How to round currency values [migrated]

Posted by Kenny on Programmers See other posts from Programmers or by Kenny
Published on 2011-07-01T14:03:43Z Indexed on 2011/07/01 16:30 UTC
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algorithms

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money

I already have several ways to solve this, but I am interested in whether there is a better solution to this problem. Please only respond with a pure numeric algorithm. String manipulation is not acceptable. I am looking for an elegant and efficient solution.

Given a currency value (ie $251.03), split the value into two half and round to two decimal places. The key is that the first half should round up and the second should round down. So the outcome in this scenario should be $125.52 and $125.51.

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