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• What modern alternatives to Numerical Recipes exist?

  - by Stewart

  In the past, the Numerical Recipes book was considered the gold standard reference for numerical algorithms. The earliest Fortran Edition was followed by editions in C and C++ and others, bringing it then more up-to-date. Through these, it provided reference code for the state-of-the-art algorithms of the day. Older editions are available online for free nowadays. Unfortunately, I think it is now mostly useful only as a historic tome. The "software engineering" practises seem to me to be outdated, and the actual content hasn't kept pace with the literature. What comprehensive yet approachable references should the modern programmer look at instead?

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• Google Analytics goal funnel does not recognize virtual page views

  - by Webber Smith

  I have a setup wizard with 3 steps. Since I'm using AJAX each step uses a virtual pageview with an appropriate URL for each step (see below). The pageviews are being recorded in the Content section of Google Analytics but the Goal Funnel still shows zero for each step. I've tried advise on other forums such as... Make sure Goal URL is set to Exact match Make sure no steps or the Goal URL are a parent directory of any other steps. For example, don't track /wizard/ as a Goal/step and track /wizard/step2/. Not sure why this would be a problem since it is an exact match, but it shouldn't hurt so I tried it... Require (or don't require - tried both) the first step in the funnel ...but none of these seem to work. Thoughts? Goal Settings Exact match : "/wizard/setup-complete/" Funnel Step 1 : "/wizard/step1/" Step 2 : "/wizard/step2/" Step 3 : "/wizard/step3/"

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• Should I have link rel=next & prev on URLs which have query variables?

  - by user21100

  For example, I have link rel prev & next set up on these pages of products: site.com?page=2 site.com?page=3 (this is my preferred structure by the way and I'm trying to get all the ugly URLs which are littered with query variables deindexed as they are causing duplicate content). So the above URLs are fine but once a filter to narrow product results is selected, like "price", the URL shows like this: site.com?price[1000-1499]=on site.com?page=2&price[1000-1499]=on As of right now, I am having the link rel prev & next dynamically added to the header of these pages but since I am working on getting these query variable URLs pages deindexed, I am wondering if I should get rid of it on these pages? Any thoughts?

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• Where to prepare (legal) "embeded" documents for the web [on hold]

  - by WHITECOLOR

  Say I have to have terms of use on site, a place the text as marked up html. Where it is better to prepare this document initially if it is going to placed to the web? Considering that such documents are prepared and changed by lawyers, it is not very applicable for them to use text editor. And it is not very efficient to manually process content to prepare it for the web as it is changed. For now my solution is: Prepare document text in google docs keeping some simple structure (title, ordered lit of features, simple paragraphs), save as html (it will contain some unnecessary markup) and then use custom conversion tool (some script) to convert saved html from google docs to simple html and inject new version to the site. What is common practiceses for this problem? What is the workflow of preparing and publishing such documents.

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• Learning Blend with .toolbox (Silverlight TV #29)

  In this episode, Arturo Toledo demonstrates all of the new content he and his colleagues have created to teach you to design and develop with Expression Blend and Silverlight. He shows off some really cool samples, all of which you can download and do yourself through hands on-labs. Arturo walks through the .toolbox site and shows the numerous learning materials, videos, demos, and hands-on labs. If you have been looking for a comprehensive set of self-paced learning materials focused on designing ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Why isn't .profile sourced on login to LXDE?

  - by papukaija

  I switched recently from GNOME to LXDE and since then my .profile file hasn't been sourced on login. I found out that my PATH variable doesn't include ~/bin anymore. However, my .profile file includes PATH="$HOME/bin:$PATH" while PATH's content is /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games. Is it intended that LXDE doesn't read this file on login? If yes, what file should I use to add the bin folder to the PATH variable? If not, to what package should I report a bug?

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• Is a yobibit really a meaningful unit? [closed]

  - by Joe

  Wikipedia helpfully explains: The yobibit is a multiple of the bit, a unit of digital information storage, prefixed by the standards-based multiplier yobi (symbol Yi), a binary prefix meaning 2^80. The unit symbol of the yobibit is Yibit or Yib.1[2] 1 yobibit = 2^80 bits = 1208925819614629174706176 bits = 1024 zebibits[3] The zebi and yobi prefixes were originally not part of the system of binary prefixes, but were added by the International Electrotechnical Commission in August 2005.[4] Now, what in the world actually takes up 1,208,925,819,614,629,174,706,176 bits? The information content of the known universe? I guess this is forward thinking -- maybe astrophyics or nanotech, or even DNA analysis really will require these orders of magnitude. How far off do you think all this is? Are these really meaningful units?

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• Announcing the ADF Architecture Square at OOW12

  - by Chris Muir

  The ADF product management team are happy to announce at Oracle Open World the publication of the ADF Architecture Square: Over the last number of years Oracle has recognized that many customers have matured their ADF skills and are now looking for information on advanced concepts beyond the how-do-I-get-this-poplist-to-work type questions.  In order to satisfy this demand we've devised the ADF Architecture Square where papers, presentations and demos will consider such broad software engineering concepts as ADF architecture, development and testing, building and deployment, and infrastructure.   If you have a look at the site right now it's a rather modest affair, but we hope to continue to expand the content to give further guidance and information to help shortcut your ADF project needs.  Either watch the website or follow our dedicated @adfarchsquare twitter feed.

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• Trick Ubuntu into resolving a domain name locally

  - by Matthew Brown

  I have an Ubuntu box that I use for all sorts of things. One thing I really want to do is redirect a sub domain to a local script. For example thisbit.example.com should actually show the content from localhost/~USER/FAKE.thisbit.example.com/ which is a folder that Apache is running for me which contains a very simple PHP script which implements an offline version of a server script that I am testing against. But example.com should continue to behave normally as should notthisbit.example.com etc. Ideally I need to be able to switch from testing to live with minimal fuss when the time comes.

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• Mount file system path as encrypted?

  - by Sebi

  I know how to mount an encrypted ext4 partition. However, now I want to do the opposite. I want to mount a folder of an existing partition somewhere else in my filesystem, but when accessing it, files should get encrypted using AES256. Is that possible? Here an example: I have a folder containing some images 1.jpg, 2.jpg, 3.jpg, etc. I want to mount this folder in another location so that the content of the images are encrypted. Filenames shouldn't change. Background: I want to synchronise my image folder to a cloud storage, but I want to encrypt the files before upload. The tools provided by the cloud provider don't support client side encryption. Therefore, I want to use the tools on a folder only containing encrypted data.

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• Good practices when writing a parser for a standard file format (such as ePub)

  - by J-F L-R

  I am considering writing an Android reader software that can read ePubs and display them. I checked the ePub standard documents. However, these contain a lot of information. So I am wondering what is the process of implementing a standard for a file format. What are the steps to get a working implementation without passing by parts of the standard? Are there any best practices? Also, is it even possible to program this alone in a reasonable time? From what I have already found out, ePub is basically a zip archive. That means I could probably use zlib to decompress it. The content is in XHTML and CSS, so I believe it should be possible to display it in a WebView. The parts that are missing are writing the code that can read the metadata and manage the non-standard XHTML extensions.

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• Working on the search

  The one thing I've always like working on and about this site, is the full text search engine and spider. Bascially it goes out and spiders all the major development blogs on the web, and then indexes them. The engine uses Lucene for it's index. Lucene is another open source project and it works really fast. Currently the directory is indexed, and the rss feeds are underway. We're talking about a lot of content, but once it's done you'll be able to pull podcasts, and videos as they get posted to...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Wordpress : Automatically transfer media files to Amazon S3

  - by Ron Ranieri

  I've been using VPS to host 7 Wordpress websites, most of them require big storage but very little RAM and traffic. So I'm thinking of moving the static files(uploads folder) content to Amazon S3 and I'm looking for the most viable solution to this. I want every website to have their own bucket and newly uploaded media files automatically uploaded to Amazon S3 without using plugin. I'm ok with cron job, for example the files were uploaded first to my server, then transferred to S3 and deleted from my server every 24 hour. Or is there any way for me to change the default upload directory to my S3 bucket without sacrificing any Wordpress functionality(resize/title etc)? What do you think the most efficient way to do this? Currently I'm looking at this plus cron job but I would like to know better option if it exist.

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• Search engine bots accessing strange URLs

  - by casasoft

  We have ELMAH enabled on our site and get errors whenever a Page Not Found error is triggered on the website. We have recently redesigned a new website and so we understand that search engine robots might have previously indexed pages which they try to access and result in a Page Not Found errors. For this reason, we have set up permanent redirects for such previously indexed pages to the respective new pages. The website in mention is www.chambercollege.com and for example, a previously indexed URL was www.chambercollege.com/special-offers.aspx. This page is no longer accessible so we have created the necessary permanent redirect to redirect to the respective page on www.chambercollege.com/en/content/special-offers-161/. Now we are starting to receive Page Not Found errors of search engine bots (e.g. MSN bot) trying to access the URL www.chambercollege.com/special-offers.aspx/images/shadow_right.jpg/. Any idea how could a search engine make up that strange URL and whether you have any suggestions of what to do best?

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• Is it really a security problem to have non secure assets on an ssl page?

  - by blockhead

  My understanding is that this is just an example of being overly cautious, but if my checkout form contains an unsecure asset on it, that doesn't endanger anybody's credit card numbers from being caught by a man-in-the-middle. I'm asking this because every once in while, maybe because of cached content or whatnot, somebody writes in saying that they are seeing this "error" (even though there are no unsecure assets on my page), but they want an explanation. So yes, I can tell all about encryption and certificates and trust and men-in-the-middle. But what do I tell them about this. How do I convince them that the site is 100% safe (and if it isn't let me know that I'm mistaken!)

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• Seo Google Publisher Network

  - by Andy

  I'm just about to start a new business which creates niche affiliate sites. I'm curious about the impacts to me from Google of all the urls being hosted with the same analytic tags, webmaster tool tags and server ip ranges. To benefit the most from google's serps should i have each domain within seperate analytic accounts and webmaster tools or is it ok for me to have all of my domains within one account. My issue is duplicate content and the fact that i am building a publisher network and i'm not sure how much google likes them. I'm notoriously bad at searching and as such havent found what i'm looking for yet. Any help would be very much appreciated.

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• Angry Birds and Star Wars Join Forces for an Awesome New Edition [Plus Wallpaper!]

  - by Asian Angel

  Are you ready for a new version of Angry Birds? Then rejoice, you are less than a month away from an awesome new release of everyone’s favorite bird-slinging, pig smashing game! Prepare for a journey to a galaxy far, far away… From the blog post: From the deserts of Tatooine to the depths of the Death Star – the game and merchandise will feature the Angry Birds characters starring as the iconic heroes of the beloved Saga. In the coming weeks, fans can expect additional new videos, characters, and much more exciting content to be revealed. The game will be available on iOS, Android, Amazon Kindle Fire, Mac, PC, Windows Phone and Windows 8. Here is the first of the promo videos for the new version. Also, make sure to download the first official wallpaper (linked to below)! How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems 7 Ways To Free Up Hard Disk Space On Windows

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• Selecting Dynamic ID JQuery [migrated]

  - by Vedran Wex Maricevic

  I need to select dynamic id using JQuery, and once I select it then I need to do some action on it. This is the HTML that I have: <input id="content_photos_attributes_1355755712119_image" name="content[photos_attributes][1355755712119][image]" size="30" type="file"> Please note the id value, text is always the same however the number changes (I do not have control over that change). What I need to do is to create on click for that element. This is what I got so far, and it is not working. <script type="text/javascript"> jQuery.noConflict(); jQuery("input[id *= 'content_photos_attributes_']").click(function() { alert("Image deletion is clicked"); }); </script> It really makes no difference whether I select that element by ID or by its name.

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• Can you tell whether I have a hardware or software problem with a DVD-ROM drive?

  - by user8934

  Trying to copy the content of a DVD on a Asrock ION 330 running Maverick, i.e. with: dd if=/dev/sr0 of=dvdcopy ...I get errors in /var/log/messages: Jan 15 17:18:15 asrock kernel: [ 2616.445966] sr 1:0:0:0: [sr0] Unhandled sense code Jan 15 17:18:15 asrock kernel: [ 2616.445975] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jan 15 17:18:15 asrock kernel: [ 2616.445984] sr 1:0:0:0: [sr0] Sense Key : Medium Error [current] Jan 15 17:18:15 asrock kernel: [ 2616.445994] sr 1:0:0:0: [sr0] Add. Sense: Id CRC or ECC error Jan 15 17:18:15 asrock kernel: [ 2616.446004] sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 02 00 00 02 00 I'd tell it is a hardware problem, but it happens with various DVDs and on a second PC, also running Maverick... Both the PCs previously ran Lucid, same problems.

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• how to have 'find' not return the current directory

  - by Pinpin

  I'm currently trying to find (and copy) all files and folder structure matching a specific pattern, in a specified directory and I'm so nearly there! Specifically, I want to recursively copy all folders not begining with a '_' character from a specified path. find /source/path/with/directories -maxdepth 1 -type d ! -name _\* -exec cp -R {} /destination/path \; In the /source/path/with/directories/ path are machine-specific directories beginning with '_' and others, and I'm only interested in copying the others. For a reason beyond me, the find command returns the /source/path/with/directories/ directory, and therefore copies its content, directories begining with '_' included. Anyone have a hint as to why that is? Thanks, Pascal

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• How do I use unpackHalf2x16?

  - by user1032861

  I'm trying to use (un)packHalf2x16, without success so far. I'm drawing with: glVertexAttribIPointer(0, 2, GL_UNSIGNED_INT, 0, 0); glEnableVertexAttribArray(0); glBindBuffer(GL_ARRAY_BUFFER, vbo); glDrawArrays(GL_POINTS, 0, n_points); glDisableVertexAttribArray(0); and on the shader #version 330 core #extension GL_ARB_shading_language_packing : require in uvec2 A0; // (...) vec4 t = vec4(unpackHalf2x16(A0.x), unpackHalf2x16(A0.y)); But nothing gets drawn. I'm pretty sure buffer's content is right, and if I use vec4 t = vec4(0); I can see it's working properly. How is this packing / unpacking thing supposed to work? I can't find any example.

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• How to organize my site's file system properly?

  - by Wolfpack'08

  Doing some reading on Stack Overflow, I've found a lot of information suggesting that proper organization of a file system is crucial to a well-written web app. One of the key pieces of evidence is high-frequency references to "separation of concerns" in questions related to keeping programs organized. Now, I've found some information on organizing file systems (Filesystem Hierarchy Standard) from 2004. It raises only two concerns: first, the standard's a bit dated, so I believe it may be possible to do better given the changes in technology over the past 8 years; second, and most important, my application is very small compared to an entire Linux distro. I think that the file system should be organized very differently because of that. Here's what I'm looking at, currently: /scripts, /databases, /www -> /dev, /production -> login, router, admin pages, /sites -> content types, static pages /modules, /includes, /css, /media -> /module-specific-media

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• SharePoint Search Problem: The start address sps3://server cannot be crawled.

  - by Clara Oscura

  With this post, I'm going to start a series on problems I have encountered with SharePoint search. Error: The start address sps3://luapp105 cannot be crawled. Context: Application 'Search_Service_Application', Catalog 'Portal_Content' Details:  Access is denied. Verify that either the Default Content Access Account has access to this repository, or add a crawl rule to crawl this repository. If the repository being crawled is a SharePoint repository, verify that the account you are using has "Full Read" permissions on the SharePoint Web Application being crawled.   (0x80041205) (Event ID: 14, Task Category: Gatherer) Solution: give appropriate permissions to User Profile Synchronisation Service http://social.technet.microsoft.com/Forums/en-US/sharepoint2010setup/thread/64cdf879-f01e-4595-bc52-15975fefd18d http://www.dotnetmafia.com/blogs/dotnettipoftheday/archive/2010/03/29/how-to-set-up-people-search-in-sharepoint-2010.aspx

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• Drupal 7: Documents as a node/block/field

  - by WernerCD

  I'm working on my first Drupal site. I've progressed in learning the basics . I still have a lot to learn tho. Using FileViewer I can load a PDF saved in a field, for view content of various types. I haven't found something that does the same for Word Docs, Excel, PDF, etc. Does anyone know of something that works in Drupal 7 to load documents other than PDF like FileViewer does inside a browser? Or like Scribd does (Scribd is hosted. I am behind a firewall with limited access for users. So I don't want to use a Scribd like service.)

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• Prevent azure subdomain indexation

  - by Leg10n

  Let me explain my situation, I have an azure website (with azurewebsites.net sub domain), and a custom domain.com, built with asp.net MVC Both are being indexed by Google, but I've noticed the custom domain is being penalized and it doesn't show up in results, it only shows when I search for "site:domain.com" I want to remove and block the azurewebsites.net subdomain from Google. I've read the "possible" solutions: Adding robots.txt: won't work, because the subdomain and the domain are the exact same content, so subdomain.azures.net/robots.txt will lead to domain.com/robots.txt, removing the domain as well. Adding the tag, is the same situation as the previous point. I'm using a CNAME register to redirect the domain to the subdomain, so I can't redirect to a sub directory. Do you have any other ideas?

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