Frink is a programming language designed to make physical calculations simple

1. rink-rs

   1 6 501 6.4 Rust

   Unit conversion tool and library written in rust

   

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3. FsFrink

   2 1 5 10.0 F#

   An effort to bring frinklang.org UoMs into F# ecosystem

   

   I came across this repo where someone actually took the time to convert Frink's unit data to F# (which also supports units of measure) and I got to wondering if Frink's inspired it.

   https://github.com/avestura/FsFrink

   BTW, I'd love to see more mainstream languages consider features like units of measure. I understand the tech-debt it would likely-incur, but I think it would be a fun mental exercise to really go through the different languages and ask how one might add units of measure.

   For example, in F#, the units are erased when they're compiled, so there is no runtime support for units. But I could imagine a dynamic/weaker typed language implementing it with runtime support where units are implemented like atomic symbols that are paired with numbers. Maybe each compound unit could be represented with a unique symbol that's created at runtime.

   Personally, I don't think languages explore enough with interesting literals. Combining units with non-numeric types like strings might make interpolation a little more interesting.

4. units

   3 1 99 2.5 Haskell

   The home of the units Haskell package (by goldfirere)

   

   It seems to me that Haskell would be a great language for such a thing, ensuring correctness at compile time through the type system, e.g. using the units package https://hackage.haskell.org/package/units https://github.com/goldfirere/units/tree/master/units

   It even has nice features like: "The laws of nature have dimensions, and they hold true regardless of the units used. For example, the gravitational force between two bodies is (gravitational constant) * (mass 1) * (mass 2) / (distance between body 1 and 2)^2, regardless of whether the distance is given in meters or feet or centimeters. In other words, every law of nature is unit-polymorphic."

   "The units package supports unit-polymorphic programs ..."

5. unitdc-rs

   4 2 4 6.7 Rust

   A dc-like arbitrary precision quantity calculator.

   

   I found this one, but I haven't tested it:

   https://github.com/eternal-flame-AD/unitdc-rs

   I ran across it because I wanted to know if dc, the old Unix rpn calculator, could do units.

6. dimensioned

   5 2 302 0.0 Rust

   Compile-time dimensional analysis for various unit systems using Rust's type system.

   

   Rust as well. There are at least a few libraries to do it, but I'll link the one I wrote:

   https://crates.io/crates/dimensioned

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