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Re: rounding a float
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Re: rounding a float


  • Subject: Re: rounding a float
  • From: Rainer Brockerhoff <email@hidden>
  • Date: Mon, 1 Dec 2003 22:55:39 -0200

At 19:48 -0500 01/12/2003, Jay Rimalrick wrote:
>ok say I wanted to divide 1.23 by 2
>
>i would really behind the scenes I would take 123/2 which would give me 61.5
>and which is 61 in integer form ... I lose the .5 which i need it to round up to
>62.
>
>I display it as (123/2)/100 which is .61 .... I lose that cent :-(
>
>please correct my understanding above and let me know if I am still not
>getting it.

Correct. If you want to round up do: ((123+1)/2)/100. The extra 1 is half of what you're dividing it by (in this case 2).

--
Rainer Brockerhoff <email@hidden>
Belo Horizonte, Brazil
"It's extremely unlucky to be superstitious, for no other reason
than it is always unlucky to be colossally stupid." (Stephen Fry)
Weblog: http://www.brockerhoff.net/bb/viewtopic.php
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