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CEILING() Bug???

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    CEILING() Bug???

    Hey all,

    Can anyone confirm the following:

    If calculating a expression using CEILING() the result is incorrect. Seee the result from the interactive editor below:

    ?5800*.07
    = 406.000000

    ?ceiling(.07*5800)
    = 407.000000

    I would like to add this happens in V5 also.

    Thanks,

    Scott

    #2
    RE: CEILING() Bug???

    Scott

    Good old fashion real to integer errors.

    Tried this

    ?10000000000*.07*5800
    = 4060000000000.000500

    So the error is a ways down the line, but it is there. Gotta watch those decimals.

    You could do this.

    ?10000000000*round(.07*5800,4)
    = 4060000000000.000000
    Al Buchholz
    Bookwood Systems, LTD
    Weekly QReportBuilder Webinars Thursday 1 pm CST

    Occam's Razor - KISS
    Normalize till it hurts - De-normalize till it works.
    Advice offered and questions asked in the spirit of learning how to fish is better than someone giving you a fish.
    When we triage a problem it is much easier to read sample systems than to read a mind.
    "Make it as simple as possible, but not simpler."
    Albert Einstein

    http://www.iadn.com/images/media/iadn_member.png

    Comment


      #3
      RE: CEILING() Bug???

      Al,

      Thanks ... The following also works, it just caught me by surprise.

      ?ceiling(int(.07*5800))
      = 406.000000

      Scott

      Comment


        #4
        RE: CEILING() Bug???

        But won't this obviate the purpose of ceiling since:
        ceiling(int(406.1))=406

        Bill
        Bill Hanigsberg

        Comment


          #5
          RE: CEILING() Bug???

          good point Bill .........

          I never believed what they said about you ;)...lol

          Comment


            #6
            RE: CEILING() Bug???

            how about this:
            ?ceiling(round(.07*5800,4))
            =406.000000
            using round to limit the number of decimal places rids us of the tiny error.

            If you change the 4 to 12 the expression yields 407.

            Bill
            Bill Hanigsberg

            Comment


              #7
              RE: CEILING() Bug???



              ... and you can limit the number of decimal places to 1 because you use the ceiling function to make an integer.

              Ton
              Most things are simple but unfortunately only after the first time

              Comment


                #8
                RE: CEILING() Bug???

                Why not do like people from Granada and Jamaica this week and forget about the CEILING:

                ?round_up(5800*.07,1)
                = 406.000000

                Steve

                Comment


                  #9
                  RE: CEILING() Bug???

                  'Sorry. That should have been:

                  ?round_up(5800*.07,0)
                  = 406.000000

                  Comment

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