• Yesterday, 23:49
MarkFL replied to a thread Find 2 Numbers in Pre-Calculus
Yes, that's correct. (Yes)
2 replies | 17 view(s)
• Yesterday, 23:29
If I had to point my finger in any one direction, it would be at parents.
11 replies | 112 view(s)
• Yesterday, 21:33
The region $R$ is a rectangle having the vertices: (0,1),\,(1,1),\,(1,-1),\,(0,-1) One way we can compute the volume is: ...
4 replies | 54 view(s)
• Yesterday, 19:41
MarkFL replied to a thread logs in Pre-Algebra and Algebra
Okay, we are given: \ln\left(x-\frac{1}{x}-3\right)=2 Converting from logarithmic to exponential form, we have: x-\frac{1}{x}-3=e^2 ...
2 replies | 23 view(s)
• Yesterday, 15:26
As for the $\LaTeX$, look under the "Calculus/Analysis" section of our Quick $\LaTeX$ tool. You will find it, which gives the code: ...
4 replies | 54 view(s)
• Yesterday, 15:07
I would certainly agree that this is a problem. Standardized tests are only so valuable. Some of them are worth keeping, but it's never worth the...
11 replies | 112 view(s)
• Yesterday, 10:48
MarkFL replied to a thread The Fonz and Geometry in Chat Room
Yes, and I was just pointing out that there can be other reasons a student fails besides lack of innate ability to understand the material, or an...
5 replies | 65 view(s)
• Yesterday, 10:18
MarkFL replied to a thread The Fonz and Geometry in Chat Room
If a child's parents consistently put a child down, then I think this can have negative consequences on the child. I think there are a great many...
5 replies | 65 view(s)
• Yesterday, 09:20
I think everyone is capable of some capacity with numbers, and should attain what they can. (The same goes for words, of course.) I think some of the...
11 replies | 112 view(s)
• Yesterday, 09:14
Ackbach replied to a thread Solar Eclipse 2017 in Chat Room
It was a very fun event to witness. I took the afternoon off from work. While we did get, as Mark mentioned, about 92% coverage, it was quite enough...
8 replies | 234 view(s)
• August 22nd, 2017, 23:08
I disagree with this...I think it is the societal attitude that it's okay to fail at math that is part of the problem. Someone says to their friends,...
11 replies | 112 view(s)
• August 22nd, 2017, 22:23
If we have 2000 people, 300 of which are women, then the probability that all 300 women will be on the same team is given by: P(A)=\frac{{1700...
5 replies | 52 view(s)
• August 22nd, 2017, 22:01
I think your second method is correct. Suppose we call the teams $X$ and $Y$...and now we need only look at one team, so let's look at team $X$. If...
5 replies | 52 view(s)
• August 22nd, 2017, 19:04
MarkFL replied to a thread Solar Eclipse 2017 in Chat Room
Yesterday during the big event, we had pervasive heavy cloud cover and intermittent rain. Today, sunny and clear all day. Story of my life...(Giggle)
8 replies | 234 view(s)
• August 22nd, 2017, 09:12
Here is this week's POTW: ----- Let $n$ be an even positive integer. Write the numbers $1,2,\ldots,n^2$ in the squares of an $n\times n$ grid...
0 replies | 28 view(s)
• August 22nd, 2017, 09:11
Congratulations to MarkFL for his correct solution, which follows: I would consider the parabola: y=ax^2-1 where $0<a$ And given its...
1 replies | 82 view(s)
• August 21st, 2017, 23:30
Thanks Opalg ... but ... can you indicate how we prove that z_n \gt 1 ... ? Peter
4 replies | 70 view(s)
• August 21st, 2017, 12:26
Here is this week's POTW: ----- If a quadrilateral is circumscribed about a circle, prove that its diagonals and the two chords joining the...
0 replies | 38 view(s)
• August 21st, 2017, 12:22
Suppose \frac{3}{2}\le x \le 5. Prove that 2\sqrt{x+1}+\sqrt{2x-3}+\sqrt{15-3x}<2\sqrt{19}. Congratulations to MarkFL for his correct...
1 replies | 93 view(s)
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### 37 Visitor Messages

1. Happy birthday, caffeinemachine!
2. Yes caffeinemachine, I have a different solution of my own. I would have posted it along with johng's yesterday, but I was in a hurry, as I needed to get other things done. I might post it later today.
3. Thank you! It's been a bit hectic, what with moving to Kansas, and all. But I did have a great birthday.
4. Hi caffeinemachine. Very sorry that this is happening. Could you make a thread in our feedback forum describing what is happening when you get a moment? We will try to fix it ASAP.
5. My interests lie in dispersive wave equations and geometric analysis. You have a pretty interesting combination: combinatorics and geometry. So will you do combinatorial geometry or geometric combinatorics?
6. Hi caffeinemachine! I just wanted to wish you a happy birthday, and I hope you're having a great time.
7. Hey, just wanted to thank you. I didn't know the command \widehat existed until I saw you using it in your question about modules. Hope you get an answer, haha.

Best wishes.
8. Happy Birthday, my friend!
9. Hi AK,

I wish you luck, happiness, health and safety today, tomorrow and beyond...

As you look back on yesterday, may your memories be warm ones. As you celebrate today, may your heart be filled with happiness and joy. As you look ahead to tomorrow, may your deepest hopes and dreams come true for you!

I wish that for every extra candle on your cake, you receive an extra reason to smile. Happy Birthday to you!
10. Hi, I'm currently traveling but will get back to you later today. Thank you for your patience!
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#### Basic Information

Date of Birth
April 13, 1991 (26)
Biography:
I obtained a master's degree in mechanical engineering in May 2014.
Then I went on to join a master's programme in mathematics and obtained a master's degree in July 2016. I am currently a first year PhD student in mathematics. I love fountain pens and am a die hard fan of the Prince of Persia 2008 video game.
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