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• 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 | 33267 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, 17:46
Ackbach replied to a thread Jokes in Chat Room
Excellent!
216 replies | 33267 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, 14:53
masters replied to a thread Riddle in Chat Room
Because it needs a CosR Sin2R = 2SinR*CosR
2 replies | 560 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 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 | 66 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 | 166 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, 00:00
Let's try $$x=5$$: \sqrt{5-1}=5-7 2=-2 Is this true?
4 replies | 77 view(s)
• February 18th, 2019, 23:57
Overview: This product is designed to allow you to specify which usergroups will have access to the user ignore system. Users who are not a member...
0 replies | 49 view(s)
• February 18th, 2019, 22:42
What do you get when you substitute each potential solution into the original equation?
4 replies | 77 view(s)
• February 18th, 2019, 20:22
MarkFL replied to a thread Starred Posts in vBulletin Products
I've installed this product on many vB sites without issue. As I said in another thread, I really recommend that you upgrade your vB. It's very old....
4 replies | 770 view(s)
• February 18th, 2019, 20:18
MarkFL replied to a thread Forum Marquee in vBulletin Products
Please send me the login credentials by PM to an admin account on your site, and I will see if I can figure out what the issue on your site is. You...
2 replies | 569 view(s)
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### 209 Visitor Messages

1. Hello and thank you!
I posted a question on freemathhelp dot com which I am finding challenging. I was going to post here as well but the site looks similar. I don't want to re-post if it is the same community. Should I proceed and repost the question here?
Thanks
2. Thanks Jameson!
3. I remember thanking a post by Mark on trigonometry about how to evaluate the cosine or sine of a certain angle with plans of revisiting it later. In going over my profile, I just realized that there is no tab that allow me to view that thanked "bookmark". Is this really the case?
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Thanks for the welcome! Much appreciated.

I do have a question actually: I would like to post a mathematical problem that I have encountered at work - a "real life" problem as such. Would this be the right forum to do so? And under which thread would you recommend I post it?

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RdM
5. i do have a question about cantilever beam maximum deflection and graph making using derivatives.
6. Hi Jameson. I've got a question and I'm not sure which category it would be in it's quite the question
7. Thanks. I am an engineer with some rusty calculus skills and am struggling with an integral problem that I intend to post. I have never used Latex. Is there a way to preview my function somehow? I see the dialog that says it is previewing it but it looks the same way there.
8. Hello I would like to know if you can help me with a math problem. It is not allowing me to post it.
9. Thanks Jameson,

Peter
10. Hi Jameson,

In the Introduction to leesajohnson we find the following post by Wilmer ...

Peter, you've made 7 posts, all useless...

Is this sort of abusive post acceptable?

Peter
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