Thread: quick question

  1. #1
    Registered User
    Join Date
    Feb 2003
    Posts
    33

    quick question

    lets say you have a bunch of ints, and you want to find the average in a float, so you add them all together and divide by how many (25 in my case), but like do i need to cast the int to a float before dividing because i have

    float ave;
    int sum;

    ave = sum / 25;

    and the answer is never correct :-( i know this is a simple question but i think i was asleep when we went over it in class

    thanks guys

  2. #2
    Casual Visitor
    Join Date
    Oct 2001
    Posts
    350
    Code:
    #include <stdio.h>
    
    int main()
    {
       int total, tests;
       float ave;
       
       total = 5, tests = 439;
       ave = (float)tests / (float)total;
       
       printf("%.2f", ave);
       
       return 0;
    }
    Is that what you're after? You should be able to cast either int to get a floating point.
    I haven't used a compiler in ages, so please be gentle as I try to reacclimate myself. :P

  3. #3
    Registered User
    Join Date
    Feb 2003
    Posts
    33
    oh thanks i kept doing num (float) / 25

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