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  • Real world example of Unification in First Order Logic?

    - by Sebi
    I know this is only part of a programming question, but at the moment, I'm doing a little bit of logic programming. One thing I still don't understand correctly is Unification in First Order Logic. I read the Wikipedia article and it is more or less clear that the purpose is searching a term that unifies two sentences... There are also examples in this article but I just don't get the point why this should be useful. Can anyone give an example with real world objects instead of A, B, C,, etc.? I hope this will help me to understand. Thanks

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  • jqtransform and collapsed DIV

    - by Marco
    Hello, I am using a jQuery plugin called: jqtransform This plugin uses JavaScript to apply CSS styles to form elements. The problem that I have consists in the following scenario: I’m building a search page, with a advanced search option. When the page loads, the div called “advancedSearch” is hidden, and it will only show if the user clicks a element. Inside the div#advancedSearch I have several form elements. However, if I hide the div#advancedSearch with the CSS style: “diplay:none;”, the jqtransform plugin doesn’t work correctly with the elements that are hidden. So my solution was to hide the div#advancedsearch with JavaScript. This actually works, and it does not matter if it’s done after the document is ready or not. But… with the JavaScript solution, the div#advancedSearch stays visible for a couple of milliseconds… which is visually annoying. So I was wondering if the solution to this problem would be in the CSS, or in correcting the jqtransform plugin, or even in finding a way to immediately hide the div#advancedSearch with JS making it immediately hidden. UPDATE 1 After jeerose comment I decided to place here my function (please note that the <%= % are ASP.Net tags, that I use to get the images path) $('.toggleAdvancedSearch').click(function() { $('#advancedSearchWrap').slideToggle(250); $('form.jqtransform').jqTransform({ imgPath: '<%= ResolveClientUrl("~/masterpages/img/jqtransform/") %>' }); return false; }); UPDATE 2 To test the problem, I did the following: Added another element to the page, with the ID “applyStyle”, and onClick I call the $('form').jqTransform(); Disabled the the $('form').jqTransform(); from the load of the page. If I press the a#applyStyle, before expanding the div#advancedSearch I get the same problem that I had. But if I expand the the div#advancedSearch and press the the a#applyStyle after, the problem is solved. However, if I run the page with the $('form').jqTransform(); function on the load, I cannot reapply it after with the pressing of the a#applyStyle. I think that the solution could be: disabling the all the elements that are inside the div#advancedSearch, and on the same function that expands the div, make It also apply the styles to the elements that are inside the div#advancedSearch. However, I don’t know how to do this (nether if this will work). PS: This seems to be a known issue with the plugin, but I cannot wait indefinitely for a solution.

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  • Are all languages used within .net Equally performant?

    - by WeNeedAnswers
    I know the "Sales pitch" answer is yes to this question, but is it technically true. The Common Language Runtime (CLR) is designed as an intermediate language based on Imperative Programming (IP), but this has obvious implications when dealing with Declarative Programming (DP). So how efficient is a language based on a different paradigm than the Imperative Style when implemented in the CLR? I also get the feeling that the step to DP would incur an extra level of abstraction that might not model at all performant, would this be a fair comment? I have done some simple tests using F# and it all looks great, but am I missing something if the programs get more complex?

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  • Web Application Translation, methods and tools

    - by CiscoIPPhone
    I've developed a web application. It needs to be translated to languages other than English in the future, and ideally the translators shouldn't need to know HTML/JS/C++ to provide the translation. The server side of the web application is written in C++ and the majority of the localised text is in the HTML files. My question is: What approaches are there to translating web applications? - Are there any existing tools that would enable a translator who doesn't understand HTML to translate a site? Should I write an application that extracts the localised text from a html file and can re-substitute translated text? Do you just provide the html file to your translators to be localised? I'm aware the question isn't strictly programming related but the solution may involve programming and it may require some software engineering.

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  • PHP OOP properity constant usage

    - by Misiur
    Hi there. I'm really new to OOP. I'm even not a newbie - I'm noob. So. I want to transfer my pseudo-CMS from "normal" programming, into OOP programming system. And so: private static $dsn = DB_TYPE.':host='.DB_HOST.';dbname='.DB_NAME; What here causes problem? Usage of constraints? I don't know. My editor (aptana studio) shows error after 1 constant. Thanks

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  • libnet that properly calculates checksum on IPV6

    - by VeaEm
    I have recently started playing around with libnet and using it to generate IPV6 packets. I am very new at programming, however, I am quite happy with the library. I have one problem with it though. It seems that libnet currently does not have the ability to properly calculate checksums on IPV6 packets. Being so new to programming, I am not yet capable of fixing this problem (although I am learning, so that one day I can). I am curious, has anyone run across a version of the library that can do this properly? Thanks!

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  • Using Accelerometer in Wiimote for Physics Practicals

    - by Omar
    I have to develop some software in my school to utilize the accelerometer in the Wiimote for recording data from experiments, for example finding the acceleration and velocity of a moving object. I understand how the accelerometer values will be used but I am sort of stuck on the programming front. There is a set of things that I would like to do: Live streaming of data from the Wiimote via bluetooth Use the accelerometer values to find velocity and displacment via integration Plot a set of results Avoid the use of the infrared sensor on the Wiimote Please can anyone give me their thoughts on how to go about this. Also it would be great if people could direct me to existing projects that utizlise the wiimote. Also can someone suggest what would be the best programming language to use for this. My current bet is on using Visual basic. Any sort of help is greatly appretiated.

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  • Interview - Program on Computer

    - by Gilad Naor
    Spent some time searching, couldn't find exactly what I'm after. We like giving hands-on programming exercises as part of the interview process. The interviewee gets a laptop, with the editor and compiler of his choice. He or she then get a programming exercise and has about an hour to code it. Depending on the nature of the question, internet access is either allowed or forbidden. I'm looking for good general questions for a junior developer. I don't care what language they choose to program in. C++ is as good as Python or Scheme, as long as (s)he can program in it (this rules out "can you write a correct copy-constructor" style questions). I just want to see how they code, if their code is self-documenting, if they write tests, check edge-cases, etc. What kind of questions would you ask?

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  • How closely related is music composition to coding?

    - by ehsanul
    It seems to me as if there are a higher proportion of musicians in the programming field than in the general public. Maybe it's just an illusion caused by the fact that I'm an amateur guitarist myself, so I tend to notice coding musicians (or musical coders?) more. But I wonder if there really is some connection. Perhaps a shared set of skills or an innate quality that makes it more likely for someone who enjoys programming to also enjoy playing and composing music. How closely related is music composition to coding? I'd especially like to hear from the musicians around here.

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  • Concepts a web application developer should know?

    - by iama
    I think it is imperative for web application developers to know the answers surrounding the following general questions on web development irrespective of the programming language/framework used. What authentication mechanisms HTTP offer & what are their pros and cons? Why should one go for FORMS authentication? How to secure authentication or for that matter any transactions via HTTP? How to maintain state in HTTP? What are the downsides to maintaining state via cookie & what happens when browsers disable them? Security issues like cross site scripting, session hijacking etc. What other questions a web developer should have answers for similar to the ones above that are programming language/web framework agnostic?

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  • LVM_INSERTITEM very slow in vista/W7

    - by nikos
    in a large listview control collection (say 5000 items), adding a SINGLE extra item can take 10+ seconds in windows vista/7, and that's just the LVM_INSERTITEM message handling it looks that it only affects LVS_ICON, LVS_REPORT and LVS_LIST are still very fast can anybody confirm this? the same code on windows XP with similar listview window styles adds an extra item instantly thanks nikos

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  • innovation for technical high school

    - by gnuze
    I work in a high school in Italy. Our goal is forming computer programmers in 5 years. Nowaday, we teach vb.net on Win ( desktop applications using ADO on Access ), C on linux ( process, threads ) , C++ on Linux ( sockets TCP/UDP with UML ), and a bit of ASP.net, flash programming, PHP, Joomla and PIC Microcontrollers. We are looking for something innovative to add in our programs of study, but every teacher have a different point of view: we are debating about python, C#, Arduino, Silverlight and smartphones programming. Any suggestions? Tx in advance.

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  • How to apply jquery UI buttons to asp:Button

    - by Sash
    How do I apply jQueryUI styles to an asp:Button. Here is the problem: jqueryUI button requires you to have the following format <button>Test button</button> When I try to use an asp button server control, <asp:Button />, asp:Button renders as <input type=button>Test button </input> Thanks in advance, Sashidhar Kokku

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  • Linux periodically "losing" ability to connect to server via SSH?

    - by gct
    I know this isn't exactly a programming question, but it popped up in my use of git for programming projects at least. I've got a web server that I use to host my git repos on, but my ubuntu box seems to "lose" the ability to connect to it via SSH. I'll get a "connection refused" error when I try to ssh or use git. Rebooting my local machine will fix the problem, but only temporarily. I can still connect to the web interface just fine, and the problem manifests with other servers as well. I've been working around it by pulling my changes over to my laptop and pushing from there, but that's sub-optimal as you can imagine. Has anyone seen something like this? I'd be tempted to say it's some kind of IP caching problem, but I can't connect even using the IP address of the server directly... Running Ubuntu 9.04

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  • Changing the style of a Combo-Box in WPF (in Blend preferably)

    - by George Sealy
    I'm having some issues trying to change the look / style of a combo box in Expression Blend / WPF. While there are tutorials out there describing setting styles for buttons, there seem to be a few wrinkles with ComboBox controls. Can anyone offer any advice, or point me towards good tutorials that cover re-styling something more complex than a button?

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  • jQuery: Setting 'style' attribute of element with object

    - by JamesBrownIsDead
    I saw this in our codebase the other day: link.attr('style', map({ color: '#9a4d9e', cursor: 'default' })); map is defined as: function map(map) { var cssValue = []; for (var o in map) { cssValue.push(o + ':' + map[o] + ';') } return cssValue.join(';'); } Is map necessarily? Is there a shorter way to do this? It's important to note that the "style" attribute overrides any styles set by a class added/defined in the "class" attribute.

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  • Div Unique CSS Style Links

    - by Tom
    Hi, I want to create unique styles for my links in a single particular div (So for example I want all links bold and red in the main body, but in the sidebardiv I want them blue and italic) How do I go about it? I have: a:link{ color:#666666; } a:visited{ color:#003300; } a:hover{ color:#006600; } a:active{ color:#006600; } however if I put that in the sidebar div section it messes up my }'s

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  • UIImageView "Sprite Movement" How?

    - by Tate Allen
    Hi all, I am trying to make a game for the iPhone/iPod Touch. I am somewhat new to iPhone programming and extremely new to iPhone game programming so try to bear with me if this is a stupid question. How to I make my character, a UIImageView, move to the right or left, along the x axis. Just a simple translation across the screen. This is very frustrating so if you could link me to a tutorial or something like that, it would be much appreciated. Thanks in advance, Tate

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  • Chrome extension Page Action JS

    - by Radek Šimko
    I'm trying to create an extension using this docs: http://code.google.com/chrome/extensions/content_scripts.html I want a part of JS code to run when document is ready (loaded). This is my manifest.json: { "name": "OwnExtension", "version": "0.1", "content_scripts": [ { "matches": ["https://my.site.eu/*"], "css": ["styles.css"], "js": ["main.js"] } ] } This is my main.js: alert(10); Am I doing sth wrong, that nothing happend when page https://my.site.eu/ loaded in browser?

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  • $_GET['page'] loading content incorrectly

    - by s32ialx
    OK so here is my previous post PHP Templated Site w/ file_get_content links now i got that issue resolved BUT the problem is now that the content loads it displays UNDER the div i placed #CONTENT# inside so the styles are being ignored and it's posting #CONTENT# outside the divs at positions 0,0 any suggestions? please

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