It's time once again to support your favorite open source project through our Free Vote-Based Advertising for Open Source Projects. . Here is your chance to create a . Create a graphical ad for an open source programming project and post it as an answer to this question (in the right format), and it will feed live remnant ads on Stack Overflow. Ad Requirements It must be an advertisement soliciting the participation and contribution of programmers writing actual source code. This is not intended as a general purpose ad for consumer products which just happen to be open source. It's for finding programmers who will help contribute code or other programmery things (documentation, code review, bug fixes, etc). Your ad should be an original creation which has not previously appeared on Stack Overflow. Please do not resubmit entries that have appeared as ads on Stack Overflow in previous periods. In order to work, the answers you post to this question must conform to the following rules. Answer Template  [![Tagline to show on mouseover][1]][2]        [1]: http://image-url   [2]: http://clickthrough-url   Please do not add anything else to the body of the post. If you want to add any commentary, keep it in the comments. Image requirements  The image that you create must be 220px by 220px Can be hosted anywhere (tinypic, twitpic, your blog); we will mirror the image locally when we serve it. Must be GIF or PNG No animated GIFs Absolute limit on file size of 150kb  The output, which ultimately will be served in an ad slot on Stack Overflow, can be previewed by clicking through to this URL:  There is a minimum score threshold an answer must meet (currently 6) before it will be served up by that URL and shown on Stack Overflow. You can see all the ads that currently make the threshold and meet our criteria on this page:  Ad Scroller (by ): I created a nifty little tool you can use to view the ads that have met the criterion already:
Possible Duplicate:    It's time once again to support your favorite open source project through our Free Vote-Based Advertising for Open Source Projects. We are clearing the leader boards to start the first half of 2011 anew. Here is your chance to create a . Create a graphical ad for an open source programming project and post it as an answer to this question (in the right format), and it will feed live remnant ads on Stack Overflow. Ad Requirements It must be an advertisement soliciting the participation and contribution of programmers writing actual source code. This is not intended as a general purpose ad for consumer products which just happen to be open source. It's for finding programmers who will help contribute code or other programmery things (documentation, code review, bug fixes, etc.). Your ad should be an original creation which has not previously appeared on Stack Overflow. Please do not resubmit entries that have appeared as ads on Stack Overflow in previous periods. In order to work, the answers you post to this question must conform to the following rules. Answer Template  [![Tagline to show on mouseover][1]][2]        [1]: http://image-url   [2]: http://clickthrough-url   Please do not add anything else to the body of the post. If you want to add any commentary, keep it in the comments. Image requirements  The image that you create must be 220 pixels by 250 pixels Can be hosted anywhere (tinypic, twitpic, your blog); we will mirror the image locally when we serve it. Must be GIF or PNG No animated GIFs Absolute limit on file size of 150 KB  The output, which ultimately will be served in an ad slot on Stack Overflow, can be previewed by clicking through to this URL:  Score Threshold There is a minimum score threshold an answer must meet (currently 6) before it will be served up by that URL and shown on Stack Overflow. You can see all the ads that currently make the threshold and meet our criteria on this page:  You can also view the ads that meet the threshold using 's
Keyboard Layout indicator doesn't display current layout in Ubuntu 18.04 (empty drop down box) I see an empty drop down box where the language code of the  should be.  To reproduce the bug: Lock screen or log out and log in again.    I also get the same behavior on the lock screen at the time when I try to log in with my password:    After I tried the workaround (below) the language code on the login screen disappeared as soon as I typed the first character of my password.  Workaround (not permanent): Switching with keyboard (Super+space) or mouse.  System info: Ubuntu 18.04.1 LTS, GNOME 3.28.2.    Please  if also affects you. Is the universe isomorphic to a universal turing machine? I often think about problems that require an understanding of the very essence of computation and its inherent limitations. So, my questions are as followed:   Is the universe isomorphic to a universal turing machine? Is the universe isomorphic to a universal quantum computer? What evidence do we have within our universe to support an answer to such a question? What corollaries follow from a universe that is or is not isomorphic to a universal turing machine (or universal quantum turing machine)? Is this question really answerable, and what is the current literature on this subject?   I'm mostly interested in the implications and corollaries that follow from a universe that is or is not isomorphic to a turing machine (or universal quantum computer) and the insights that it would provide us with, about the nature of computation. Combinatorics That Looks Similar to Vandermonde's Identity Are human chromosomes connected or separate molecules? Do the 46 human chromosomes form a single unbroken DNA helix?  Or is it rather that a human's genome consists of 46 disconnected helices?    If it is the former, does the common numbering scheme for the chromosomes have any correlation to their actual ordering in the one large strand?  If is the latter, is there a convention on how the chromosomes are ordered in genomic datasets?  Also, is there a clear understanding of how sister chromosomes "find" each other in Meiosis I?  Generally, during periods when Mitosis/Meiosis are not occurring,  what's a good physical picture for how the chromosomes are physically arranged (e.g. a bowl of 46 spaghetti noodles, or maybe the sister chromosomes always stay close together, etc)  thanks! Effect of linear terms on a QFT I was told when first learning QFT that linear terms in the Lagrangian are harmless and we can essentially just ignore them. However, I've recently seen in the linear sigma model, \begin{equation}  {\cal L} = \frac{1}{2} \partial _\mu \phi _i \partial ^\mu \phi _i - \frac{m ^2 }{2} \phi _i \phi _i  - \frac{ \lambda }{ 4} ( \phi _i \phi _i ) ^2  \end{equation}  with $m ^2 =-\mu^2 &gt; 0$, adding a linear term in one of the fields $\phi_N$, does change the final results as you no longer have Goldstone bosons (since the $O(N)$ symmetry is broken to begin with).   Are there any other effects of linear terms that we should keep in mind or is this the only exception of the "forget about linear terms" rule? $(K[x,y,z]/(x^2+y^3+z^7))_{(x,y,z)}$ is a UFD. The real fastest gun in the west Are the questions in the about page taken from real posts? If not, who designs them?  Particularly, why does this specific answer have a date from before the question was asked? Student t as mixture of gaussian Using the student t-distribution with $k &gt; 0$ degrees of freedom, location parameter $l$ and scale parameter $s$ having density  $$\frac{\Gamma \left(\frac{k+1}{2}\right)}{\Gamma\left(\frac{k}{2}\sqrt{k \pi s^2}\right)} \left\{ 1 + k^{-1}\left( \frac{x-l}{s}\right)\right\}^{-(k+1)/2},$$  how to show that the Student $t$-distribution can be written as a mixture of Gaussian distributions by letting $X\sim N(\mu,\sigma^2)$, $\tau = 1/\sigma^2\sim\Gamma(\alpha,\beta)$, and integrating the joint density $f(x,\tau|\mu)$ to get the marginal density $f(x|\mu)$? What are the parameters of the resulting $t$-distribution, as functions of $\mu,\alpha,\beta$?  I got lost in calculus by integrating the joint conditional density with the Gamma distribution. Definition of electric charge and proper explanation Why isn't Jon executed on sight? So, to get spoilers out of the way -       Jon Snow is too honorable to break his oath and leave the Night's Watch.  However, he is stabbed a bunch, dies, and due to a line in the Night's Watch oath - "It shall not end until my death" - is able to leave without his usual reservation.   Now, this is fine from Jon's perspective.  However, there is a fairly rigid law about the Wall's deserters being punished by death. Which makes me wonder: why isn't Jon having more trouble with this?   He knows what happened, but others don't.  And the explanation that he actually did die doesn't seem like one the lands' lords and authorities would take on faith.  I know I wouldn't.  His story isn't quite like Sam's, who was sent by the Night's Watch to become a maester.  Jon is famous enough that many would know who he is, and that he has taken the black.  But a story like him dying and coming back to life is probably one that takes quite a but of time to stick - if it ever does.  A possible explanation might be that people know Jon is honorable and trust him. Or that they don't care about the law, and think that they can somehow benefit from not executing him - although the law seems to be a strict one, and not everyone seems to be psyched to help Jon out.  Or maybe by that time people coming back to life is a common enough thing that people believe it that easily.  Speculation aside, however, I am curious whether this was directly addressed from the higher-ups - the makers of the show, or the big boss himself.  Why isn't Jon executed on sight? I am trying to figure out this:  c = 1 def f(n):     print c + n  def g(n):     c = c + n  f(1) # =&gt; 2 g(1) # =&gt; UnboundLocalError: local variable 'c' referenced before assignment   Thanks! I faced with a problem after update,   I missed 2 buttons from above panel, System menu (including shutdown, suspend &amp; …) and User (including log out &amp; …)  how can I restore them !?... How to "add existing frameworks" in Xcode 4? This question is a bit more subjective, but I'm hoping to get some new perspective.  I'm so used to designing for certain screen size (typically 1024x768) that I find that size to not be a problem.  Expanding the size to 1280x1024 doesn't buy you enough screen real estate to make an appreciable difference, but will give me a little more breathing room.  Basically, I just expand my "grid size" and the same basic design for the slightly smaller screen still works.  However, in the last couple of projects, my clients were all using 1080p (1920x1080) screens and they wanted solutions to use as much of that real estate as possible.  1920 pixels across provides just under twice the width I am used to, and the widescreen makes some of my old go to design approaches not to work as well.  The problem I'm running into is that when presented with so much space, I'm confronted with some major problems.   How many columns should I use?  The wide-format lends itself to a 3 column split with a 2:1:1 split (i.e. the content column bigger than the other two).  However, if I go with three columns what do I do with that extra column? How do I make efficient use of the screen real estate?  There's a temptation to put everything on the screen at once, but too much information actually makes the application harder to use.  White space is important to help make sense of complex information, but too much makes related concepts look too separate. I'm usually working with web applications that have complex data, and visualization and presentation is key to making sense of the raw data.  When your user also has a large screen (at least 24"), some information is out of eyesight and you need to move the pointer a long distance. How do you make sure everything that's needed stays within the visual hot points? Simple sites like blogs actually do better when the width is constrained, which results in a lot of wasted real estate.  I kind of wonder if having the text box and the text preview side by side would be a big benefit for the admin side of that type of screen? (1:1 two-column split).   For your answers, I know almost everything in the design is "it depends".  What I'm looking for is:   General principles you use How your approach to design has changed   I'm finding that I have to retrain myself how to work with this different format.  Every bump in the resolution I've worked through to date has been about 25%: 640 to 800 (25% increase), 800 to 1024 (28% increase), and 1024 to 1280 (25% increase).  However, the jump from 1280 to 1920 is a good 50% increase in space--the equivalent from jumping from 640 straight to 1024.  There was no commonly used middle size to help learn lessons more gradually.    To help focus the question a little bit, I had a project that was somewhat similar to Atlassian JIRA, an issue management system.  There were about six different types of records the client wanted to keep, all of them could potentially be related to each other.  Gathering data wasn't the core problem, although it did play a part.  The more important side of the problem was creating a system which would suggest potential relationships between the records and helped the analysts recognize patterns in the reported incidents.  There were different types of analysts that focused on the different problem domains, and due to the nature of their exploratory type of work, they didn't know what they wanted.  They just knew they had to make sense of a lot of data, draw correlations, and characterize classes of issues.    (Originally asked here: , but told that this might be more appropriate)    For the bounty: Stretch your minds a bit.  The pat answer "Make everything bigger" has a limit to how useful the answer is.  We are talking about users who have to make sense of a lot of data and find relationships between records.  If I simply bump up the size on everything they are going to be very limited in what they can see on the screen--particularly because the vertical is so constrained. Why should the "H" option not be used in floats? Horizontal line of custom length like an — How should I calculate $\lim_{n\rightarrow \infty} \frac{1^n+2^n+3^n+...+n^n}{n^n}$ How should I calculate the below limit  $$\lim_{n\rightarrow \infty} \frac{1^n+2^n+3^n+...+n^n}{n^n}$$ I have no idea where to start from. My  objective is to classify sensor signals.  The concept of my solution so far is : i) Engineering features from raw signal ii) Selecting relevant features with ReliefF and a clustering approach iii) Apply N.N, Random Forest and SVM  However I am trapped in a dilemma. In ii) and iii), there are hyperparameters like k-Nearest Neigbours for ReliefF or the window length, for which the sensor signal is evaluated, or the number of hidden units in each layer of N.N.  There are 3 Problems I see here : 1) Tuning feature selection parameters will influence the classifier performance 2) Optimizing hyperparameters of classifier will influence the choice of features. 3) Evaluating each possible combination of configuration is intractable.  So my questions are : a) Can I make a simplifying assumption, s.t. tuning feature selection parameters can be decoupled from tuning classifier parameters ? b) Are there any other possible solutions ? I'm starting out in Visual C++ and I'd like to know how to keep the console window.  For instance this would be a typical "hello world" application:   int _tmain(int argc, _TCHAR* argv[]) {     cout &lt;&lt; "Hello World";     return 0; }   What's the line I'm missing? Can I mix monk traditions? I'm wanting to mix archetypes (traditions) for my monk. I'm wanting specifically the 3rd and 17th level feats from Way of the Open Fist and the 6th and 11th level feats from the Way of the Shadows. I know we can't multiclass into the same class to gain both but in the PHB page 79 2nd column "Monastic Traditions" reads "Three traditions of monastic pursuit are in common in the monasteries scattered across the multiverse." I'm fine with that but where I question is "Most monasteries practice one tradition exclusively, but a few honor the three traditions and instruct each monk according to his or her aptitude and interest."   So my question would be can I build a monk that is split like that without homebrewing to much?