Similitude.jl
pqm
Similitude.jl | pqm | |
---|---|---|
3 | 3 | |
6 | 15 | |
- | - | |
2.7 | 1.3 | |
21 days ago | about 1 year ago | |
Julia | JavaScript | |
MIT License | MIT License |
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Similitude.jl
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UnitSystems.jl vs Unitful.jl
Do not forget that [Similitude.jl](https://github.com/chakravala/Similitude.jl) is part of the UnitSystems.jl related packages
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Similitude.jl is new more powerful Quantity than Unitful.jl
Not sure why you think more units is more powerful. Defining specific units is seldom the difficult part of dealing with units in code. I'd say that just looking at the tests for Unitful (excluding the separate tests for dates) to the tests of Similitude that there seems to be a lot more functionality in Unitful. What are the advantages of these alternate packages? And I do not think focusing on "more powerful" is too useful unless qualified appropriately.
pqm
- A better/faster JavaScript library for physical math
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Ask HN: Show your failed projects and share a lesson you learned
I made a spreadsheet add-on similar to the pint library for python (dimensional analysis) based on my own open source JS library (https://github.com/GhostWrench/pqm). Website is still up: https://ghostwrench.net/convertplus.html.
To me it seemed like the perfect way to get a solo app up and running because Google was going to run all the sever stuff and I could just cash in. The app never really got off the ground and by the time I realized that Big G really doesn’t want to make it easy for any schmuck to run a profit generating app using their servers and their technology and it wasn’t worth the maintenance effort to keep up with the constant requests to update the app. I think it is no longer available on the GSuite store as of a few months ago. I think my biggest mistakes were as follows:
1) I needed a business/marketing oriented co-founder. I underestimated how difficult that job is and overestimated my ability to do it.
2) I wanted to charge too much for the app. I didn’t want to undersell myself and get caught in a trap of not making enough to keep up with maintenance. I went too far the other way. I think maybe a $50-$60 on time charge would have been appropriate, instead of requiring a subscription. This is an easy fix, but I would had to re-do my marketing effort and see #1
3) Built before I tested the market. I convinced myself that just asking a few of my engineering friend would use it was enough. Again, this is probably a symptom of #1
4) I was mentally unprepared to deal with failure and I lost motivation to keep working on the project when things didn’t go as I expected.
5) I underestimated how much people actually use spreasheet add-ons. There really isn’t a thriving market and most of the really popular apps are a utility attached to another popular standalone project.
6) Probably should have targeted Excel rather than Sheets, because the market is simply bigger.
I think if the stars align, I would like to give this project another go. I don’t think it has totally failed rather than just gone dormant, but I need a better strategy for round 2!
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GNU 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
What are some alternatives?
Unitful.jl - Physical quantities with arbitrary units
unix-v6 - UNIX 6th Edition Kernel Source Code
mp-units - The quantities and units library for C++
Ruby Units - A unit handling library for ruby
FunctionTabulations.jl - A package to create and load tabulations of functions. Supports Unitful.
lasercrabs - Abandoned hybrid singleplayer/multiplayer shooter project formerly known as DECEIVER
UnitSystems.jl - Physical unit systems (Metric, English, Natural, etc...)
boltstream - Boltstream Live Video Streaming Website + Backend
gnu-units - GNU Units (mirror)
Flythrough.Space - Top down space captain RPG
rtti