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  • Multiple .obj Models in THREE.js and detecting clicked objects

    - by ZedBee
    I have been following along this example to load .obj Model using three.js. Since I needed more than one model to load so I tried this loader.addEventListener( 'load', function ( event ) { var object = event.content; object.position.y = - 80; scene.add( object ); }); loader.load( 'obj/model1.obj' ); loader.load( 'obj/model2.obj' ); First: I don't know whether this is the right approach or not since I searched but didn't find any tutorial loading more than one .obj models. Second: I want to be able to click different models on the screen. I tried this which doest not seem to work for me. Any suggestions on this?

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  • Database with users design

    - by 1110
    I am in database design development phase. Application will work with large number of users (LARGE :)) I designed 80% of database but I have one Users table which is connected to everything else: Users {UserId, FirstName, LastName, Username, Password, PasswordQuestion, PasswordAnswer, Gender, RoleId, LastLoginDate etc etc} I saw asp.net membership database structure where Users and Membership are two tables. My questions are: Should I use one users table with all users data in it or more tables? If answer is 'more tables', what tables to use? Any advice on how to structure relation between those tables? This is sample relation that I have, and trying to improve. I don't understand why user and userChild are separated tables?

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  • 404 not found in telnet, works fine in browser

    - by Viranch Mehta
    i am having a very irritating problem, when i open a url ( http://celebs.widewallpapers.net/md/a/adriana-lima/1440/Adriana-Lima-1440x900-002.jpg ) in browser, it works fine.. but when i try to access it by telnet on bash, i get 404 not found!! my exact terminal: $ telnet celebs.widewallpapers.net 80 HEAD /md/a/adriana-lima/1440/Adriana-Lima-1440x900-002.jpg HTTP/1.0 [enter] [enter] HTTP/1.1 404 Not Found Server: nginx Date: Sun, 23 May 2010 21:36:05 GMT Content-Type: text/html; charset=windows-1251 Content-Length: 166 Connection: close please help me with this as i m trying to make a C batch-downloader, which is almost working as same as the telnet.

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  • Bluehost internal server error

    - by Aditya
    Hello everyone, When i am creating the setup of my rails application on bluehost,it throw following error:- Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request. Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635 Server at team.cipher-tech.com Port 80 Please help me.It's urgent. Thanks in advance..

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  • Java Memory Overhead

    - by flamealpha
    Hello, I would like to ask about Memory Overhead in java, I have a large ArrayList (61,770 items), and trying to calculate the amount of memory taken by each item (counting the object and its ArrayList entry), by profiling the app i get that after all the data is loaded, the heap takes ~ 25Mb. when the ArrayList has only 2 items the heap takes ~1Mb , so roughly: (24*1024*1024)/61,768 = 407 bytes. however, when i count the fields of the each object, i get 148 bytes(not including the ArrayList, and assuming int=4,float=4,reference=4), I am curious to know where did all of those extra bytes came from... i can guess that since the objects I store in the ArrayList are implementing an interface, they store extra values, maybe the VM stores a 4byte function pointer for each implemented method? the interface they implement have 20 functions so thats 80 more bytes, totaling 228 bytes, still not close to the 400 bytes measured. any help would be appreciated.

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  • Strange error in ASP.NET

    - by rockinthesixstring
    Every once in a while I get about 10 - 20 identical errors on my asp.net app. It's always the same, and I'm wondering if it is someone trying to hack in (it happens about once a month). Source: System.Web Message: The file '/~/Default.aspx' does not exist. User IP: 89.122.29.80 User Browser: Unknown 0.0 User OS: Unknown Stack trace: at System.Web.UI.Util.CheckVirtualFileExists(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.UI.PageHandlerFactory.System.Web.IHttpHandlerFactory2.GetHandler(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean completedSynchronously) why on earth would someone be trying to access "/~/Default.aspx" ?

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  • jqGrid editForm problem

    - by PaulStanek
    Hi, I have simply jqgrid definitions like this: jQuery("#C2").jqGrid({ url: '/Customers.mvc/GetGridData/', datatype: 'json', autowidth: 'true', mtype: 'GET', colNames: ['Nazwa', 'Symbol', 'Status', 'Miasto', 'Ulica', 'Budynek', 'Mieszkanie', 'Koda pocztowy', 'Domena', ' '], colModel: [ { name: 'Name', index: 'Name', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Symbol', index: 'Symbol', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Status', index: 'Status', align: 'left', editable: 'true', edittype: 'text' }, { name: 'City', index: 'City', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Street', index: 'Street', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Building', index: 'Building', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Flat', index: 'Flat', align: 'left', editable: 'true', edittype: 'text'}, { name: 'PostalCode', index: 'PostalCode', align: 'left', editable: 'true', edittype: 'text' }, { name: 'Domain', index: 'Domain', align: 'left', editable: 'true', edittype: 'text'}, { name: 'ExtId', index: 'ExtId', align: 'left', editable: 'true', edittype: 'text'}, ], pager: jQuery('#C2_p'), rowNum: 30, rowList: [20, 30, 50], sortname: 'Name', sortorder: 'Asc', viewrecords: 'true', width: '80%', height: '100%', editurl: '/Customers.mvc/SaveCustomer/', postData: { gridId: 'Customers' }, caption: 'Klienci2' }).navGrid('#C2_p', { edit: true, add: true, del: true, search: false, refresh: false }, {},//Options for the Edit Dialog {},//Options for the Add Dialog {}//Options for D ); }); And when i call edit/add form it's appears without text edit inputs. I'm using jquery 1.3.2 and jqgrid 3.6.4 Any help will be appreciated.

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  • How to find which type of system call is used by a program

    - by bala1486
    I am working on x86_64 machine. My linux kernel is also 64 bit kernel. As there are different ways to implement a system call (int 80, syscall, sysenter), i wanted to know what type of system call my machine is using. I am newbie to linux. I have written a demo program. include int main() { getpid(); return 0; } getpid() does one system call. Can anybody give me a method to find which type of system call will be used by my machine for this program.. Thank you....

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  • How do I MOVE a circle drawn in a subclass of UIView by overwriting the method "drawRect"??

    - by Christoph v
    hi, I'm trying to figure out what i'm doing wrong but i just don't get it. Here is what i want to do: I want to draw a circle somewhere on the screen of the iphone and then i want the circle always to be displayed at the position where the user currently taps on the screen. I started by creating a subclass of UIView and adding the following lines into the "drawRect" method: - (void)drawRect:(CGRect)rect { //Create the main view! CGContextRef mainscreen = UIGraphicsGetCurrentContext(); //Draw the dot //will be a circle cause rectangle is a square CGRect dotRect = CGRectMake(50, 80, 100, 100); [[UIColor blueColor] set]; CGContextStrokeEllipseInRect(mainscreen, dotRect); CGContextFillEllipseInRect(mainscreen, dotRect); } The appears just fine but now i have no idea how to make it move around on the screen i've tried serveral things and nothing worked pls help!

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  • using jquery to add tr

    - by user306472
    I added a jquery function to add a <tr> dynamically at the end of my table. It worked fine until I added table headers to my table. After I did this, the function started adding 2 trs at a time to the table. What happened? HTML: <table id="table" border="0"> <th>Col 1</th><th>Col2</th><th>col3</th> <tbody> <tr> <td> <select> <option value ="one">one</option> <option value="two">two</option> </select> </td> <td> <input type="text"></input> </td> <td> <input type="text"></input> </td> </tr> </tbody> </table> JQuery code: $(function(){ $('a#add').click(function(){ $('#table > tbody').append('<tr><td><select><option value ="one">one</option><option value="two">two</option></select></td><td><input type="text"></input></td><td><input type="text"></input></td></tr>'); });

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  • Eclipse refresh taking too long

    - by Nash0
    I am doing TDD on a large Java project in eclipse and am finding it frustrating because every time I run a test I have to wait 30 seconds+ for eclipse to compile and refresh. I estimate that 80%+ of that time is spent refreshing. Is there a way I can drastically reduce the amount of refreshing it is doing? I have looked at server other similar questions but I could not see anything that helps. One way I reduced the compile refresh time was to split the unit tests and code into separate projects. There are 4,700 classes in the src project and 300 in the tests. I am running eclipse 3.5.1 on Java 1.6.0_17-b04 (eclipse.vm). My computer is running windows xp with 3.1 gigs of usable ram. The only plugin I have installed is subclipse.

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  • VEMap Pan triggers VEMap.onclick

    - by Jason
    I'm using the Virtual Earth (or Bing!...) SDK and need to attach an event when someone clicks the map. Unfortunately panning the map also triggers the onclick event. Does anyone know of a work around? function GetMap(){ map = new VEMap('dvMap'); map.LoadMap(new VELatLong(35.576916524038616,-80.9410858154297), 11, 'h',false); mapIsInit = true; map.AttachEvent('onclick', MapClick); } function MapClick(e){ var clickPnt = map.PixelToLatLong(new VEPixel(e.mapX,e.mapY)); Message('Map X: ' + clickPnt.Longitude + '\nMap Y: ' + clickPnt.Latitude + '\nZoom: ' + e.zoomLevel); }

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  • Setting a Silverlight textbox control's width relatively

    - by John K.
    Hello, I tried searching on stackoverflow for an answer to my question but couldn't seem to find anything relevant. Since I'm relatively new to Silverlight, I'm not even sure if this is possible, but I am trying to figure out if it is possible to set a Silverlight textbox control's width value proportionally to it's immediate parent container? It would be nice to avoid hard coding a width value. Say you want to place a textbox control inside a horizontally aligned StackPanel control and have it's width always dynamically adjusted to be 80% of the total width of the StackPanel. Is this possible to do declaratively in your xaml markup, or will I need to resort to some codebehind attached to some event handler to accomplish this? fyi, I am currently using Visual Web Developer Express 2008 to write my silverlight code. thanks in advance, John

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  • PHP Explode: How to Download and Split a Specific HTML Part?

    - by elmaso
    Hello, example: at this domain http://www.example.com/234234/go.html is only one iframe-code how can i get the url in the iframe-code? go.html: <iframe style="width: 99%;height:80%;margin:0 auto;border:1px solid grey;" src="i want this url" scrolling="auto" id="iframe_content"></iframe> i have this snippet, but its very bad coded.. function downloadlink ($d_id) { $res = @get_url ('' . 'http://www.example.com/' . $d_id . '/go.html'); $re = explode ('<iframe', $res); $re = explode ('src="', $re[1]); $re = explode ('"', $re[1]); $url = $re[0]; return $url; } thank you!

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  • how to get wanted nodes from Stanford Parser nlp

    - by vitaly
    Hello all! My mean problem is that I dont know how to extract nodes from GrammaticalStructure. I am using englishPCFG.ser in java netbeans. My target is o know the quality of the screen like: the screen of iphone 4 is great. I want to extract screen and great. how can i extract the NN (screen) and VP (great) the code that I wrote is: LexicalizedParser lp = new LexicalizedParser("C:\\englishPCFG.ser"); lp.setOptionFlags(new String[]{"-maxLength", "80", "-retainTmpSubcategories"}); String sent ="the screen is very good."; Tree parse = (Tree) lp.apply(Arrays.asList(sent)); parse.pennPrint(); System.out.println(); TreebankLanguagePack tlp = new PennTreebankLanguagePack(); GrammaticalStructureFactory gsf = tlp.grammaticalStructureFactory(); GrammaticalStructure gs = gsf.newGrammaticalStructure(parse); Collection tdl = gs.typedDependenciesCollapsed();

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  • Calculating spam probability in python

    - by Hobhouse
    I am building a website in python/django and want to predict wether a user submission is valid or wether it is spam. Users have an accept rate on their submissions, like this website has. Users can moderate other users' submissions; and these moderations are later metamoderated by an admin. Given this: user A with an submission accept rate of 60% submits something. user B moderates A's post as a valid submission. However, his moderations are often wrong, and his moderations' accept rate is a mere 30%. user C moderates A's post as spam. User C is usually right. His moderations' accept rate is 80%. How can I predict the chance of A's post being spam?

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  • OpenCV, Python (ctypes), and OS X 10.5: dylib errors/confusion

    - by Jeff
    I have tried two brands of ctypes (ctypes-opencv and another) wrappers for OpenCV (2.0 from svn head), can use Python and OpenCV in the Python console, but whenever I try to import the packages (from ctypes_opencv import *) from another Python file, I get the following error message: OSError: dlopen(/usr/local/lib/libcv.dylib, 6): Symbol not found: __ZN2cv10fastMallocEm Referenced from: /usr/local/lib/libcv.dylib Expected in: flat namespace And some more Python errors: module body in __init__.py at line 18 from ctypes_opencv.cxcore import * module body in cxcore.py at line 80 _cxDLL, _cvDLL, _hgDLL = detect_opencv() function detect_opencv in cxcore.py at line 59 cvDLL = cdll.LoadLibrary(find_lib('cv')) function LoadLibrary in __init__.py at line 431 return self._dlltype(name) function __init__ in __init__.py at line 353 self._handle = _dlopen(self._name, mode) I most recently built OpenCV using flags the ctypes_opencv wiki recommended: ENABLE_SSE(2) OFF and BUILD_NEW_PYTHON_SUPPORT OFF. I've tried a number of flag combinations though. I also tried using the MacPorts install of OpenCV, got the same messages, uninstalled it, and now it errors out as well. :P And if that wasn't enough, I tried using the latest ctypes wrapper, but get boost-jam errors. Any help would be very much appreciated.

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  • solved: passenger(mod_rails) fails to start puppet master under nginx

    - by Anadi Misra
    On the server [root@bangvmpllDA02 logs]# ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] [root@bangvmpllDA02 logs]# puppet --version 3.0.1 and [root@bangvmpllDA02 logs]# service nginx configtest nginx: the configuration file /apps/nginx/nginx.conf syntax is ok nginx: configuration file /apps/nginx/nginx.conf test is successful [root@bangvmpllDA02 logs]# service nginx status nginx (pid 25923 25921 25920 25917 25908) is running... [root@bangvmpllDA02 logs]# however none of my agents are able to connect to the master, they all fail with errors like so [amisr1@blramisr195602 ~]$ puppet agent --test --verbose --server bangvmpllda02.XXX.com Info: Creating a new SSL certificate request for blramisr195602.XXX.com Info: Certificate Request fingerprint (SHA256): 26:EB:08:1F:82:32:E4:03:7A:64:8E:30:A3:99:93:26:E6:66:B9:B0:49:B6:08:F9:67:CA:1B:0C:00:B9:1D:41 Error: Could not request certificate: Error 405 on SERVER: <html> <head><title>405 Not Allowed</title></head> <body bgcolor="white"> <center><h1>405 Not Allowed</h1></center> <hr><center>nginx</center> </body> </html> Exiting; failed to retrieve certificate and waitforcert is disabled when I check logs on puppet master [root@bangvmpllDA02 logs]# tail puppet_access.log [05/Dec/2012:17:45:18 +0530] "GET /production/certificate/ca? HTTP/1.1" 404 162 "-" "Ruby" [05/Dec/2012:18:32:23 +0530] "PUT /production/certificate_request/sl63anadi.XXX.com HTTP/1.1" 405 166 "-" "-" [05/Dec/2012:18:33:33 +0530] "GET /production/certificate/sl63anadi.XXX.com? HTTP/1.1" 404 162 "-" "-" [05/Dec/2012:18:33:33 +0530] "GET /production/certificate_request/sl63anadi.XXX.com? HTTP/1.1" 404 162 "-" "-" [05/Dec/2012:18:33:33 +0530] "PUT /production/certificate_request/sl63anadi.XXX.com HTTP/1.1" 405 166 "-" "-" and the error logs show that nginx is not really able to process the request well 2012/12/05 18:33:33 [error] 25920#0: *23 open() "/etc/puppet/rack/public/production/certificate/sl63anadi.XXX.com" failed (2: No such file or directory), client: 10.209.47.26, server: , request: "GET /production/certificate/sl63anadi.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:33:33 [error] 25920#0: *24 open() "/etc/puppet/rack/public/production/certificate_request/sl63anadi.XXX.com" failed (2: No such file or directory), client: 10.209.47.26, server: , request: "GET /production/certificate_request/sl63anadi.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:47:56 [error] 25923#0: *27 open() "/etc/puppet/rack/public/production/certificate/ca" failed (2: No such file or directory), client: 10.209.47.31, server: , request: "GET /production/certificate/ca? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:47:56 [error] 25923#0: *28 open() "/etc/puppet/rack/public/production/certificate_request/blramisr195602.XXX.com" failed (2: No such file or directory), client: 10.209.47.31, server: , request: "GET /production/certificate_request/blramisr195602.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" Passenger does not show any application groups either [root@bangvmpllDA02 nginx]# passenger-status ----------- General information ----------- max = 15 count = 0 active = 0 inactive = 0 Waiting on global queue: 0 ----------- Application groups ----------- [root@bangvmpllDA02 nginx]# here's my nginx configuration [root@bangvmpllDA02 logs]# cat ../nginx.conf user puppet; worker_processes 4; #error_log logs/error.log; #error_log logs/error.log notice; error_log logs/error.log info; #pid logs/nginx.pid; events { use epoll; worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log logs/access.log main; sendfile on; #tcp_nopush on; server_tokens off; #keepalive_timeout 0; keepalive_timeout 120; gzip on; gzip_http_version 1.1; gzip_disable "msie6"; gzip_vary on; gzip_min_length 1100; gzip_buffers 64 8k; gzip_comp_level 3; gzip_proxied any; gzip_types text/plain text/css application/x-javascript text/xml application/xml; server { listen 80; server_name bangvmpllda02.XXXX.com; charset utf-8; #access_log logs/http.access.log main; location / { root html; index index.html index.htm index.php; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # location ~ \.php$ { root html; fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param SCRIPT_NAME $fastcgi_script_name; include fastcgi_params; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { access_log off; log_not_found off; deny all; } location ~* \.(jpg|jpeg|gif|png|css|js|ico|xml)$ { access_log off; log_not_found off; expires 2d; } } # Passenger needed for puppet passenger_root /usr/lib/ruby/gems/1.8/gems/passenger-3.0.18; passenger_ruby /usr/bin/ruby; passenger_max_pool_size 15; server { ssl on; listen 8140 default ssl; server_name bangvmpllda02.XXXX.com; passenger_enabled on; passenger_set_cgi_param HTTP_X_CLIENT_DN $ssl_client_s_dn; passenger_set_cgi_param HTTP_X_CLIENT_VERIFY $ssl_client_verify; passenger_min_instances 5; access_log logs/puppet_access.log; error_log logs/puppet_error.log; root /etc/puppet/rack/public; ssl_certificate /var/lib/puppet/ssl/certs/bangvmpllda02.XXX.com.pem; ssl_certificate_key /var/lib/puppet/ssl/private_keys/bangvmpllda02.XXX.com.pem; ssl_crl /var/lib/puppet/ssl/ca/ca_crl.pem; ssl_client_certificate /var/lib/puppet/ssl/certs/ca.pem; ssl_ciphers SSLv2:-LOW:-EXPORT:RC4+RSA; ssl_prefer_server_ciphers on; ssl_verify_client optional; ssl_verify_depth 1; ssl_session_cache shared:SSL:128m; ssl_session_timeout 5m; } } and the puppet.conf [main] # The Puppet log directory. # The default value is '$vardir/log'. logdir = /var/log/puppet # Where Puppet PID files are kept. # The default value is '$vardir/run'. rundir = /var/run/puppet dns_alt_names = devops.XXXX.com,devops confdir = /etc/puppet vardir = /var/lib/puppet storeconfigs = true storeconfigs_backend = puppetdb thin_storeconfigs = false async_storeconfigs = false ssl_client_header = SSL_CLIENT_S_D ssl_client_verify_header = SSL_CLIENT_VERIFY # Where SSL certificates are kept. # The default value is '$confdir/ssl'. ssldir = $vardir/ssl any ideas where am I going wrong? I checkthe directory permissions; /usr/share/puppet, /etc/puppet and /var/lib/puppet (and files inside them) are owned by puppet user. Solved The simple solution to my complicated problem was that I had placed the config.ru in wrong place moved it to /etc/puppet/rack , it was in /etc/puppet/rack/public Well!!! :-/

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  • What is your ratio Bug fixing vs Enhancements ?

    - by Newtopian
    In the spirit of this question I wanted to have a sense of what is the proportion of time split between fixing bugs and implementing new features. If possible try to give an estimate for the product as a whole as opposed to individual developer stats and try to make an average over the course of a typical year. Do provide a general descriptive of the product/project to allow comparison. Specifically : Maturity of project Is it still actively developed or strictly in maintenance ? Size estimate of the product/project Size of team developing it (all inclusive) What is your team score on the Joel test. Ex : approx 80% time spent bug fixes 20% new stuff Mature software (20 years old) Actively developed 1.5M Line of Text, approx 700k - 900k LOC 12-15 actively coding in it. we got 5/12 for sure, some would say 7/12.

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  • Math: How to sum each row of a matrix

    - by macek
    I have a 1x8 matrix of students where each student is a 4x1 matrix of scores. Something like: SCORES S [62, 91, 74, 14] T [59, 7 , 59, 21] U [44, 9 , 69, 6 ] D [4 , 32, 28, 53] E [78, 99, 53, 83] N [48, 86, 89, 60] T [56, 71, 15, 80] S [47, 67, 79, 40] Main question: Using sigma notation, or some other mathematical function, how can I get a 1x8 matrix where each student's scores are summed? # expected result TOTAL OF SCORES S [241] T [146] U [128] D [117] E [313] N [283] T [222] S [233] Sub question. To get the average, I will multiply the matrix by 1/4. Would there be a quicker way to get the final result? AVERAGE SCORE S [60.25] T [36.50] U [32.00] D [29.25] E [78.25] N [70.75] T [55.50] S [58.25] Note: I'm not looking for programming-related algorithms here. I want to know if it is possible to represent this with pure mathematical functions alone.

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  • net/http.rb:560:in `initialize': getaddrinfo: Name or service not known (SocketError)

    - by Sid
    ` @@timestamp = nil def generate_oauth_url @@timestamp = timestamp url = CONNECT_URL + REQUEST_TOKEN_PATH + "&oauth_callback=#{OAUTH_CALLBACK}&oauth_consumer_key=#{OAUTH_CONSUMER_KEY}&oauth_nonce=#{NONCE} &oauth_signature_method=#{OAUTH_SIGNATURE_METHOD}&oauth_timestamp=#{@@timestamp}&oauth_version=#{OAUTH_VERSION}" puts url url end def sign(url) Base64.encode64(HMAC::SHA1.digest((NONCE + url), OAUTH_CONSUMER_SECRET)).strip end def get_request_token url = generate_oauth_url signed_url = sign(url) request = Net::HTTP.new((CONNECT_URL + REQUEST_TOKEN_PATH),80) puts request.inspect headers = { "Authorization" => "Authorization: OAuth oauth_nonce = #{NONCE}, oauth_callback = #{OAUTH_CALLBACK}, oauth_signature_meth od = #{OAUTH_SIGNATURE_METHOD}, oauth_timestamp=#{@@timestamp}, oauth_consumer_key = #{OAUTH_CONSUMER_KEY}, oauth_signature = #{signed_url}, oauth_versio n = #{OAUTH_VERSION}" } request.post(url, nil,headers) end def timestamp Time.now.to_i end ` I am trying to do what oauth does in an attempt to understand how to use the Authorization headers. I am also getting the following error. I am trying to connect to the linkedin API. /usr/lib/ruby/1.8/net/http.rb:560:in 'initialize': getaddrinfo: Name or service not known (SocketError) I would really appreciate it if someone could nudge me in the right direction.

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  • Optimizing for speed - 4 dimensional array lookup in C

    - by Tiago
    I have a fitness function that is scoring the values on an int array based on data that lies on a 4D array. The profiler says this function is using 80% of CPU time (it needs to be called several million times). I can't seem to optimize it further (if it's even possible). Here is the function: unsigned int lookup_array[26][26][26][26]; /* lookup_array is a global variable */ unsigned int get_i_score(unsigned int *input) { register unsigned int i, score = 0; for(i = len - 3; i--; ) score += lookup_array[input[i]][input[i + 1]][input[i + 2]][input[i + 3]]; return(score) } I've tried to flatten the array to a single dimension but there was no improvement in performance. This is running on an IA32 CPU. Any CPU specific optimizations are also helpful. Thanks

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  • NLB and Host Header Value

    - by Hafeez
    Background: We are using MOSS 2007 in farm configuration, 2 WFE, 1 Indexer and SQL Server. MS NLB is used for load balancing. Host header value mapped to Virtual IP of Cluster in DNS, is used while creating the web applications in MOSS and all are sharing port 80. Problem: When client tries to access the web application that are configured with host header values. Both of WFEs Hangs for 5 minutes, they stop responding to ping and browser shows 'Page not found'. In the Application Log on the WFE, this error is registered "provider: TCP Provider, error: 0 - The semaphore timeout period has expired". Interestingly, the web application with no host header value and hosted on different ports is working correctly. Any clue to solve this problem will be helpful. Thks. Hafeez

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  • jerky scrolling in NSTableView

    - by Saurabh
    Hello All, I have a NSTableView with around 70 - 80 rows, each row contain a checkbox, title text and a drop down menu to select data. The problem i am facing is that when i scroll the table it does not scroll smooth. When i remove the NSComboBoxCell it works ok. Here is the code i used to add NSComboBoxCell - NSTableColumn* checkColumn = [tblEditData tableColumnWithIdentifier:@"Timer"]; NSCell *aCell = [aTableColumn dataCellForRow:rowIndex]; [aCell setState:3]; NSComboBoxCell *comboBoxCell = [NSComboBoxCell new]; [comboBoxCell addItemWithObjectValue:@"Timer"]; [comboBoxCell addItemWithObjectValue:@"1"]; [comboBoxCell addItemWithObjectValue:@"3"]; [comboBoxCell addItemWithObjectValue:@"6"]; [comboBoxCell addItemWithObjectValue:@"9"]; [comboBoxCell addItemWithObjectValue:@"12"]; [comboBoxCell setStringValue:aDataRow1.timer_val]; [checkColumn setDataCell:comboBoxCell]; return comboBoxCell; Please advice what should i do to remove the jerky scrolling. Thanks

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  • Zend_Soap_Client doesn't work with proxy

    - by understack
    I'm accessing a SOAP web service like : $wsdl_url = 'http://abslive3.timesgroup.com:8888/clsRSchedule.soap?wsdl' ; $client = new Zend_Soap_Client($wsdl_url, array('proxy_host'=>"http://virtual-browser.25u.com" , 'proxy_port'=>80)); Since my shared server blocks port 8888, I'm using this proxy server. But Zend Soap Client tries to directly connect it. Exception information: Message: SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://abslive3.timesgroup.com:8888/clsRSchedule.soap?wsdl' : failed to load external entity "http://abslive3.timesgroup.com:8888/clsRSchedule.soap?wsdl" Stack trace: #0 /home/..../library/Zend/Soap/Client/Common.php(51): SoapClient->SoapClient('http://abslive3...', Array) #1 /home/..../library/Zend/Soap/Client.php(1024): Zend_Soap_Client_Common->__construct(Array, 'http://abslive3...', Array) #2 /home/..../library/Zend/Soap/Client.php(1180): Zend_Soap_Client->_initSoapClientObject() #3 /home/..../library/Zend/Soap/Client.php(1104): Zend_Soap_Client->getSoapClient() #4 [internal function]: Zend_Soap_Client->__call('ReturnDataSet', Array) What am I doing wrong?

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