Fp days
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This document discusses errors that commonly occur in Excel spreadsheets. It notes that over 1% of formula cells contain errors, 88% of Excel spreadsheets contain errors, and large spreadsheets have more than 12 errors on average. Even renowned economists have made mistakes by incorrectly selecting columns in Excel that had substantial effects. Functional programming is presented as an alternative that offers benefits like type safety, testability and auditability to reduce errors.
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