Frink is a calculating tool and programming language designed to help you in the real world. It tracks units of measurement throughout all calculations and ensures that answers are correct. It converts between systems of measurement and has a huge library of physical data. It handles conversions between time zones, currencies, and historical values of the U.S. dollar and the British pound, translates between several languages, does date/time math, and more. License: Other/Proprietary License Changes: This release adds a sum[x] function to sum the elements of an array or of an enumerating expression.

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