Re:Decimal Is Sometimes Wrong
by benrutter on Friday November 28, 2025 @03:15PM
(#46082382)
I enjoyed reading this! It's not always possible but finance data that translates directly into cents/euro-cents/pence/yen/etc is really nice to work with as integers. Obviously as soon as you need to divide that stops being such a solid strategy though. . .
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Thanks!
And you're right this is true for storage and at the transaction level where nothing smaller than, e.g., a penny is allowed to move or exist in the first place. But when you're working with interest rates and the main calculations involve multiplying by numbers < 1, you still have to figure out rounding.