Problem when downloading ubuntu 14.04
How to use manual partitioning during installation?
$\sum_{n=1}^\infty \log \frac{n+1}{n}$  $\sum_{n=1}^\infty \log \frac{n+1}{n}$ =  $\displaystyle\lim_{n \to{+}\infty}(\log2 - \log1)+(\log3-\log2)+...+(\log(n+1)-\log n)$=$\displaystyle\lim_{n \to{+}\infty}\log(n+1)\to \infty$. So, the series diverges.  Is my procedure correct? Heartbleed: are services other than HTTPS affected? The OpenSSL 'heartbleed' vulnerability () affects webservers serving HTTPS. Other services also use OpenSSL. Are these services also vulnerable to heartbleed-like data leakage?  I'm thinking in particular of   sshd secure SMTP, IMAP etc -- dovecot, exim &amp; postfix VPN servers -- openvpn and friends   all of which, on my systems at least, are linked to the OpenSSL libraries. Omission of the indefinite article to eliminate ambiguity love between husband and wife   What is the reason that there is no article (e.g. "love between a husband and a wife") in the above? Has some kind of a rule been identified grammatically when it comes to such a case? If I were to guess I think it's because the indefinite article 'a', the purpose of that, is taking a generic sample (or 'instance') from a 'class' (the class of husbands), but in the above sentence you want to refer to the class itself... the husband class and the wife class... and not an 'instance' of them, because it just is more to the point. Do you think this is a fair reasoning? Also, a thought came to me that with the use of the indefinite article, you get a generic husband and a generic wife, which, may not necessarily love each other (for they are not a specific pair of a specific husband and a specific wife who in fact love each other). How to evaluate $\lim\limits_{n\to+\infty} \prod\limits_{k=1}^n (1+k/n^2)$? Do spice containers need to be hermetic? Does "the same number of people" behave as singular or plural? Data Recovery - How to Restore Deleted / Formatted Files on HD Micro SD Card Background:    I put in a friend's SD Card to format it because it was having problems. Then I put mine back in and I think my phone formatted my SD Card. I had a ton of pictures on there that are now gone! I put the card into the computer and there's only 2mb of cache files on there and none of the original directories.   I already tried the following freeware recovery applications:         Neither of them were able to retrieve any files. Undelete took 1minute to scan for files and came up with 0 files.  Recuva took 10 minutes for their "deep scan" which doesn't seem thorough enough at all for this 8GB SD Card. I need something that's a lot more heavy duty.  I don't mind paying for an application to get the data back if necessary...   Questions:     Which application can I use to recover my deleted picture files from my 8GB HD Micro SD Card?   Why did Anroid format my SD card?   How can I tell if it's a phone problem, data problem, or SD Card problem? I'm getting an error - didnt understand relationship when running this query in dev console. I have set the child relationship the lookup field to IncEvents. The lookup field is on the MyRule object -   select Id, Name, (select Id from IncEvents_r) from Namespace_MyRule__c  I noticed that the editor is displaying a single underscore between the namespace and the object name but I did enter a double underscore. Is there a printf converter to print in binary format? I can print with printf as a hex or octal number.  Is there a format tag to print as binary, or arbitrary base? I am running gcc. printf(&quot;%d %x %o\n&quot;, 10, 10, 10); //prints &quot;10 A 12\n&quot; print(&quot;%b\n&quot;, 10); // prints &quot;%b\n&quot; Counting lines, words, characters and top ten words? Neural networks output probability estimates? Suppose my training data contains ~100 variables, and each example is tagged as "success" or "failure".  I understand how a neural network can be used to try and predict success vs failure based on the variables.  However I am interested in the neural network outputting the posterior probability rather than success or failure. In fact, I evaluate the efficacy of the NN based on how accurate the probabilities are (eg. AUROC over the entire dataset) rather than % of cases with correct prediction.  Are NN's the right tool for the job here and if so how do you structure the NN to output this?  (NOTE: I'm a ML newbie!) In Harry Potter and the Cursed Child, why would anyone believe this rumor? From Harry Potter and the Cursed Child - Part I:     Scorpius Malfoy is talking with his best friend Albus Potter: SCORPIUS: So your dad thinks the rumors are true -- I am the son of Voldemort? ALBUS (nods): His department are currently investigating it. SCORPIUS: Good. Let them. Sometimes -- sometimes I find myself thinking -- maybe they're true too. ALBUS: No. They're not true. [...] Harry Potter and the Cursed Child, Part I - Act Two, Scene Sixteen, Hogwarts Library - Page 143 - Scholastic    Harry Potter and the Cursed Child picks up right at the point where Harry Potter and the Deathly Hallows leaves off, at the epilogue. It is nineteen years post-Hogwarts, and Scorpius Malfoy and Albus Potter are eleven-year-old first-years.   I'm about as good at math as J.K. Rowling (meaning I'm terrible at it!), so correct me if I'm wrong. Voldemort was killed at the Battle of Hogwarts in May of 1998. At least eight years post-Battle had to have passed before Albus and Scorpius were born (I'm estimating the boys were born in 2006). Voldemort would have had to have been alive in 2005/2006 in order to have ...      ... fathered Scorpius Malfoy.   As the wizarding world was fully aware of Voldemort's death in 1998, why would anyone even remotely believe that Voldemort is ...      ... Scorpius Malfoy's father?   I can understand the possibility of Harry believing the rumor because ...     ... his scar hurt, and his scar is Harry's connection to Voldemort.   But other than Harry, it doesn't make sense to me why anyone would believe such a ridiculous rumor. So, why? Claim: if $f$ is differentiable at $x = x_0$ then $f$ is continuous at $x = x_0$.   Please, see if I made some mistake in the proof below. I mention some theorems in the proof:   The condition to $f(x)$ be continuous at $x=x_0$ is $\lim\limits_{x\to x_0} f(x)=f(x_0)$.  (1) If $f(x)$ is differentiable at $x-x_0$, then $f'(x)=\lim\limits_{x\to x_0} \dfrac{f(x)-f(x_0)}{x-x_0}$ exists and the function is defined at $x=x_0$.   (2) Therefore, by the Limit Linearity Theorem, $\lim\limits_{x\to x_0} f(x)$ exists and we'll show it is equals $f(x_0)$.   (3) We'll do this by the Precise Limit Definion: given $ \epsilon&gt;0, \exists\delta|0&lt;|x-x_0|&lt;\delta$, then $0&lt;|f(x)-f(x_0)|&lt;\epsilon$. As this limit exists by (2), we can make $f(x)$ as close to  $f(x_0)$ as one wishes, therefore $\lim\limits_{x\to x_0} f(x)=f(x_0)$, what satisfies the condition for $f(x)$ be differentiable at  $x=x_0$. The end. How many 5-cards poker hands are there containing at least 3 of the 4 suits?  I don't how know how to properly handle this question.  There 13 ranks of each card, and 4 suits  My Attempt:  Begin with the first 3: C(13,3) X 4 ways to choose suits  Then pick last 3 cards of anything:  C(49,2)  My solution: 1,345,344  Thanks, Store pictures as files or in the database for a web app? My question is fairly generic and I know there might not be an 100% answer to it. I'm building an ASP .NET web solution that will include a lot of pictures and hopefully a fair amount of traffic. I do really want to achieve performance.  Should I save the pictures in the Database or on the File system? And regardless the answer I'm more interested in why choosing a specific way.  Many thanks, Stefan   DUPLICATE: , ,  and probably some others.    COMMENT: Thanks for many good answers. I will go for a file based solution even if I like the idea of having a 100% database driven solution. It seems that there are today good solutions to do what I want with databases etc but I have a few reasons for not doing it.   I will be on a hosted solution, I have huge amount of storage(10gb) but only 300mb for the database. It will cost a lot for extra storage in the DB. I'm not an DB expert and as well not in control of settings of the DB. A DB based solution might need custom configuration as it looks like.   If we will move to run the site on our own server I might consider a DB based solution. thanks, Stefan Showing that $A\cap B = A\setminus (A\setminus B)$ How does one show that $A\cap B = A\setminus (A\setminus B)$?  My thinking is that if $x\in A\setminus (A\setminus B)$ then this means that $x\in A$ and $x\notin A\setminus B$, which means that $x\in A$ and ($x\notin A$ and $x\in B$), but I don't see why the expression in parentheses should simplify to just $x\in B$. Any insight would be helpful.  Maybe $(x\in A^c$ and $x\in B)$, i.e, $x\in A^c\cap B$ is a possible simplification of the expression in parentheses, but still don't see why this simplifies to just $x\in B$. Prevent external devices being locked to launcher If I connect an external device (such as a USB stick or android smartphone) it will automatically open in nautilus and get a corresponding icon locked to unity launcher. Is there any way to prevent this?  I'm using Ubuntu 14.04 There are several algorithms to calculate distance between two latitude/longitude points.     Hubeny     But there are not so many algorithms (actually I can't finally find it) which can calculate latitude/longitude of point B from another latitude/longitude point A with bearing and distance.      I'm glad to know if there are any algorithms which is lesser accurate, but faster than Vincenty's formulae. I couldn't add defer tag in plugin javascripts. Google developer pagespeed test suggests me to add defer tag in contact form 7 javascripts.   This is how contact form 7 includes javascript in header.  add_action( 'wp_enqueue_scripts', 'wpcf7_enqueue_scripts' );  function wpcf7_enqueue_scripts() {     // jquery.form.js originally bundled with WordPress is out of date and deprecated     // so we need to deregister it and re-register the latest one     wp_deregister_script( 'jquery-form' );     wp_register_script( 'jquery-form', wpcf7_plugin_url( 'jquery.form.js' ),         array( 'jquery' ), '2.52', true );      $in_footer = true;     if ( 'header' === WPCF7_LOAD_JS )         $in_footer = false;      wp_enqueue_script( 'contact-form-7', wpcf7_plugin_url( 'scripts.js' ),         array( 'jquery', 'jquery-form' ), WPCF7_VERSION, $in_footer );      do_action( 'wpcf7_enqueue_scripts' ); }   Now how to add defer="defer" tag in the above code? Suppose I have this:   $\frac{6^{666}}{2^{6}}$ (mod $125$)  I saw it is possible to reduce only the numerator's power modulo Euler's phi function. Can someone explain why is that possible?  It is essentially this:   $\frac{6^{666 \space (mod \phi(125))}}{2^{6}}$ (mod $125$)