Search Results

Search found 48797 results on 1952 pages for 'read write'.

Page 1133/1952 | < Previous Page | 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140  | Next Page >

• Ideas for Computer Science related Microteaching

  - by Roman Stolper

  This semester, I will be a TA for an introductory computer science course at my university. As part of TA training, I'll be doing something called Microteaching, which is where I teach for 5-7 minutes in front of a small audience (4-5 people) and I am reviewed on my teaching style. Among being critiqued on my personal things like confidence and eye contact, I will be critiqued on how well I know the subject material, as well as how interesting it is to the audience. So my question is: Can you offer me any suggestions of computer science related topics that: I can begin and finish teaching in a span of 5-7 minutes Are fun to learn about Are accessible to a general engineering (but not necessarily computer science) audience Some topics I have considered: Teaching how to write Hello World in some simple language Introducing a synchronization problem like dining philosophers

  Read the article

• Ambiguous Evaluation of Lambda Expression on Array

  - by Joe

  I would like to use a lambda that adds one to x if x is equal to zero. I have tried the following expressions: t = map(lambda x: x+1 if x==0 else x, numpy.array) t = map(lambda x: x==0 and x+1 or x, numpy.array) t = numpy.apply_along_axis(lambda x: x+1 if x==0 else x, 0, numpy.array) Each of these expressions returns the following error: ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all() My understanding of map() and numpy.apply_along_axis() was that it would take some function and apply it to each value of an array. From the error it seems that the the lambda is being evaluated as x=array, not some value in array. What am I doing wrong? I know that I could write a function to accomplish this but I want to become more familiar with the functional programming aspects of python.

  Read the article

• Java source code generation frameworks

  - by Superfilin

  I have a set of Java 5 source files with old-style Doclet tags, comments and annotations. And based on that I would like to write a generator for another set of Java classes. What is the best way to do that? And are there any good standalone libraries for code analysis/generation in Java? Any shared exprience in this field is appreciated. So, far I have found these: JaxME's Java Source Reflection - seems good, but it does not seem to support annotations. Also it had no release since 2006. Annogen - uses JDK's Doclet generator, which has some bugs under 1.5 JDK. Also it had no releases for a long time. Javaparser - seems good as well and pretty recent, but only supports Visitor pattern for a single class i.e. no query mechanism like in the 2 above packages.

  Read the article

• Regular expression to match any table tag

  - by keeg

  I'm trying to write a regular expression to see if a string contains any of the typical table tags: <table></table> <td></td> <th></th> <tr></tr> <thead></thead> <tfoot></tfoot> <tbody></tbody> Along with tags that may contain other attributes e.g: <table border="1"> I've come up with this so far, however, it matches <br /> tag and I'm not sure why: /<\/?[table|td|th|tr|tfoot|thead|tbody]{1,}>?/ http://www.rexfiddle.net/20Xtqka

  Read the article

• Best cross-platform solution for network server?

  - by Anonymous

  Hi, im starting a new project and for the first time i want to be cross-platform. But the tricky is my project would involve listen server, cryptos etc., etc. So i was wondering what is the best solution for cross-platform development (OpenSSL, instead of MSCrypto etc.) that would be easy to write with VS2010 (yeah the RC). The language is still not specified (depends on witch we would be easier) but im leaning to Visual C++. In Cross-Platform i mean windows/generic unix compilation.

  Read the article

• Images saved with D3DXSaveSurfaceToFile will open in Paint, not Photoshop

  - by bsruth

  I'm using D3DXSaveSurfaceToFile to save windowed Direct3D 9 surfaces to PNG, BMP and JPG files. There are no errors returned from the D3DXSaveSurfaceToFile call and all files open fine in Windows Photo Viewer and Paint. But they will not open in a higher end image editing program such as Paint Shop Pro or Photoshop. The error messages from these programs basically say that the file is corrupted. If I open the files in Paint and then save them in the same file format with a different file name, then they'll open fine in the other programs. This leads me to believe that D3DXSaveSurfaceToFile is writing out non-standard versions of these file formats. Is there some way I can get this function to write out files that can be opened in programs like Photoshop without the intermediate step of resaving the files in Paint? Or is there another function I should be using that does a better job of saving a Direct3D surfaces to an image?

  Read the article

• How would make this run with an if statement and one for loop?

  - by Nick Jacobs

  I'm trying to get this to run by using an if statment, a for loop, and a list. The list is part of the parameters. I am not sure how to write the if statement and have the program loop through all of the different words and set everything how it is supposed to be. newSndIdx=0; for i in range (8700, 12600+1): sampleValue=getSampleValueAt(sound, i) setSampleValueAt(newSnd, newSndIdx, sampleValue) newSndIdx +=1 newSndIdx=newSndIdx+500 for i in range (15700, 17600+1): sampleValue=getSampleValueAt(sound, i) setSampleValueAt(newSnd, newSndIdx, sampleValue) newSndIdx +=1 newSndIdx=newSndIdx+500 for i in range (18750, 22350+1): sampleValue=getSampleValueAt(sound, i) setSampleValueAt(newSnd, newSndIdx, sampleValue) newSndIdx +=1 newSndIdx=newSndIdx+500 for i in range (23700, 27250+1): sampleValue=getSampleValueAt(sound, i) setSampleValueAt(newSnd, newSndIdx, sampleValue) newSndIdx +=1 newSndIdx=newSndIdx+500 for i in range (106950, 115300+1): sampleValue=getSampleValueAt(sound, i) setSampleValueAt(newSnd, newSndIdx, sampleValue) newSndIdx+=1

  Read the article

• Time Complexities of recursive algorithms

  - by Peter

  Whenever I see a recursive solution, or I write recursive code for a problem, it is really difficult for me to figure out the time complexity, in most of the cases I just say its exponential? How is it exponential actually? How people say it is 2^n, when it is n!, when it is n^n or n^k. I have some questions in mind, let say find all permutations of a string (O(n!)) find all sequences which sum up to k in an array (exponential, how exactly do I calculate). Find all subsets of size k whose sum is 0 (will k come somewhere in complexity , it should come right?). Can any1 help me how to calculate the exact complexity of such questions, I am able to wrote code for them , but its hard understanding the exact time complexity.

  Read the article

• How to display the rss version of a News Link

  - by cbrown16

  I'm trying to write a script that will show the rss version of a single url (title, author, image, source, etc..). This should behave much the way that facebook does when you copy paste a link to share and it generates this information automatically. I'm trying to do this with a php script but would also be open to opensource programs that can do this as well. also, if anyone knows of any Joomla/Drupal plugins that can do this that would be great. This may eventually end up on a site run on one of these frameworks. thanks!!

  Read the article

• C# regex innert text between td, span, a tag

  - by mushtaq

  <table > <tr> <td colspan="2" style="height: 14px"> tdtext1 <a>hyperlinktext1<a/> </td> </tr> <tr> <td> tdtext2 </td> <td> <span>spantext1</span> </td> </tr> </table> This is my sample text how to write a regular expression in C# to get the matches for the innertext for td, span, hyperlinks. Thanks everyone.

  Read the article

• Set database based on how the application was started

  - by AaronThomson

  I have two Rails applications (lets call them APP-1 and APP-2), each of them has a dependancy on a third Rails application (APP-3). I would like to be able to run the tests for APP-1 and APP-2 in parallel on my CI server. The problem is, both need to start up APP-3 and write to a DB via the APP-3. This causes conflicts and failures if the tests are run in parallel. My idea for a solution is for APP-1 and APP-2 to each start their own instance of APP-3 and to have each instance point to a different DB. Is there a way to dynamically set the DB in the database.yml of APP-3 so that it connects to a different DB depending on which APP starts it up? FYI. APP-1 and APP-2 currently start APP-3 via rake tasks.

  Read the article

• argparse coding issue

  - by Carl Skonieczny

  write a script that takes two optional boolean arguments,"--verbose‚" and ‚"--live", and two required string arguments, "base"and "pattern". Please set up the command line processing using argparse. This is the code I have so far for the question, I know I am getting close but something is not quite right. Any help is much appreciated.Thanks for all the quick useful feedback. def main(): import argparse parser = argparse.ArgumentParser(description='') parser.add_argument('base', type=str) parser.add_arguemnt('--verbose', action='store_true') parser.add_argument('pattern', type=str) parser.add_arguemnt('--live', action='store_true') args = parser.parse_args() print(args.base(args.pattern))

  Read the article

• Java M4A atom tagging free space issue

  - by Brett

  Hey, I've been trying to be able to read and write iTunes style M4A atoms and while I've successfully done the reading part, I've come to a bit of a halt in regards to the free space atoms. I figured that I should be able edit and shift the padding around to accommodate writing an atom with more data than it originally had. I've been stuck on this for about a day now, and I've been trying to figure out how to determine the closest free space atom with enough size to accommodate the new data. so far I have: private freeAtom acquireFreeSpaceAtom( long position ) { long atomStart = Long.MAX_VALUE; freeAtom atom = null; for( freeAtom a : freeSpace ) { if( Math.abs( position - atomStart ) > Math.abs( position - a.getAtomStart() ) ) atomStart = ( atom = a ).getAtomStart(); } return atom; } That code only takes into account the closest free space atom and completely disregards the fact that it should be greater than or equal to a certain size, but I can't quite figure out how I should check for both closeness and size efficiently.

  Read the article

• how do i use a .dat file as a model for an entity in minecraft?

  - by user1835502

  the entity does not have to do anything, just stand there like a statue, or it doesn't have to be an entity at all, just so the .dat file renders in minecraft i saw this http://pastebin.com/jP4diLJ9 in a java file that came with a .exe, and in the .exe you can choose one of the .dat files and it will show you it as a model, i also asked on minecraft forums and someone said it was possible but i have no idea how maybe has something to do with this try { FileOutputStream fileoutputstream = new FileOutputStream("./Models/"+id+".dat"); fileoutputstream.write(b, 0, b.length); fileoutputstream.close(); } catch(Throwable _ex) {} or if(i 0) {//grabs all models System.out.println("Sending request for Model: "+i); addRequest( 7, i); byte b[] = pack.unpack(download().buffer); if(pack.unpacked) { savemodel(i,b); System.out.println("Model Saved"); }else{ System.out.println("Model Grabbing Complete"); break;

  Read the article

• Can any JavaScript library perform as well as the Cut The Rope JavaScript implementation?

  - by joe

  Now that the canvas tag is starting to get hardware execration [acceleration - thanks guys!] by many browsers, developing casual games in HTML5 is becoming more feasible. ZeptoLabs did a great job porting Cut The Rope to HTML5 for use as a Windows 8 Metro App. You can find some of the details here but they do not get into specifics. I was wondering if anyone knew if they used a library (such as Impact or Crafty) or if you need to write all custom and optimized JavaScript code in order to get this type of performance. Thanks!

  Read the article

• Visual Studio 2008 Macro for Building does not block thread

  - by Climber104

  Hello, I am trying to write a macro for Building my application, kicking off an external tool, and ataching the debugger to that external tool. Everything is working except for the building. It builds, but it is not blocking the thread so the external tool gets kicked off before it can finish. Is there a way I can run ExecuteCommand and wait for the thread to finish? Code is below: DTE.ExecuteCommand("ClassViewContextMenus.ClassViewProject.Build") DTE.ExecuteCommand("Tools.ExternalCommand11") Try Dim dbg2 As EnvDTE80.Debugger2 = DTE.Debugger Dim trans As EnvDTE80.Transport = dbg2.Transports.Item("Default") Dim dbgeng(1) As EnvDTE80.Engine dbgeng(0) = trans.Engines.Item("Managed") Dim proc2 As EnvDTE80.Process2 = dbg2.GetProcesses(trans, "MINIPC").Item("_nStep.exe") proc2.Attach2(dbgeng) Catch ex As System.Exception MsgBox(ex.Message) End Try

  Read the article

• How could I evaluate this in code?

  - by WM

  There is a medieval puzzle about an old woman and a basket of eggs. On her way to market, a horseman knocks down the old woman and all the eggs are broken. The horseman will pay for the eggs, but the woman does not remember the exact number she had, only that when she took the eggs in pair, there was one left over; similarly, there was one left over when she took them three or five at a time. When she took them seven at a time, however, none were left. Write an application that can determine the smallest number of eggs the woman could have had. It might be a multiple of seven because there are no eggs left when it's seven at a time. But I have a problem. 49 eggs -1=2*24 49 eggs -1=3*16 49 eggs-4=5*9 49 eggs-0=7*7

  Read the article

• Conditional type definitions

  - by pythonic metaphor

  I'm sure that boost has some functions for doing this, but I don't know the relevant libraries well enough. I have a template class, which is pretty basic, except for one twist where I need to define a conditional type. Here is the psuedo code for what I want struct PlaceHolder {}; template <typename T> class C{ typedef (T == PlaceHolder ? void : T) usefulType; }; How do I write that type conditional?

  Read the article

• Strategy for developing a multi function asp.net web application

  - by user247023

  I'm about to start a new project and want some advice on how to implement. I need a web application which contains a booking module for reserving timeslots, and a time management module which will enable employees to clock in / clock out. If I am writing an update to the time managment module, I don't want to disrupt the booking engine availability by releasing a new solution containing both modules. to make things more difficult, there is some shared functionality like common users, roles and security. Here's a suggestion I've gotten, which sounds a bit cruddy, but may be functional. Write a 'container' web application which consists of basically a frame, and authentication / security features. This then has links which, will load the 2 independantly built and released web applications into the frame. I can see that say, if I wanted to update the time management module, I would only need to build and release this separately, and the rest of the solution would be 'untouched' Any better alternatives?

  Read the article

• purchasing source code from third party vendor

  - by Richard Friend

  Hi Our company uses some third party vendors to write some of our external facing web sites, however with one vendor we keep experiencing over inflated charges for simple changes and it has been decided to bring the product in-house. I have been tasked to provide a list of deliverables/checkpoints that would form a part of the agreement. what is the minimum you would expect if you are purchasing the source code of a product that you have paid for the development of, should we expect code for any custom libraries they may be using that were written not for us etc.. This is all written in .net so i am well aware we could just get the code via reflector, however i dont think my boss would go for this ;-)

  Read the article

• How to roll my own index in c#?

  - by bill seacham

  I need a faster way to create an index file. The application generates pairs of items to be indexed. I currently add each pair as it is generated to a sorted dictionary and then write it out to a disk file. This works well until the number of items added exceeds one million, at which time it slows to the point that is unacceptable. There can be as many as three million data items to be indexed. I prefer to avoid a database because I do not want to significantly increase the size of the deployment package, which is now less than one-half of one megabyte. I tried Access but it is even slower than the sorted dictionary -if it had an efficient bulk load utility then that might work, but I do not find such a tool for Access. Is there a better way to roll my own index?

  Read the article

• php gzip xml file (53MB) casue Out of memory error

  - by ntan

  Hi, i have a 53 MB xml file that i want to gzip. The code below gzip it $gzFile = "my.gz"; $data = IMPLODE("", FILE($filename)); $gzdata = GZENCODE($data, 9); //open gz -- 'w9' is highest compression $fp = gzopen ($gzFile, 'w9'); //loop through array and write each line into the compressed file gzwrite ($fp, $gzdata); //close the file gzclose ($fp); This cause PHP Fatal error: Out of memory (allocated 70516736) (tried to allocate 24 bytes) Any one have any suggestions. I already have increase the memory in php.ini

  Read the article

• What are block expressions actually good for?

  - by Helper Method

  I just solved the first problem from Project Euler in JavaFX for the fun of it and wondered what block expressions are actually good for? Why are they superior to functions? Is it the because of the narrowed scope? Less to write? Performance? Here's the Euler example. I used a block here but I don't know if it actually makes sense // sums up all number from low to high exclusive which are divisible by a or b function sumDivisibleBy(a: Integer, b: Integer, high: Integer) { def low = if (a <= b) a else b; def sum = { var result = 0; for (i in [low .. <high] where i mod 3 == 0 or i mod 5 == 0) { result += i } result } } Does a block makes sense here?

  Read the article

• Give me better idea to do Marquee tag in asp.net page.

  - by Ayyappan.Anbalagan

  The bellow code working, but i don’t know it the write way or not? <td align="center" style=" height:50px; width:100%; background-color:Red;width:10%;"> <div id="divremview" > <marquee behavior="scroll" direction="up"> <div id="div1"><asp:Label ID="Label1" runat="server" Text="Label">Hi</asp:Label></div> </marquee> </div> </td> Also it not in center alignment. As usual it in left alignment

  Read the article

• UIWebView doesn't load some link

  - by elos

  hello I'm trying to write an rss feed viewer for my iPhone. In my DetailView I have a UIWebView where I want to display specific link retrieved with the rss item.: NSString* url = [data objectForKey:@"link"]; NSString *encodedUrl = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding ]; NSLog(@"Selected link:%@",url); NSURLRequest *request = [[NSURLRequest alloc] initWithURL:[NSURL URLWithString:encodedUrl]]; [itemWebpage loadRequest:request]; [request release]; now,if the retrieved link is something like www.shazaam.com it works. But as soon as the link is something like: http://www.shazam.com/music/web/track?id=41970148" it doesn't. I suppose it's because of the parameter...but how can I fix the problem???? thanks a lot! elos

  Read the article

< Previous Page | 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140  | Next Page >