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• Today, 12:54
The scale along the $x$ line is not clear from the picture, so it is impossible to say whether this is the graph of $y=x/2+3$.
5 replies | 102 view(s)
• Today, 04:08
Your solution to the given IVP isn't correct...we are given: \d{y}{x}=9x^8e^{-x^9} where y(0)=8 \int_{y(0)}^{y(x)}\,du=\int_0^x...
1 replies | 47 view(s)
• Today, 02:00
Here is this week's POTW: ----- Let $(\mathcal{C}, \partial)$ be a chain complex of abelian groups. Suppose $f, g : \mathcal{C} \to \mathcal{C}$...
0 replies | 30 view(s)
• Today, 01:57
Hi MHB community, My apologies for the delayed post, I was unwell. No one answered this week's problem, but you can read my solution below. ...
1 replies | 95 view(s)
• Yesterday, 23:42
Hello, MHB Community! (Wave) We are pleased to announce a new method for embedding Desmos calculators in your posts, which we hope you will find...
0 replies | 46 view(s)
• Yesterday, 12:24
MarkFL replied to a thread [SOLVED] 9.1.14 Use Euler's method to calculate in Calculus
Given: \d{y}{x}=f(x,y) Euler's method is the recursion: y_{n+1}\approx y_{n}+\Delta x\cdot f\left(x_n,y_n\right) Now, in the given...
2 replies | 73 view(s)
• February 20th, 2017, 20:40
Hi MWD02! Welcome to MHB! ;) Even if $N$ would be an integer, for $N\ge 5$ this is a polynomial of at least the 5th degree with at least 3 terms,...
4 replies | 105 view(s)
• February 20th, 2017, 17:51
I like Serena replied to a thread Terminology in Analysis
The word canonical means the obvious (choice). For instance, if we start from a 3-dimensional coordinate system, and project the 3rd coordinate to...
3 replies | 85 view(s)
• February 20th, 2017, 14:41
caffeinemachine replied to a thread Terminology in Analysis
The word canonical is in my experience used rather loosely in mathematics and I suppose the best thing to do is not worry about it too much. On...
3 replies | 85 view(s)
• February 19th, 2017, 22:53
I do not see any problem with defining the notion of an irreducible in an arbitrary ring. Though we may not get any nice theorems concerning...
1 replies | 76 view(s)
• February 19th, 2017, 11:04
MarkFL replied to a thread Hi everyone! in Introductions
Hello and welcome to MHB, Raisa! (Wave)
3 replies | 81 view(s)
• February 19th, 2017, 10:02
caffeinemachine replied to a thread Hi everyone! in Introductions
Hey Raisa! I am currently a PhD student in mathematics, but I was also a mechanical engineering undergrad before I switched to math. I would say that...
3 replies | 81 view(s)
• February 19th, 2017, 06:01
If you are allowed to use the Heron's formula, then you can do the following. Let $AB=c$, $BC=a$ and $AC=b$. Then the area of the triangle is...
2 replies | 68 view(s)
• February 19th, 2017, 05:37
Welcome to the forum! I think the meaning of "parameter" is different in this context. This meaning is described in the article about parametrized...
1 replies | 52 view(s)
• February 18th, 2017, 20:12
Yes. $$= = = 1$$
3 replies | 65 view(s)
• February 18th, 2017, 19:34
Hi FallArk! The $$notation indicates the floor function. That is, rounding down to the nearest integer below x. Btw, I prefer the notation... 3 replies | 65 view(s) • February 18th, 2017, 18:23 Euge replied to a thread [SOLVED] How to prove continuity? in Analysis Yes. 4 replies | 76 view(s) • February 18th, 2017, 18:19 Euge replied to a thread [SOLVED] How to prove continuity? in Analysis It's a great idea, but for this argument to work, f(c) needs to be positive. It's possible to avoid cases by setting \epsilon = \frac12\lvert... 4 replies | 76 view(s) • February 18th, 2017, 17:49 I like Serena replied to a thread [SOLVED] How to prove continuity? in Analysis Hi FallArk! ;) Let's take the definition of continuity into account:$$\lim_{x\to c} f(x) = f(c) \ne 0 This means that for any $\epsilon>0$...
4 replies | 76 view(s)
• February 18th, 2017, 14:13
Evgeny.Makarov replied to a thread Jokes in Chat Room
One student claimed that \ln0=e. To prove it, he typed \ln and 0 on a calculator and got the answer e. Another student had to prove that...
155 replies | 17616 view(s)
• February 18th, 2017, 04:59
Joseph A. Gallian, in his book, "Contemporary Abstract Algebra" (Fifth Edition) defines an irreducible element in a domain as follows ... (he also...
1 replies | 76 view(s)
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### 16 Visitor Messages

1. 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.
3. 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.
4. 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.
5. I would try another browser...IE is notorious for being problematic.
6. Hello Peter,

No changes to composing posts have been made. What browser are you using? What OS?
7. Thank you for your kind words Peter, I really appreciate them. I'm always happy to help!
8. Hey Peter,

You attached 4 images, but only 3 of them were attached inline...I deleted the duplicate.

Best Regards,

Mark.
9. Hey Peter,

I am very sorry to hear that you had to undergo eye surgery, but I hope everything went well and that your recovery is complete and as speedy as possible.

Best Regards,

Mark.
10. Hey Peter,

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