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• regular expressions: ignoring certain chars globally

  - by shi kui

  Consider it that '_'s in a number doesn't change that number's value so 1000==1_000==10_00. The Problem: given numbers like 1_244_23 1412_2 1_1111 etc..., how could I decide whether certain number appears in that collection? For example: 1244_23 yes, 11_111 yes, 1412_1 no. How could using regex to solve this? I mean, if I could tell the regex engine just ignore these '_''s when matching then this problem becomes trivial? How could I do so?

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• Standard library function in R for finding the mode?

  - by Nick

  In statistical language R, mean() and median() are standard functions which do what you'd expect. mode() tells you the internal storage mode of the R object, not the value that occurs the most in its argument. But surely there is a standard library function that implements mode for a vector (or list).

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• How to know if a cell has an error in the formula in C#

  - by Pascal

  In an Excel formula you can use =ISERR(A1) or =ISERROR(A1) In a VBA macro you can use IsError(sheet.Cells(1, 1)) But using a VSTO Excel Addin project I did not found similar function under the Microsoft.Office.Interop.Excel API. My current workaround is to do this for all the existing error messages.: if (((Range)sheet.Cells[1, 1]).Text == "#N/A" || ...) Is there a better way to do this. I mean built in the API?

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• C++. What is a subprogram and method?

  - by xbonez

  I have a CPP HW to be done. One question is: 1) Write a subprogram (not a method) void promptForMovie(Movie & myMovie) that ..... 2) Write a method void output(ostream & out); that .... My question is what exactly is a subprogram and a method? Which one of them means a function, and what does the other mean? Thank you

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• Android & Web: What is the equivalent style for the web?

  - by Legend

  I am quite impressed by the workflow I follow when developing Android applications: Define a layout in an xml file and then write all the code in a code-behind style. Is there an equivalent style for the web? I mean, with a predefined list of widgets that can be defined using a markup language and then control them using code? I have come across Google's Web Toolkit that does something like this but I'd like to hear what other's think as well.

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• What exactly is the Nullify delete rule doing?

  - by dontWatchMyProfile

  Does that mean that if I delete an managed object which has references (relationship) to some others, the relationships are removed to those others? Example: objectA references objectB and objectC. objectA gets deleted, it's relationship to objectB and objectC is set to the Nullify rule. What happens in detail?

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• How would someone go about implemention mathematical formulas in java?

  - by Mohit Deshpande

  What I mean is like have to user input a string with multiple variables and get the value of those variable. Like a simple quadratic formula: x^2 + 5x + 10. The user would then enter that and then the program would solve for x. I will be using the BeanShell Interpreter class to interpret the string as an equation. But how would I solve for x?

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• How would someone implement mathematical formulae in java?

  - by Mohit Deshpande

  What I mean is like have to user input a string with multiple variables and get the value of those variable. Like a simple quadratic formula: x^2 + 5x + 10. Or in java: (Math.pow(x,2)) + (x * 5) + 10The user would then enter that and then the program would solve for x. I will be using the BeanShell Interpreter class to interpret the string as an equation. But how would I solve for x?

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• Can I make Emailing an address that forwards back to me appear in the inbox?

  - by Zach L

  I have a gmail address that's my primary email. I have a couple short email addresses on my own domain that I have set to forward to the gmail acct. For various reasons, I like to email these addresses from my gmail account (which then forward back to myself). The frustration is, these emails do not show up in my inbox - only the ALL MAIL tab. There's a filter for skip the inbox. Why can't there be one for put it in the inbox?

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• Someone created a mirror image of my website

  - by kip

  Playing around with google I discovered that someone with a .me (Montenegro I presume) url is running a mirror of my website. I don't really know where to go with this. Does this mean someone has access to my VPS? Or what is going on here?!

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• Why we don't have to add try-catch to a RuntimeException ?

  - by M.H

  Hi,I want to ask why we don't have to add try-catch block to a RuntimeException while we should do that with other exceptions ?I mean like : public class Main { public static void main(String[] args) { throw new RuntimeException(); } }

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• How to emulate OOP with C?

  - by Francisco Garcia

  I would like to know which articles or books are good to use OOP concepts in C. I mean things like using function pointers to emulate classes, strict naming conventions to emulate namespaces, and things like that. Also a reference about how to code in C different types of UML diagrams would be great.

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• I want to generate DDL for entire schema in oracle 10 G ?

  - by gnash-85

  Hi Experts, I am using Oracle 10G. I am new to oracle, I have little bit regarding dbms_metadata.get_ddl, now using this utility i want to generate a DDL for my entire schema. I mean what ever DDL operations done on my schema (testschema). Please help me out. Thanks Nash.

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• Parameters in stored procedures in SQL Server

  - by Sanju

  How many types of parameters are there in a stored procedures and what are they? Thanks in advance. And can we delete a table using view? I think yes but in what situation we can't delete it if there are no trigger associated with that table. I mean to say i need to delete a table which has no trigger associated with it using view, in which case i can't delete it?

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• when setting a property does the property name always change to camelcase?

  - by TheLearner

  So if a have this property: @property (nonatomic, retain) MKReverseGeocoder *reverseGeocoder; and i want to set it, does the case always change: [self setReverseGeocoder: ... Seems a bit weird to get used to! I mean the property name is lower case!

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• Why can operator-> be overloaded manually?

  - by FredOverflow

  Wouldn't it make sense if p->m was just syntactic sugar for (*p).m? Essentially, every operator-> that I have ever written could have been implemented as follows: Foo::Foo* operator->() { return &**this; } Is there any case where I would want p->m to mean something else than (*p).m?

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• How to show a picture using GDI?

  - by moon

  it is possible to display a picture on a window created by winmain i mean using GDI, i want do create a window that captures my whole screen i have done that by using GDI but unable to show an image on it how can i do so?

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• order keywords by frequency in PHP mySql

  - by Gusepo

  Hello, I've got a database with video ids and N keywords for each video. I made a table with 1 video ID and 1 keyword ID in each row. What's the easiest way to order keywords by frequency? I mean to extract the number of times a keyword is used and order them. Is it possible to do that with sql or do I need to use php arrays? Thanks

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• What is SWIG and for what it is used for

  - by Mirage

  I just on internet the Google is using swig. Does any one have used that and tell me will it be helpful for me. I mean why it is used and how it can make my work good. As google is using it must be good

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• Implicit conversion while using += operator?

  - by bdhar

  Conside the following code: int main() { signed char a = 10; a += a; // Line 5 a = a + a; return 0; } I am getting this warning at Line 5: d:\codes\operator cast\operator cast\test.cpp(5) : warning C4244: '+=' : conversion from 'int' to 'signed char', possible loss of data Does this mean that += operator makes an implicit cast of the right hand operator to int? P.S: I am using Visual studio 2005

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• C++ character to int

  - by Vit

  Hi, what happens when you cin letter to int variable? I tried simple code to add 2 int numbers, first read them, than add them. But when I enter letter, it just fails and prints tons of numbers to screen. But what causes this error? I mean, I expected it to load and use ASCII code of that letter.

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• Help me to understand the termination parameter of this C++ for loop

  - by typoknig

  I do not understand the termination parameter of this for loop. What does it mean? Specifically, what do the ?, -, and : 0 represent? for( i = 0; i < (sequence ? sequence->total : 0); i++ )

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• Where can I find Python tutorials aimed at people who are already programmers?

  - by Chris R

  I'm a reasonably skilled programmer, and I'm interested in branching out into some new languages -- python, specifically -- but frankly I do NOT want to go through a tutorial that assumes I know nothing about programming. I want a tutorial -- again, preferably for python -- that assumes I'm just unfamiliar with the language itself and describes the ways I can use the language to solve problems. Does such a beast exist? I mean, other than the Python wiki?

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• Does learning more about math help in software development ?

  - by Mahesh Velaga

  I am thinking of spending some time in learning more math, will it be helpful for me as a software developer? I mean to ask, if it will be worth the effort to spend that extra time on math rather than spending it on something else?

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• Copy/Paste including Hidden Columns when Filtering Rows in Excel 2010

  - by hudsonsedge

  I suspect the solution will be related to this question?? I have a spreadsheet that comes to me pre-formatted with hidden columns sprinkled in multiple places (for viewing brevity's sake). I need to turn on filtering, apply a filter to one of the columns, and then paste the resulting rows to a new sheet - including the hidden columns (lather, rinse, repeat). I'd prefer to not undo/re-do the hidden columns unless I have to. Is it possible to paste the hidden columns without adding the extra steps?

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