wish I had a nickel for every time a problem is corrected by ditching IE and using a modern standards compliant browser.
9. I would try another browser...IE is notorious for being problematic.
10. Hello Peter,

No changes to composing posts have been made. What browser are you using? What OS?
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