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Search found 9095 results on 364 pages for 'nonlinear functions'.

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• Is it possible to symbolically reference a Perl CORE module?

  - by Blaise Roth

  I know I could easily do something like sub sin { sin($_[0]); } and symbolically reference that for every function I need to symb ref, but I'd just like to know if there's a way to do something like {$foo}(123); vs. &{$foo}(123); which works, but not for core functions. Thanks.

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• How to add ads to the end of RSS on wordpress?

  - by zeina

  I have added a function to functions.php on my theme. function insertAds($content) { $content = $content.' add goes here'; return $content;} add_filter('the_content_feed', 'insertAds'); add_filter('the_excerpt_rss', 'insertAds'); The problem is that I'm having the add displayed under each content, and not at the end of the rss page. How can I fix that?

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• jQuery each doesn't have a callback-possibility?

  - by Martti Laine

  Hello I have a loop created with each, check this example: $('.foo').each(function(i){ //do stuff }); Is there any possibility to run a functions when this loop has ended? Couldn't find it on docs or Google. I can make it work without this kind of solution, but it's always good to search for and use the simpliest methods. Martti Laine

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• Passing JSON through the URI

  - by Leaf

  I'm trying to create a REST based web service with data encapsulated using JSON. My problem is when I pass the string version of JSON in the URI it turns to something like this: %7B%22coal%22:100,%22ele%22:1500.1%7D. I'm wondering if there are any functions Java for converting between the escaped and unescaped versions so I can parse the string.

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• Confusing Javascript class declaration

  - by clutch

  I have some third-party Javascript that has statements like this: FOO = function() { ...functions() ... return { hash } }(); It is working as designed but I'm confused by it. Can anybody define what this structure is doing? Is it just a weird way to create a class?

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• In perl, can I call a method before executing every function in a package?

  - by hermanningjaldsson

  I am writing a module and I want a specific piece of code to be executed before each of the functions in it. How do I do that? Is there no other way than to just have a function-call at the beginning of every function?

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• Dealing with &rest-parameters in common lisp

  - by Patrick

  I want define a functions that accepts &rest - parameters and delegates them to another function. (html "blah" "foo" baz) = "blahfoobaz" I did not find a better way than this one: (defun html (&rest values) (concatenate 'string "" (reduce #'(lambda(a b) (concatenate 'string a b)) values :initial-value "") "")) But this looks somewhat glumbsy to me, since line 4 does no more than concatenating the &rest parameter "values". I tried (concatenate 'string "" (values-list values) "") but this does not seem to work (SBCL). Could someone give me an advice? Kind regards

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• What can I use MySQL for?

  - by ilhan

  I know how to store data in MySQL. Shortly, I know the basics: design, storing strings, integers, date. Is there something else that could be done/achieve with MySQL? Like some kind of functions, temprory bla blas? I don't know. (I know PHP)

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• Passing function-specific variables

  - by Simon Carlson

  Say I got two functions that looks like this: function main(Index) { doStuff(); } function doStuff() { if(Index == 1) { document.write("Hello world!") } } And some HTML: <input type="button" value="Click me" onclick="main(1)" /> I realize this is a very stupid way to use function-specific variables and such, but it's just out of curiosity. So is it possible to pass the variable Index from the main function to the doStuff function?

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• How do I create both a .lib file and an .exe file in Visual C++?

  - by Spidey

  I currently have a console project which creates an .exe file; I want it to also create a .lib file so other projects, compiled as DLLs, would be able to call functions from the original project. I know it is possible, but I couldn't find how to do that. How do I tell the linker to also link a .lib?

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• Visual Studio different colour for constants, function names etc. ?

  - by Nick Brooks

  I know that you can change text editor colours but all the things I want to customized in one group "Identifiers". Is there a way to break that group into "Variables","Constants","Functions" and things like that so I can customize colours for those things separately?

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• What is a hash function in java?

  - by Mohit Deshpande

  I have check out this Wikipedia page on it, but I still don't understand it. Can someone please help my dim-witted mind to understand the concepts of hashing, hashtable/hashmap, and hash functions? Some examples would really help.

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• C++ Function arguments validation (pointer vs. object address arguments)

  - by Andrew

  Hello everyone, What do you consider a better programming practice: passing objects as pointers or references to functions. What do you do for input validation? Thanks.

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• Getting ORACLE programming object definitions

  - by Yaakov Davis

  Let's say I have an ORACLE schema with contains a package. That package defines types, functions, procedures, etc: CREATE PACKAGE... DECLARE FUNCTION ... PROCEDURE ... END; Is there a query I can execute to get the definitions of those individual objects, without the wrapping package?

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• how to check some assembly is present in client and register that if not.

  - by Jimmy

  hi there, what i wana know is that how can i use assembly that is register in GAC in my C# application. Detail: What i wana achieved is that 1) Check ABC assembly that is register in my client machine or not from my windows application 2) If not then register that assemble in GAC of client from my windows application 3) And use this assembly and perform some functions Remember that that ABC assemble is my assembly having some of my function.

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• Share your conky tips / scripts / .conkyrc

  - by Chad Birch

  I've just started tinkering with conky, and I'm hoping the StackOverflow crowd can share some of the cool things they've done with this tool. Scripts and .conkyrc files specifically geared towards developers would be especially good to see. Some good examples of developer-centric functions would be repository-monitors or heck, even something that monitors StackOverflow. Screenshots of what the functionality actually looks like would be appreciated as well.

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• How exactly does fopen(), fclose() work?

  - by user625672

  Hi, I was just wondering about the functions fopen, fclose, socket and closesocket. When calling fopen or opening a socket, what exactly is happening (especially memory wise)? Can opening files/sockets without closing them cause memory leaks? And third, how are sockets created and what do they look like memory wise? I'm also interrested in the role of the operating system (Windows) in reading the sockets and sending the data.

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• how to set/get pixel on a texture in OpenGL ES on iPhone?

  - by unknownthreat

  I am trying to Google for what I've mentioned in the title, but somehow I couldn't find it. This should not be that hard, should it? What I am looking for is a way to gain access to an OpenGL ES texture on iPhone, and a way to get/set pixel with it. What are the OpenGL ES functions I am looking for?

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• Convert.ToSingle() for float data Type

  - by Asim Sajjad

  I have used many of the Convert.To..... functions for conversion , but I didn't understand one thing that for every datatype they have provide a Convert.To function but not for float datatype, in order to convert to float you need to use Convert.ToSingle() , why is this so ?

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• QGraphicsView ensureVisible() and centerOn()

  - by onurozcelik

  Hi, I am going to do pan/scale stuff on QGraphicsView. So I read the documentation of QGraphicsView and see some utility functions like ensureVisible() and centerOn(). I think I understand what the documentation says but I can' t manage to write a working example. Could you please write/suggest me an example code to understand the issue.

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• PHP: Where to place return 'false' value?

  - by Mike

  Is one of the following functions better than the other, in terms of where to place the 'return false' statement? Function #1: function equalToTwo($a, $b) { $c = $a + $b; if($c == 2) { return true; } return false; } Function #2: function equalToTwo($a, $b) { $c = $a + $b; if($c == 2) { return true; } else { return false; } } Thanks!

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• What methods are available in the WinAPI for accessing programs in the system tray?

  - by Corey Ogburn

  What DLLs would have functions for accessing things in the System Tray? Do I even need the winapi, or are there classes already available in the Class Library for this? I'm hoping to find a way to emulate all the functionality of the system tray, i.e. the icons, the mouseover text, and the capability to display the context menu.

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• Any PHP MVC framework planning to use 5.3 features?

  - by alexandrul

  I would like to get started with PHP, and 5.3 release seems to bring many nice features (namespaces, lambda functions, and many others). I have found some MVC frameworks, and some of them support only PHP 5: PHP Frameworks PHP MVC Frameworks Model–view–controller on Wikipedia but can anyone recommend one of those MVC frameworks that plans to actively use PHP 5.3 features, not just being compatible with PHP 5.3? Update Results so far: Zend Framework 2.0 (in development) Lithium (in development, based on CakePHP) Symfony (in development) FLOW3 (in development, alpha)

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• How are classes more secure than structures ?

  - by Asad Hanif

  Structure's member are public by default ans class's members are private by default. We can access private data members through a proper channel (using member function). If we have access to member functions we can read/write data in private data member, so how it is secure...we are accessing it and we are changing data too.....

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• glibc regexp performance

  - by Jack

  Anyone has experience measuring glibc regexp functions? Are there any generic tests I need to run to make such a measurements (in addition to testing the exact patterns I intend to search)? Thanks.

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