• 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, 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)
• 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, 18:46
topsquark replied to a thread Jokes in Chat Room
It's a rectangular number because you write it out by making a rectangle on the number pad... -Dan
216 replies | 33269 view(s)
• Yesterday, 17:46
Ackbach replied to a thread Jokes in Chat Room
Excellent!
216 replies | 33269 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, 06:55
Here's something to start you off. The axis of symmetry for the parabola y = ax^2 + bx + c is x = -\dfrac{b}{2a} and if an x-intercept is at (-2, 0)...
2 replies | 67 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 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, 11:04
Congratulations on a well-deserved promotion, steenis!
4 replies | 85 view(s)
• February 19th, 2019, 11:00
Here is this week's POTW: ----- If $x^2-x-1$ divides $ax^{17}+bx^{16}+1$ for integer $a$ and $b$, find the possible value of $a-b$. ----- ...
0 replies | 68 view(s)
• February 19th, 2019, 10:58
Congratulations to castor28 for his correct solution(Cool), which you can find below: There is an obvious solution $x=y=0$; furthermore, as the...
1 replies | 167 view(s)
• February 19th, 2019, 10:27
Congratulations, and welcome to the team! (Yes)
4 replies | 85 view(s)
• February 19th, 2019, 10:21
steenis has shown wonderful acumen in posting great math help, and so it is with great pleasure that we announce the awarding of the MHB Math Helper...
4 replies | 85 view(s)
• February 19th, 2019, 02:24
So. Why don't you tell us what you need help with? We aren't going to do your homework for you. -Dan
2 replies | 78 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)
• February 19th, 2019, 00:00
Let's try $$x=5$$: \sqrt{5-1}=5-7 2=-2 Is this true?
4 replies | 77 view(s)
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### 38 Visitor Messages

1. Hello and welcome back to MHB, mathmaniac!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

anemone.
2. Hello and welcome back to MHB, mathmaniac!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

MarkFL.
3. Hello and welcome back to MHB, mathmaniac!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

MarkFL.
4. LOL! Kind of obvious, eh?

But yes, I created a vBulletin product that will welcome new and returning members via visitor message, drawing randomly from a list of staff members who have signed on to be the authors of such messages.
5. Hello and welcome back to MHB, mathmaniac!

We are happy to see that you have returned, and we look forward to your continued participation here!

On Behalf Of MHB's Staff,

MarkFL.
6. Happy Birthday! Hope you had a nice one!
7. Thanks!
8. I live in the central part of Sri Lanka from the time I was born. Only the north and north eastern parts of Sri Lanka was heavily effected by the war. There was a risk of bomb explosions and terrorist attacks all around the country but we weren't in the war zone and weren't directly effected by the war.
9. I don't have much of a liking for exams too. But you know, they are there and will be there in times to come. If you are getting A's and A+'s for all your exams that should be thought of as a privilege at least. When I was in school, I rarely got good grades and most of the time I was the 22~27th in the class (out of about 30~36 students). The problem about this is that I was told by many people to study harder and achieve something better. So if you can achieve A's and A+'s effortlessly that is something to be quite happy about.

Yes, the war in Sri Lanka is completely over, which I think is a great thing indeed.
10. Why don't you think it's a big deal? But in a way, taking it casually is also great 'cause you'll not get pressurized by the feeling that you have to continue getting A+'s.
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