GNU Units

1. gnu-units

   1 6 15 0.0 C

   GNU Units (mirror)

   

   Does the GNU projet makes it repositories available online ?

   I'd like to have a look at the code but all I found is an outdated mirror : https://github.com/ryantenney/gnu-units

2. InfluxDB

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   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. uom-se

   2 1 33 4.5 Java

   Discontinued JSR 363 - Implementation for Java SE 8

   

   Looks like it is comparable to javax.measure (https://jcp.org/en/jsr/detail?id=363). I used an implementation of that a few years ago: https://github.com/unitsofmeasurement/uom-se

   It's a complex domain, especially if you get down to having more complex units composed of other units and want to do conversions between metric and imperial. In our case we were dealing with material properties (chemical, physical, magnetic, etc.) and different countries and companies using different ways to record characteristics for materials.

4. unix-history-repo

   3 57 6,660 0.0 Assembly

   Continuous Unix commit history from 1970 until today

   

   Or if you'd rather see it in git https://github.com/dspinellis/unix-history-repo/blob/BSD-4-S...

5. insect

   4 25 3,179 1.8 PureScript

   Discontinued High precision scientific calculator with support for physical units

   

   Thanks, I did not know that units is able to work with constants. I always used Insect[0] for this.

   0: https://github.com/sharkdp/insect

6. Unitful.jl

   5 10 636 6.8 Julia

   Physical quantities with arbitrary units

   

   I've seen a few before, and a quick search yielded a bunch for me, right off the bat. By no means exhaustive:

   Julia: https://github.com/PainterQubits/Unitful.jl

   Python: https://pint.readthedocs.io/en/0.6/

   C++: https://github.com/nholthaus/units

   etc.

   And yes, it has always struck me as strange that date/time/calendar libraries are standard as canonical libraries shipped with language distributions, but units are not.

7. pqm

   6 3 15 1.3 JavaScript

   Physical Quantities and Measures (PQM) is a Node and browser package for dealing with numbers with units

   

   There are heaps of libraries for all languages because it is a fairly fun and straight forward project. I personally created this one because I was frustrated with how slow and clunky the existing javascript libraries were:

   https://github.com/GhostWrench/pqm

   Also, I open sourced just the unit database (in JSON format) for anyone interested in making their own version:

   https://github.com/GhostWrench/unitdb

8. uom

   7 27 1,078 6.7 Rust

   Units of measurement -- type-safe zero-cost dimensional analysis

   

   There's also uom for Rust https://github.com/iliekturtles/uom which also provides types for type level operations

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10. unix-v6

    8 5 407 0.0 C

    UNIX 6th Edition Kernel Source Code

    

    You are probably right.

    The one in FreeBSD is from NetBSD: https://svnweb.freebsd.org/base/head/usr.bin/units/units.c?v...

    The NetBSD version is from Adrian Mariano: http://cvsweb.netbsd.org/bsdweb.cgi/src/usr.bin/units/units....

    The one in Plan9 is in yacc: http://9p.io/sources/plan9/sys/src/cmd/units.y

    This GitHub repo claims to be V6: https://github.com/memnoth/unix-v6/blob/master/source/s2/uni...

11. Ruby Units

    9 2 536 6.2 Ruby

    A unit handling library for ruby

    

    > I don’t think I can link Ada libraries into my Ruby or Elixir codebase

    Ruby has (among others, I’m certain): https://github.com/olbrich/ruby-units

12. UnitSystems.jl

    10 6 18 0.0 Julia

    Physical unit systems (Metric, English, Natural, Planck, etc...)

    

    Recently I created a library for unit conversion in Julia, which is the most complete tool for unit conversion I am currently aware of

    https://github.com/chakravala/UnitSystems.jl

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