Thread: Anyone here good with math?

  1. #1
    Un Artiste Extraordinaire volk's Avatar
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    Dec 2002

    Question Anyone here good with math?

    I didn't take statistics yet, but, anyway, how would you calculate the standard deviation of 10, 33, and 50 using C language?

  2. #2
    Registered User Draco's Avatar
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    Apr 2002
    all you have to do is use the same formula(s) as the math gives you. You probably don't need to do anything special. You should look in an encyclopedia, a library, or just on the internet for how to do a standard deviation. That isn't really a programming question anyway.

  3. #3
    Back after 2 years Panopticon's Avatar
    Join Date
    Dec 2002
    int scores[100],amount; //null terminated, max 99 scores
    long int total=0;
    double average,answer;
    long double numerator=0;
    //assuming scores[] is still null terminated
    for(amount=0;scores[amount];amount++) total+=str[amount];
    //amount has number of scores
    for(int i=0;scores[i];i++) numerator+=((scores[i]-average)*(scores[i]-average));
    Im pretty sure I got the equation for S.D right. You may want to verify.
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