What is the variable for subtract ?

Discussion in 'iOS Programming' started by redchannel, Jun 18, 2009.

  1. redchannel macrumors regular

    redchannel

    Joined:
    Nov 23, 2008
    #1
    I know the variable for addition is sum.
    what is the variable for subtraction ?
     
  2. admanimal macrumors 68040

    Joined:
    Apr 22, 2005
    #2
    Generally speaking, the names of variables are irrelevant to what you are actually doing with them.
     
  3. redchannel thread starter macrumors regular

    redchannel

    Joined:
    Nov 23, 2008
    #3
    Can someone just tell me what the variable for subtract is ? thats all i want
     
  4. admanimal macrumors 68040

    Joined:
    Apr 22, 2005
    #4
    Frankly I don't think anyone understands what exactly you are asking.

    I took a guess and am telling you that there is no variable name that has to be used with addition nor subtraction. You can call variables whatever you want.

    I can say

    Code:
    int sum = 5 / 2; 
    
    and Objective-C (or any other language) would be perfectly happy with that.

    If you are just interested in the mathematical term for the result of a subtraction for trivia's sake, that would be difference.
     
  5. CocoaPuffs macrumors 68010

    Joined:
    Aug 23, 2008
  6. jerrywickey macrumors member

    Joined:
    Apr 16, 2009
    Location:
    Key West
    #7
    reading you question literally, I think you mean what variable must you place the difference. "difference" is the word mathamaticians use to decribe the result of a subtraction.

    But for coding.

    sum = 1 + 2
    thing = 1 + 2
    var1 = 1+ 2

    dif = 3 - 1
    thing = 3 - 1
    (even)
    sum = 3 -1

    will all accomplish just what they look like they will accomplish

    sum = 9 -1
    sum = sum - 5

    results in, sum containing 3

    You get to choose what the variable name is.

    Jerry
     

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