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Thread: unix help

  1. #1
    Join Date
    Oct 2006
    Posts
    6

    Unanswered: unix help

    if anybody can help with this please

    write a simple script. is working properly.
    Look at the following examples:
    Example 1:
    [min@alpha min]$ ./lastname
    Enter an integer number:
    3
    You entered 3

    The sum of all the integers from 0 to 3 is 6
    The integer 3 that you entered is odd

    Example 2:
    [min@alpha min]$ ./lastname
    Enter an integer number:
    4
    You entered 4

    The sum of all the integers from 0 to 4 is 10
    The integer 4 that you entered is even
    Note: Your lastname script must do 3 things:
    1) Display which integer the user has entered. For example, if the user enters 3 then lastname script says "You entered 3"
    2) If the user enters an integer. For example, 3 then 1+2+3=6, 4 1+2+3+4=10, or 100 1+2+3+...+100=5050.
    the script will have to identify if the user input integer is odd or even and display accordingly. For example, if the user enters 3 it should display "The integer 3 that you entered is odd" or if the user enters 4 it should display "The integer 4 that you entered is odd

  2. #2
    Join Date
    Aug 2006
    Location
    The Netherlands
    Posts
    248
    I don't get it, everything you need to know is here http://www.dbforums.com/showthread.php?t=1610157...

  3. #3
    Join Date
    Oct 2006
    Posts
    6

    hey!

    i got it to say the number i put, and to figure out the odd and the even, i just need the addition between 0 and the integer i input i just the formula.

  4. #4
    Join Date
    May 2005
    Location
    South Africa
    Posts
    1,365
    Provided Answers: 1
    Code:
    i=4  # Read from input
    oddeven[0]='even'
    oddeven[1]='odd'
    echo "The integer $i is ${oddeven[$(($i%2))]} and the sum is $(($i*($i+1)/2))"
    Formula: http://mathworld.wolfram.com/Sum.html
    Last edited by pdreyer; 11-15-06 at 03:10.

  5. #5
    Join Date
    Jun 2003
    Location
    West Palm Beach, FL
    Posts
    2,713

    Cool

    Quote Originally Posted by nyst8fmind
    i got it to say the number i put, and to figure out the odd and the even, i just need the addition between 0 and the integer i input i just the formula.

    Try this formula:
    Code:
    ((sum = n * (n + 1) / 2))


    The person who says it can't be done should not interrupt the person doing it. -- Chinese proverb

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