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  • A question about matrix manipulation

    - by appi
    Given a 1*N matrix or an array, how do I find the first 4 elements which have the same value and then store the index for those elements? PS: I'm just curious. What if we want to find the first 4 elements whose value differences are within a certain range, say below 2? For example, M=[10,15,14.5,9,15.1,8.5,15.5,9.5], the elements I'm looking for will be 15,14.5,15.1,15.5 and the indices will be 2,3,5,7.

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  • Which mysql construct is faster?

    - by Olaseni
    SELECT ..WHERE COL IN(A,B) or SELECT ... WHERE (COL = A or COL = B) I'm trying to find out what are the differences between the two constructs? Would there be significant performance gains either way if utilized on resultsets that are nearing the 1 million mark?

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  • Compare two fxcop results

    - by excepeiont32
    Hi, I'm going to analysis two different versions of the same dll with fxcop. I would like to display only the differences between these two reports. Does anyone know if this is possible ? Thanks for your time.

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  • settings file vs app.config

    - by fearofawhackplanet
    I'm not really understanding the interaction/differences between settings and config files. If I add an entry to the settings file, it gets added to the app.config as well. Does this mean that changing the value in the app.config will update the settings? If not, how do I update settings in a live application? What's the general purpose of using a settings file instead of putting things directly in app.config?

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  • What difference between Web Apps & Descktop app shoud one keep in mind to model the system right?

    - by simple
    Sometimes it seems like some architectural techniques are not for the Web application I am building and then I just go and code =(, Though I really want to make a habit to architect system before moving to the code, as when I just code I endup writing some useless components which then I rewrite =(, So can you just point out some differences between web apps and desktop ones ?

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  • difference between C(gcc 4.3.2) , C 99 strict(gcc 4.3.2) , C++(gcc-4.0.0-8) ,C++(gcc-4.3.2)

    - by user1139048
    I have the following questions concerning the differences between the four options: What is the main difference between the four options? Which of the above support int64_t or long long without suffix LL. I want a data type of the range 2^63 - 1 If your answer to my second question is not C(gcc 4.3.2) , whether the code I write in C(gcc 4.3.2) for C language will be valid in rest of the three options or do I have to modify something, then what will be those modifications.

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  • Show a form from another form

    - by M.H
    Hi,When I want to Display a from (C#) by clicking a button in another form I usually create an object form the form that I want to show and use the show method : Form2 f2 = new Form2(); f2.Show(); or I work with the "Owner" : Form2 tempForm = new Form2(); this.AddOwnedForm(tempForm); tempForm.Show(); the tow ways generate the same results but what is the best and what are the differences between them?

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  • Using [self method] or @selector(method)?

    - by fuzzygoat
    Can anyone enlighten me as to the differences between the two statements below. [self playButtonSound]; AND: [self performSelector:@selector(playButtonSound)]; I am just asking as I had some old code that used @selector, now with a little more knowledge I can't think why I did not use [self playButtonSound] instead, they both seem to do the same as written here. gary

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  • C# BestPractice: Private var and Public Getter/Setter or Public Var

    - by Desiny
    What are the advantages and differences between the below two coding styles... public void HelloWorld () { private string _hello; public string Hello { get { return _hello; } set { _hello = value; } } } or public void HelloWorld () { public string Hello { get; set; } } My preference is for short simple code, but interested to hear opinions as I see many developers who insist on the long route.

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  • Rsync friendly gzip

    - by Pacifika
    I must not be the only one - I'm rsyncing .tar.gz files and notice that every time the full file gets rsynced rather than the differences. Reading into it it seems back in 1999 someone created an algorithm that fixed the issue http://svana.org/kleptog/rgzip.html (only 5% of data needed transferred) Has this gone anywhere since, how do I create rsync friendly .tar.gz files?

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  • C# empty statement

    - by dotnetdev
    In C#, I can write something like: using (new MyDisposableClass().MethodA()); The semicolon causes a compiler warning to be shown which states possible mistaken empty statement. I haven't run the above code but won't the method still be called? What uses is there of this type of coding convention? I saw another thread on here about this but I ask in case there areny differences now/therefore different replies. Thanks

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  • Generic DRM (Distributed resource management) wrapper

    - by Pavel Bernshtam
    I need to write a software, which launches DRM jobs in a customer environment and monitors those jobs status. It should work with various customer environments and DRMs - like LSF, Sun Grid and others. Can you recommend some 3rd party library, which hides DRM differences from me and has API like "launch job", "get list of jobs", "get job status" etc. ? Both Java and native libraries are good for me.

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  • binlog_format = STATEMENT and CURRENT_TIMESTAMP with MySQL replication

    - by xma
    Hi, can a MySQL slave instance have different row values for the same ID when binlog_format is set to STATEMENT and we insert something like: insert into foo values(CURRENT_TIMESTAMP) As I understand it, the slave read the SQL statement and execute it thus, if the replication is lagging, could lead to differences for the same row. Right or wrong ? How can I avoid this situation ? Thank you.

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  • If i write in assembly or machine language, will the program work on any computer with a compatible processor?

    - by user663425
    Basically, i'm wanting to know if i can use either machine or assembly language to write a program that will work on any computer with an x86 processor, despite differences in operating systems. For example, you run a program and no matter what computer it's on, it'll display "Hello, World!" I know it's a little crazy to want to know either of these to languages, but i figure it's an incredible thing to learn, so why not?

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  • syntax difference between ruby and python?

    - by fayer
    i wonder if there are tutorials that go through the syntax differences for ruby and python? i have seen a comparison between ruby and php but not between ruby and python. i have looked at both ruby and python but it would be very useful with this side-by-side comparison for deciding which one to choose. thanks

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