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• Mathematics - Why is Differential Calculus (MVP) in PHP a tabu?

  - by Email

  Hi I want to do a Mean-Variance-Optimization (Markowitz) but i never found anything written in php that does this. MVP needs differential calculus. Can it be done in php and why arent there any classes/works from universities? For a webapplication (regarding performance) would another language be the better choice to handle heavy calculations? Thanks so much for any help/answer on this

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• Why would I want to use server-side JavaScript?

  - by Joseph Silvashy

  I'm confused, I regularly read talk of server-side JS, why would I want to use that? It seems like it would execute way slower than pretty much any other language, it also lacks many conventions that more sophisticated languages have. Is it possible to hand entire objects from the client to the server, manipulate them and return them back? Just struggling to understand the concepts of it.

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• How do you make a function read form a txt file and store random lines in a variable?

  - by user309716

  How do you make a function read form a txt file and store random lines in a variable? It will be run over and over in a foreach loop. The language is PHP. Im a new coder so I don't know things like this off the top of my head.

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• Are you a self taught programmer or did you take a programming course?

  - by workinprogress

  Lots of developers I know were self taught programmers including me. I was wondering how much of the developer community learned programming by taking a course in school or by experimenting, asking questions on forums, reading online articles, and just making it up as you go along? Post whether you were self taught or took classes, what language you program in, and anything else that may be interesting. P.S. Books count as self taught.

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• python programme.

  - by siva

  hi, i am siva this is frist time taken the python programming language i have a small problem please help me the question is **Write two functions, called countSubStringMatch and countSubStringMatchRecursive that take two arguments, a key string and a target string. These functions iteratively and recursively count the number of instances of the key in the target string. You should complete definitions for def countSubStringMatch(target,key): and def countSubStringMatchRecursive (target, key): **

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• Does Scheme work with Microsoft COM?

  - by Martin

  I'm new to Scheme -- the functional programming language and I like it a lot for its first-class/higher-order functions. However, my data comes from a COM source with an object-oriented API. I know Scheme and COM belong to different programming paradigms, but I'm wondering if there is any interface or a way for Scheme to connect to a COM source? Thanks.

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• what are minimal requirements for iphone application to be considered localized

  - by Nava Carmon

  Hi, I need my application to be considered localized in order for MFMailComposer to present its fields in localized language. I don't need to localize any strings or xibs. What is the minimum I need to do in order for my application to be considered localized? TIA

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• Is Prince the best way to PDF in Ruby on Rails?

  - by Angela

  After several Google searches, it appears that the way to create PDF's in Rails from HTML and CSS (versus a new markup language) is to use Prince. With licensing at $3800 for my non-big-commercial app, I'm wondering if this is, in fact, consensus or people have an alternative they can share the what's and how's.

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• parallel java libraries

  - by jetru

  I'm looking for Java libraries/applications which are parallel and feature objects that can be queried in parallel. That is, there is/are objects in which multiple types of operations can be made from different threads and these will be synchronized. It would be helpful if someone could ideas of where I could find such applications as well. EDIT: Actually, language doesn't matter so much, so C++, Python, anything is welcome

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• Parsing a string

  - by sfactor

  i have a string of the format SUCCESS,12:34:56:78:90, i want to separate these two values that are separated by commas into two different strings. how do i do that in gcc using c language.

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• C precision of double: compiler dependent?

  - by yCalleecharan

  Hi,on my 32-bit machine (with an Intel T7700 duo core), I have 15 precision digits for both double and long double types for the C language. I compared the parameters LDBL_DIG for long doubles and DBL_DIG for doubles and they are both 15. I got these answers using MVS2008. I was wondering if these results can be compiler dependent or do they just depend on my processor? Thanks a lot...

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• HOw do you combine two foreach loops into one.

  - by Kirk

  The language is PHP. I have one foreach ( $a as $b) and another foreach ($c as $d = $e). How do i combine them to read as one. I tired foreach (($a as $b) && ($c as $d = $e)), but that is rubbish.

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• Decompile an SWF

  - by Belgin Fish

  Hi What language would I need to use to decompile an swf file automatically on my server, not like a desktop app. A bit like http://www.showmycode.com/ And could anyone point me in the right direction to get started?

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• HTML Types - Learning Order?

  - by Gabe

  I've decided that today - as soon as this question is answered, in fact - I'm going to dive into learning HTML. But, looking online, I've noticed there are many types: HTML, XHTML, HTML5, and so on. So, which should I start with? In what order should I learn them? And, for that first language, where should I learn at?

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• Whats for to use GO

  - by Incognito

  I am interested in new language from Google, GO. I have checked the materials in the golang.com. And now want to use GO in practice. Please share any ideas whats for you are using GO. Or are there any open source GO projects that it would be possible to join?

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• validating utf-8 in htaccess rewrite rule

  - by TrustWeb

  i validate urls with utf-8 characters with a rewrite rule RewriteRule ^([a-z]{2})/([a-z0-9-]{1,256})/([[:print:]]{1,256})$ index.php?language=$1&categories=$2&get_query=$3 [L] $get_query is the point, this accepts: test!?!'"<*+ but fails for accented chars as àèéìòù, or other utf-8 for example in wikipedia this works great: http://en.wikipedia.org/wiki/%E6%B1%89%E8%AF%AD_%E6%BC%A2%E8%AA%9E any help? :-)

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• How to create dynamic menulets in OSX

  - by taw

  I want to put a dynamically generated icon (not static image) + possibly a tiny bit of text in OSX menu bar. If possible I'd prefer to do it from Ruby or some other convenient scripting language, but I'll deal with Objective C if that's the only way. How do I do that?

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• What side project/research should be chosen to increase my Marketability

  - by CheesePls

  I am a Junior CS Major at a Javaschool and I find myself having an easy time and thought there may be some good project or a language to learn or research in this newfound free time. What would you recommend so as to increase my ability to find a good job(somewhere that allows for continuous learning and treats its programmers well)after college? My thoughts were learning Scheme, making a working Zelda-like game(the original), find some open source project to help with.

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• How to convert unsigned long to string

  - by Walidix

  In the C language: How do I convert unsigned long value to a string (char *) and keep my source code portable or just recompile it to work on other platform (without rewrite code)

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• Finding a small image in a bigger one

  - by tur1ng

  Given an image with a large dimension ( 1.000 x 1.000). What is a good approach to find a small image (e.g. 50 x 50) in the big one? The smaller image can be rotated and differ in the size, but only with a 1:1 ratio. It's not related to any programming language - I'm just interested in pattern recognition. Thank you.

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• How to Dynamically Allocate Memory Using Assembly and System Calls Under Linux

  - by mudge

  I'm looking for some good code examples of dynamic memory allocation using an assembly language under Linux and using system calls, not malloc and friends. What are some of the simplest but effective ways to do this? On Intel 386+ computers.

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• Localization and JQuery/JavaScript

  - by vikp

  Hi, I'm working on different language packs for my web app. Some of the output is generated by the JavaScript/JQuery and I can't use .aspx.resx resource files within the JavaScript. What options do I have in order to localize output produced by the client? Thanky you

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• how to get selected value from databound multiextended listbox

  - by rip

  I am using visual studio 2008 with vb as my language. I have a databound multiextended listbox. I need to get the selected value for each item that is selected. I have searched for two weeks trying to find and answer. Can anyone help? I would greatly appreciate it.

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• C++ Win32 API equivalent of CultureInfo.TwoLetterISOLanguageName

  - by Brian Gillespie

  The .NET framework makes it easy to get information about various locales; the Win32 C++ APIs are a bit harder to figure out. Is there an equivalent function in Win32 to get the two-letter ISO language name given an integer locale ID? In C# I'd do: System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo(1034); string iso = ci.TwoLetterISOLanguageName; // iso == "es" now.

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• Location detecting tecniques for IP adresses

  - by ilhan

  What are the location detecting tecniques for IP adresses? I know to look at the $_SERVER['HTTP_ACCEPT_LANGUAGE'] (not accurate but mostly useful to detect location, for example if an IP range's users set French to their browser then it means that this range belongs to France gethostbyaddr($_SERVER['REMOTE_ADDR']) then may be to whois gethostbyaddr($_SERVER['REMOTE_ADDR']) sometimes $HTTP_USER_AGENT (Firefox's user agent string has language code, not accurate but mostly can be used to detect the location) But what about cities?

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