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• Determine the relative complement of two IEnumerable<T> sets in .NET

  - by SFun28

  Is there an easy way to get the relative complement of two sets? Perhaps using LINQ? I have to find the relative compliment of a set A relative to B. Both A and B are of type HashSet<T> but I think the algorithm could be made more general (IEnumerable<T> or even ISet<T>)? I could use a solution in either VB.NET or C#.

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• WPF Coordinates of intersection from two Line objects

  - by Becky Franklin

  I have two Line objects in C# WPF, and I'm trying to construct a method to work out the coordinates at which the lines intersect (if at all). After giving myself a headache reminding myself of high school maths to do this, I can't work out how to map it into programming format - anyone know how to do this? Thanks very much, Becky

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• I have two problems about tcpdf

  - by cubuzoa

  Hi i am using tcpdf in my application and i have two question about that.I am able to get pdf output of a html page when i click specified button. My first question is:How can i download that html's pdf output when i click that button?($pdf-lastPage() didn'work). My second question is:How can i set character encoding for Trkish?(I am using dejavusans but some turkish characters appears as question mark) Thank for advance...

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• Print two-dimensional array in spiral order

  - by Rahul Vyas

  How do I print a 5×5 two-dimensional array in spiral order? Is there any formula so that I can print an array of any size in spiral order?

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• sql question Select * From * where one=two order by

  - by sebastian

  Hi, I need some help with a query. i want to select from a table, some values, but the values depend on the value of an other cell. after i select i need to sort them. Can i use ELECT column FROM table WHERE one=two ORDER BY ...? thanks, Sebastian

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• bash, Linux: Set difference between two text files

  - by Adam Matan

  Hi, I have two files nodes_to_delete and nodes_to_keep. Each file has a many lines with numeric ids. I want to have the list of numeric ids that are in nodes_to_delete but NOT in nodes_to_keep. Adam

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• How to add two numbers like 7 and 6 = 76 or 3 and 3 = 33

  - by Flocked

  Hello, sorry for my bad title (and noob question), but how can I add two numbers like 7 and 6 and the result should be 76. Is there a operation symbol in objective-c? Thanks and sorry for my bad English.

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• how to instruct bison that I'm expecting TWO or more terminals

  - by Vincenzo

  How can I define a rule in BISON that will state that I need two or more terminals. I use it like this and I get a shift/reduce conflict: word: LETTER | word LETTER; words: word word | words word; What's wrong here? And how to correct it?

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• jQuery UI: Two semicolons after logical expression with function wrapper

  - by Vincent

  I was looking at some jQuery UI code, a found a weird behavior there: jQuery.ui||(function(a){ /*... */ })(jQuery);; The logical OR is clear for me, the function wrapper (still searching the correct name for it), too, but why two semicolons? Thanks in advance Vincent

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• Have form do two things on submit HTML

  - by Belgin Fish

  Hey, I'm just wondering if it's possible to have a form in html do two things on submit, have the action go to a url like normal (for a search) but also run a mysql command. Thanks!

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• Find distance between two points using MKMapKit

  - by mag725

  Hi, I'm attempting to find the euclidean distance in meters between two points on an MKMapView using iPhone OS 3.2. The problem is that I have these coordinates in terms of latitude and longitude, which, mathematically provides me enough data to find the distance, but it's going to take some tricky trigonometry. Is there any simpler solution? Thanks!

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• How can I combine two conditions in Perl?

  - by yael

  I have two Perl one liners: perl -pe "s/\b$a\b/$b/g if m/param1 /" test and perl -pe "s/\b$a\b/$b/g unless /^#/" test How can I combine theif m/somthing/ and the unless /something/, like: [root@localhost tmp]# perl -pe "s/\b$a\b/$b/g if m/param1/ unless /^#/" test syntax error at -e line 1, near "m/param1/ unless"

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• Using two struts2 taglibs in each other

  - by Milad.KH

  Hi I want to use two struts taglib in each other, something like this: < s:properties value="url-< s:properties value="number"/"/ or < s:properties value="url-${number}"/ but I got the following error in the second one: According to TLD or attribute directive in tag file, attribute values does not accept any expressions. Anybody has a solution ? Thanks

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• Seam IllegalStateException: Two components with the same name and precedence

  - by Anand

  Hi, When I run my seam application I get the following error Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener java.lang.IllegalStateException: Two components with the same name and precedence - component name: wizardController, component classes: package.WizardController, package.WizardController at org.jboss.seam.init.Initialization.addComponentDescriptor(Initialization.java:543) at org.jboss.seam.init.Initialization.installScannedComponentAndRoles(Initialization.java:809) at org.jboss.seam.init.Initialization.scanForComponents(Initialization.java:756) at org.jboss.seam.init.Initialization.init(Initialization.java:629) at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:35) I am not able to resolve this problem.

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• Calculate direction angle from two vectors?

  - by james.ingham

  Hi, Say I have two 2D vectors, one for an objects current position and one for that objects previous position. How can I work out the direction of travel? This image might help understand what I'm after: Thanks -James

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• Common elements between two lists not using sets in Python

  - by Thomas

  I want count the same elements of two lists. Lists can have duplicate elements, so I can't convert this to sets and use & operator. a=[2,2,1,1] b=[1,1,3,3] set(a) & set(b) work a & b don't work It is possible to do it withoud set and dictonary?

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• WPF Validation on two properties

  - by morsanu

  I have a user control that contains a border somewhere in it. I am able to edit both the User Control Width and the Border Width from binding to two textboxes. I need to include validation when I create the binding in code so that the Border Width can't be higher than the User Control Width.

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• Can we have Same Delegate for Two Events

  - by Asim Sajjad

  Can we have same delegate for two events ? which have same number of input parameters? or delegate and the events have one to one relation ?

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• finding distance between two UK addresses

  - by effkay

  Hello; I need to write an application which is to calculate the estimated driving distance between two UK addresses; I think I can use Google as following: http://maps.google.com/maps/nav?q=from:London%20to:Dover However, anyone knows what is the daily/monthly limit of querying the database from a single IP address? I need to implement in a commercial application (freight services), is there any reliable alternative? Development language/platform: C#, .NET Regards,

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• How to display two-rows bracket in Latex?

  - by niko

  Hi, Does anyone know how to modify the following string in order to display the two-lines bracket? str = '$$c_i =\{\begin{array}{l l} 1 \quad L\left(Q_i\right) < 0 \\ 0 \quad L\left(Q_i\right) \geq 0 \\ \end{array}$$'; The current output is the following: The sign '{' has to embrace both rows (1 and 0).

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• Using PyLab to create a 2D graph from two separate lists

  - by user324333

  Hey Guys, This seems like a basic problem with an easy answer but I simply cannot figure it out no matter how much I try. I am trying to create a line graph based on two lists. For my x-axis, I want my list to be a set of strings. x_axis_list = ["Jan-06","Jul-06","Jan-07","Jul-07","Jan-08"] y_axis_list = [5,7,6,8,9] Any suggestions on how to best graph these items?

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• Play two videos with MPMoviePlayerView Controller

  - by Juanjo Guevara

  Hello, I am developing an application for IPAD and I need to play two videos one after another but can not find how. I'm using MPMoviePlayerViewController to do it and do not know how to launch a share after the first video to be played and start the second. Can someone help?

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• Need to combine common result of two select statements

  - by Anup

  i have to select the common coloumns c1 ,c2,c3 from result of two sql satements. 1) select c1, c2, c3,count(c3) from (select * from form_name where data_created >'1273446000' and data_creazione<'1274569200') group by c1,c2, c3 having count(c3)>1 2) select c1, c2, c3,count(c3) from (select * from form_name where data_created>'1272236400' and data_creazione<'1274569200') group by c1,c2, c3 having count(c3)>2 I need to select c1,c2,c3 all same and common found in both the result of query. how could this be done...could anyone help please?

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• If-Statement checking vor a value between two others

  - by iFloh

  Is there a kind of "between" check I can use in an if-statement that verifies whether a given float value is between two others? Can I write something like if (floatConstA <= checkFloatValue < foatConstB) { or must I do this using AND/OR constructs?

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• C# Double - ToString formatting with two decimal places and no rounding

  - by iulianchira

  How can i format a Double to String in c# so as to have only two decimal digits? If I use String.Format("{0:0.00}%", myDoubleValue) the number is rounded, and i want a simple truncate without rounding. Also, I want the conversion to String to be culture sensitive.

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