Search Results

Search found 11639 results on 466 pages for 'numerical methods'.

Page 297/466 | < Previous Page | 293 294 295 296 297 298 299 300 301 302 303 304  | Next Page >

• Provide me with recources on Greibach & Chomsky Normal Form

  - by kristian Roger

  Hi, first please (bare with me)... :-( Im having a course at University ( Theory of Computation ) at first it was easy and simple BUT then we reach the context free grammer specialy the part where we should convert a grammer to Normal forms (Greibach & Chomsky) the thing that I couldnt understand so as usual I went to google and start searching for tutorials or videos I found many(tutorials not videos) but the problem that in tutorials they always explain things as if Im an expert or aware of every thing ... so can anyone please provide me with docs or links where they explaine the methods step by step ... (Please dont tell me to go back to my instructor because if he is useful I wont be asking your help ) thanx in advance

  Read the article

• compiler warning on (ambiguous) method resolution with named parameters

  - by FireSnake

  One question regarding whether the following code should yield a compiler warning or not (it doesn't). It declares two methods of the same name/return type, one has an additional named/optional parameter with default value. NOTE: technically the resolution isn't ambiguous, because the rules clearly state that the first method will get called. See here, Overload resolution, third bullet point. This behavior is also intuitive to me, no question. public void Foo(int arg) { ... } public void Foo(int arg, bool bar = true) { ...} Foo(42); // shouldn't this give a compiler warning? I think a compiler warning would be kind of intuitive here. Though the code technically is clean (whether it is a sound design is a different question:)).

  Read the article

• Symbol exporting problem using __declspec(dllexport)

  - by Gayan

  I use __declspec(dllexport) with several methods in a library. But one of the symbols do not get exported properly. The value in question is called "restart". I've given the output from dumpbin.exe, below: 1 0 0002DB27 ev_err = @ILT+2850(_ev_err) 2 1 0002DADC m_foutput = @ILT+2775(_m_foutput) 3 2 0002D361 m_free = @ILT+860(_m_free) 4 3 0002D505 m_free_vars = @ILT+1280(_m_free_vars) 5 4 0002D055 m_get = @ILT+80(_m_get) 6 5 0002D95B m_ident = @ILT+2390(_m_ident) 7 6 0002D80C m_inverse = @ILT+2055(_m_inverse) 8 7 0002D0F5 m_mlt = @ILT+240(_m_mlt) 9 8 0002D339 m_ones = @ILT+820(_m_ones) 10 9 0002D43D m_rand = @ILT+1080(_m_rand) 11 A 0002DC3F m_resize = @ILT+3130(_m_resize) 12 B 0002D465 m_zero = @ILT+1120(_m_zero) 13 C 0002D3A7 px_foutput = @ILT+930(_px_foutput) 14 D 0002DA2D px_free = @ILT+2600(_px_free) 15 E 00092DE0 restart = _restart 16 F 0002DB45 set_err_flag = @ILT+2880(_set_err_flag) 17 10 0002D550 v_foutput = @ILT+1355(_v_foutput) 18 11 0002D839 v_free = @ILT+2100(_v_free) This seems to indicate that restart did not get exported properly but I can't figure out why. I use the following line to export the method: extern __declspec(dllexport) jmp_buf restart; What is the reason for this anomaly and how can I resolve it?

  Read the article

• PHP upload with progress bar

  - by Mitchan Adams

  Hi all I want to create an upload form to upload large files. Thats pretty much easy, however, the upload process itself taks long and basically looks like nothing is happening for a few minutes. So now I'd like to insert a progress bar to show the user that something is happening and they should just sit tight. I've read of numerous methods like APC and certian flash plugins, but my site is hosted on a shared server and I cant install any new applications on it. I'm thinking, maybe if it is possible to read the size of the temp file it creates via an ajax page. By polling the size every few seconds I should be able to get the progress of the upload. Now the question I pose is...where is the temp file situated?

  Read the article

• C# - Moving a control to the mouse's position

  - by APShredder

  Hello everybody. I am trying to get a control to follow the cursor when the user clicks and drag the control. The problem is that 1.) the control doesn't go to the mouse's position, and 2.) the control flickers and flies all over the place. I've tried a few different methods of doing this, but all so far have failed. I've tried: protected override void OnMouseDown(MouseEventArgs e) { while (e.Button == System.Windows.Forms.MouseButtons.Left) { this.Location = e.Location; } } and protected override void OnMouseMove(MouseEventArgs e) { while (e.Button == System.Windows.Forms.MouseButtons.Left) { this.Location = e.Location; } } but neither of these work. Any help is appreciated, and thanks in advance!

  Read the article

• LDAP in medium trust

  - by eych

  I've have a solution with one website and several projects. The projects all have the AllowPartiallyTrustedCallers attribute and are strongly-named. The site works in full trust. However, after set the trust to medium, I get the System.Security.SecurityException: Request failed. error as soon as I browse to the site. In my projects, I have calls to LogOnUser, as well as many calls to variousSystem.DirectoryServices.AccountManagement methods. Can this site run with medium trust or do I have to have full trust for all the LDAP calls? As I mentioned, I've set the AllowPartiallyTrustedCallers attribute on all projects. Not sure what else to do. Also, I have no idea what/where the error is being generated. The event logs on the server have nothing in regards to this SecurityException. Is there any way to find out what the error location is so maybe I can attempt to rewrite some code? [running .NET 4.0 on Win2k8R2]

  Read the article

• [iPhone]Objective C, objects which do not conform to NSCoding. How to write them to a file.

  - by Noah

  Hi, I am using an Objective c class, a subclass of NSObject. This class cannot be modified. I have an instance of this class that I wish to write to a file which can be retrieved and later reinstate. The object does not conform to NSCoding. To sum up, I need to save an instance of a class to a file which can be retrieved later, without using any of the NSCoding methods such as NSKeyedArchiving encodeWithCoder ... Using them returns this... NSInvalidArgumentException ...encodeWithCoder:] unrecognised selector sent to instance... Is there any other way I can store this object for later use Thank you

  Read the article

• objective c NSURL may not respond to +initFileURLWithPath

  - by caballo7

  I have two lines of code in the applicationDidFinishLaunching function: NSString *targetFilePath = @"/Users/bob/Documents/About_Stacks.pdf"; NSURL *targetFileURL = [NSURL initFileURLWithPath:targetFilePath]; and I am getting the warning (title) in the second line... I have no idea what I am doing wrong. This is an absurdly simply application... I have read other posts about reordering methods, but I am using classes provided by NS, nothing of my own. Any advice would be much appreciated. Thanks.

  Read the article

• Expand / Collapse Swimlane (Domain Specific Language) C#

  - by Tejas

  I have multiple swimlanes on the surface, Is it possible to have expand / collapse functionality to these swimlanes?. My swimlanes are going to contain different shapes (Image Shapes), Geometry shape etc. I have tried the nesting of a geometry shpes but it only contains the geometry shapes not image shapes i.e. I have already created a Geometry shape with it's type as a RectangleD and by writing its partial class I have overridden the Expand() and Collapse() methods but to no avail because this particular Shape (Container) going to contain only Geometry shapes and not the Image shapes. Now I am trying to expand / collapse the swimlanes itself. Please let me know if anyone has done this before.

  Read the article

• Receive and Process Email with ASP.NET / C# [closed]

  - by Arthur Chaparyan

  Possible Duplicates: Recommendations for a .NET component to access an email inbox coding for how to receive a mail in windows apllication What methods are there for having .NET code run and handle e-mails as they arrive? I'm developing a social networking site that will allow users to send an email to an email address that is for posting. This is the same thing Blogger does. This allows me to take a picture with my phone and send it to [email protected] and have it posted to my profile. The site is running IIS6 and I have full access to the server. Emails are currently being processed using the SMTP service that comes with Windows 2003 Server, but I can switch to another system without any issues. I am assuming I would have to somehow have the incoming emails either go into a folder that my application is watching or cause incoming emails to trigger a script. can anyone point me in the right direction?

  Read the article

• Cached/offline maps for iPhone?

  - by Konstantin

  I'd like to use use maps in my application, so that there will be as less as possible traffic. Perfect solution would be caching of map slices. I know it's not possible with google maps (license). I took a look on OpenStreetMaps and it seems as good solution. The next: SDK. The only one I've found is from CloudMade. The problem is, I found no related API methods for caching/offline calls. Are there any alternative solutions?

  Read the article

• creation of multiple dataset in Reporting service report

  - by brijit

  Hi, I have a SSRS report and using PL/SQL for the dataset creation. My report needs two tables 1 one gives detailed view.(dataset 1) 2 one below that gives a summary table (data should come from the calculations based on the data in 1 table) I am using a temporary table for the dataset one. What are the methods to get calculated result for dataset 2. I wrote 2 procedures for each. since first table is a temporary one i am not getting result for second dataset. Wht can be the options. Can I have multiple dataset outof single procedure please give me and idea. Thanks brijit

  Read the article

• How can you determine if Control.Visible is set via property or if the value is inherited

  - by JDMX

  I need to find a way to determine if the Visible property of a control is set via a property change or if is inheriting it value from its parent. Using the Reflector, I find that the functions this.GetVisibleCore() and this.GetState() are both internal methods so I cannot call them. The widgets themselves are created dynamically so I do not want to attach a method to the VisibleChanged event just after the creation of each widget so can try to monitor this property. If I have to, I guess I will but I am looking for something jsut a bit more elegant.

  Read the article

• Reading directly from the Doctrine Searchable index table

  - by phidah

  I've got a Doctrine table with the Searchable behavior enabled. Whenever a record is created, an index is made in another table. I have a model called Entry and the behavior automatically created the table entry_index. My question now is: How can I - without using the search(...) methods of my model use the data from this table? I want to create a tag cloud of the words most used, and the data in the index table is exactly what I need.

  Read the article

• Java: is Exception class thread-safe?

  - by Vilius Normantas

  As I understand, Java's Exception class is certainly not immutable (methods like initCause and setStackTrace give some clues about that). So is it at least thread-safe? Suppose one of my classes has a field like this: private final Exception myException; Can I safely expose this field to multiple threads? I'm not willing to discuss concrete cases where and why this situation could occur. My question is more about the principle: can I tell that a class which exposes field of Exception type is thread-safe? Another example: class CustomException extends Exception { ... } Is this class thread-safe?

  Read the article

• Microsoft leaning support for VS2010

  - by John

  OK, I am a big fan of WPF, and while it is large area to fully understand, Microsoft has been great in posting loads of training video at http://windowsclient.net/learn/videos_wpf.aspx However with the release of 2010 it all seams to have gone very quite. I expected a lot of the support to be updated for 2010 and I also expected a lot of new videos on the best way to use the new features in 2010. Currently I find myself working through videos based on 2008 (or even 2005) and trying to apply them to 2010. Don't get me wrong it not that I mind doing this, it just that I fear I may be learning methods which have better or different solutions in 2010. It is just me expecting too much of Microsoft, or have I missed out on a new website?

  Read the article

• What effect does static const have on a namespace member

  - by user144182

  namespace MyNamespace { static const double GasConstant = 1.987; Class MyClass { // constructors, methods, etc. }; }; I previously had GasConstant declared within the MyClass declaration (and had a separate definition in the source file since C++ does not support const initialization of non-integral types). I however need to access it from other files and also logically it seems like it should reside at the namespace level. My questions is, what effect does static const have in this case? Clearly const means I can't assign a new value to GasConstant, but what does a static member at the namespace mean. Is this similar to filescope static effect, where the member is not accessible outside of the unit?

  Read the article

• Sending information back from delegate [iPhone]

  - by Andy

  I'm using NSXMLParser in my RootViewController.m file. NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithData:response_data]; [xmlParser setDelegate:self]; [xmlParser parse]; [xmlParser release]; I'm also implementing this method to add entries to a dictionary defined in RootViewController.m for later use: - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict However, I'd like to get more than one XML file and do different things when the file has finished; this sounds like I need to use external files as delegates. My question is: If I have the following implementation files (& their header files): RootViewController.m XMLDelegate1.m XMLDelegate2.m and set the ith NSXMLParser delegate to be XMLDelegatei.m, and get those files to return an NSDictionary that I can then add to the NSDictionary defined in RootViewController.m. I guess there are two methods of doing this: Use a method that I don't know about; or Use a better workflow I suspect it's 2, but hope it's 1. Thanks, Andy

  Read the article

• Objective-C global array of ints not working as expected

  - by Fran

  In my MyConstants.h file... I have: int abc[3]; In my matching MyConstants.m file... I have: extern int abc[3] = {11, 22, 33}; In each of my other *.m files... I have #import "MyConstants.h" Inside 1 of my viewDidLoad{} methods, I have: extern int abc[]; NSLog(@"abc = (%d) (%d)", abc[1], sizeof(abc)/sizeof(int)); Why does it display "abc = (0) (3)" instead of "abc = (22) (3)"? How do I make this work as expected?

  Read the article

• Does retrieving an object from Doctrine2 cause __construct() of the model class to run?

  - by jiewmeng

  When I retrieve an object say by $em->find('Application\Models\User', 1); or other methods like DQL, findBy*() cause the __construct() of the model class to run? I am having a problem where I set variables there like reference to EntityManager and I find that its not set. I tried putting a die() in __construct() and it doesn't halt the application. Can I say that if I want to set other properties/fields like EntityManager $em I have to do it some other way? Perhaps something like protected function getEm() { if (!isset($this->em)) { $this->em = \Zend_Registry::get('em'); } return $this->em; }

  Read the article

• Codeigniter: A nice straight forward tutorial on how to build a reset password/forgotten password?

  - by Psychonetics

  I've built a full sign up system with user account activation, login, validation, captcha etc. To complete this I now need to implement a forgot password/reset password feature.. I have created one function that generates a random password 8 characters, another method that takes that random password word and applies sha1 and hashing. Also one that takes that hashed password and stores it in a table in the database. I will keep these methods to one side as they might come in handy later on but for now I would like to know if anyone can point me to a nice tutorial for creating a password reset feature for my website. Thanks in advance

  Read the article

• Posting data to a HttpHandler greater then ~29MB gives a 404 error

  - by Vaibhav Garg

  I am testing a HttpHandler that accepts XML. It works fine when a small amount of data is posted but if I post data larger then approx 29mb, I get a asp.net 404 Error. I am posting to the handler from another handler in the same project and I have tried 2 methods - 1. HttpWebRequest with "POST" 2. WebClient with UploadFile() and UploadData() I get the same 404 error when the posted data is above 29mb. I also tried putting a breakpoint right in the beginning of the receiving handler and debugging. It is never hit. Appears like the handler was never called. Works ok for smaller sized data. What am I doing Wrong? (Thanks in advance for helping)

  Read the article

• Uses for static generic classes?

  - by Hightechrider

  What are the key uses of a Static Generic Class in C#? When should they be used? What examples best illustrate their usage? e.g. public static class Example<T> { public static ... } Since you can't define extension methods in them they appear to be somewhat limited in their utility. Web references on the topic are scarce so clearly there aren't a lot of people using them. Here's a couple:- http://ayende.com/Blog/archive/2005/10/05/StaticGenericClass.aspx http://stackoverflow.com/questions/686630/static-generic-class-as-dictionary

  Read the article

• Vim Editor is very smart?

  - by Narek

  I am programming in C++ or Java. So I want to use Vim editor, because it is very flexible. I have heard that I can configure the Vim editor to be able to go from object to the definition from function to the definition from class name to the definition Do we have any professional Vim-er that could tell me how exactly to configure Vim for that? Thanks in advance. P.S. In case readers will consider this question is not connected with programming, I would say that this is improving speed of programming. So it is a help to the programmer. So please don't close this question. EDIT: Also I would like to know how vim works with code completion and can vim hint the list of methods that are available for the certain object? If yes, then I would like to know how to configure these options too?

  Read the article

• Error using MVCContrib TestHelper

  - by Brian McCord

  While trying to implement the second answer to a previous question, I am receiving an error. I have implemented the methods just as the post shows, and the first three work properly. The fourth one (HomeController_Delete_Action_Handler_Should_Redirect_If_Model_Successfully_Delete) gives this error: Could not find a parameter named 'controller' in the result's Values collection. If I change the code to: actual .AssertActionRedirect() .ToAction("Index"); it works properly, but I don't like the "magic string" in there and prefer to use the lambda method that the other poster used. My controller method looks like this: [HttpPost] public ActionResult Delete(State model) { try { if( model == null ) { return View( model ); } _stateService.Delete( model ); return RedirectToAction("Index"); } catch { return View( model ); } } What am I doing wrong?

  Read the article

< Previous Page | 293 294 295 296 297 298 299 300 301 302 303 304  | Next Page >