• April 19th, 2017, 12:21
Ackbach replied to a thread Love equation in Chat Room
I've read that book. I'm currently re-reading it, in fact. I thought it was tremendously good. It's not really about romantic love, but much more...
8 replies | 171 view(s)
• April 18th, 2017, 20:06
There is a neat site called Kaggle that is home to lots of data science info and the place of very featured competitions with large cash prizes. The...
3 replies | 92 view(s)
• April 17th, 2017, 20:26
Here is this week's POTW: ----- Let $A$ be a positive real number. What are the possible values of $\displaystyle\sum_{j=0}^\infty x_j^2$,...
0 replies | 63 view(s)
• April 17th, 2017, 20:20
Congratulations to Opalg for his correct solution, which follows: Let $\omega = e^{2\pi i/n}$ and define $n\times n$ matrices $\Omega,... 1 replies | 101 view(s) • April 10th, 2017, 22:15 Here is this week's POTW, shamefully late. I can only say I will promise to do better in the next few weeks, and even try to catch up with the missed... 1 replies | 101 view(s) • April 10th, 2017, 22:11 No one answered this week's POTW correctly. The solution follows: (based on work by Daniel Stronger) We make repeated use of the following fact:... 1 replies | 130 view(s) • April 10th, 2017, 18:35 Jameson replied to a thread Most ever users in Chat Room I like it! It's Spring Break time around the US now so even better to happen during a lull. :) 1 replies | 94 view(s) • April 10th, 2017, 11:01 Opalg started a thread Most ever users in Chat Room I have been seeing this on the MHB front page for two and a half years. But today it looks different! 1 replies | 94 view(s) • April 9th, 2017, 21:59 I would say he is a very smart guy who had great timing with his idea. In 2006 the internet was changing fast and those who could look forward to the... 2 replies | 122 view(s) • April 8th, 2017, 09:44 Opalg replied to a thread Area calculation in Calculus The first plot correctly shows the graph of the function$-50e^{-5x}$, which is always negative as$x$goes from$0$to$1$. The second plot does... 4 replies | 150 view(s) • April 7th, 2017, 04:03 Hi Aychetown and welcome to MHB! In this problem, you are probably meant to start from the fact that \lim_{x\to0}\frac{\sin x}x = 1. If you... 1 replies | 80 view(s) • April 5th, 2017, 10:42 The entries on the main diagonal of$D$are the eigenvalues of$A$. All the other entries in$D$are zeros. When you wrote down the matrix$P$,... 2 replies | 81 view(s) • April 5th, 2017, 10:39 Ackbach replied to a thread Double Integrals in Calculus What Prove It was trying to say above is that it makes no difference, because the region over which you are integrating is rectangular. If you have a... 9 replies | 226 view(s) • April 3rd, 2017, 13:02 johng has shown his worth in answering many questions at a high level, and of great variety. It is with pleasure, therefore, that we announce the... 5 replies | 194 view(s) • April 3rd, 2017, 09:32 Nah. At work. My colleague has an old desktop he doesn't care about - it's just new enough to be 64-bit, which is important. I've installed RHEL 7 on... 2 replies | 113 view(s) • April 3rd, 2017, 04:02 Opalg replied to a thread Rectangles and Squares in Geometry For a parallelogram with sides$a$and$b$and area$A$, you could use the measure$\dfrac{4A}{(a+b)^2}$. That will be$1$if the parallelogram is a... 3 replies | 111 view(s) • March 30th, 2017, 07:35 Sorry, my mistake. I should have written 3.39.38.13 there (I have now corrected it). The idea is that if you want just one of the three cards to be a... 5 replies | 156 view(s) • March 30th, 2017, 04:24 If a point lies on the$y$-axis then its$x$-coordinate is$0$. If you put$x=0$in the equation of the circle then it becomes$y^2 + 2y + 17 = 0.$... 2 replies | 74 view(s) • March 30th, 2017, 04:19 Yes! Write the equation in the form$(x^2 - 10x +\ ?) + (y^2 + 2y +\ ?) =\ ?\$ (choosing the queries so as to complete the squares), and you should...
2 replies | 89 view(s)
• March 30th, 2017, 04:10
I am not entirely sure that I understand the question. But I think that it is asking for the probabilities for drawing 0, 1, 2 or 3 spades. Let...
5 replies | 156 view(s)
• March 29th, 2017, 18:30
Hi there, So a probability distribution is a function of some kind of input parameter(s). Are you asking what is the probability of drawing three...
5 replies | 156 view(s)
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So why should it be different when it comes to religulous matters?
melese
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