calculang
ossdatabase
calculang | ossdatabase | |
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5 | 9 | |
40 | 30 | |
- | - | |
2.9 | 6.0 | |
5 days ago | 3 months ago | |
JavaScript | Ruby | |
GNU Affero General Public License v3.0 | GNU Affero General Public License v3.0 |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
calculang
- Show HN: Open-source, browser-local data exploration using DuckDB-WASM and PRQL
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Dynamic programming in Haskell: automatic memoization
I develop calculang, a language for calculations. It converts concise formulae into Javascript.
Since calculation formulae are usually inherently pure, a `--memo` flag to the compiler memoizes the lot.
Many of my models are written in this recursive style and only work because of memoization. Sometimes other tricks are needed e.g. careful ordering of the calls, so that the memo is available before the stack breaks.
My first calculang example is a bouncing ball: the position at t depends speed and the position at t-1. With loops we'll usually discover the same thing, but it's so much harder to follow.
First-class memoization to proliferate this style is a really neat thing.
[0] https://github.com/calculang/calculang
[1] bouncing ball code: https://github.com/declann/calculang-miscellaneous-models/bl...
[2] bouncing ball initial post: https://observablehq.com/@declann/calculang-bouncing-ball?co...
[3] if you can tolerate my slow-load WIP devtools and are on a Desktop, this is better, with buttons to navigate through the model development (only some of which are working now!): https://models-on-a-plane.pages.dev/stories/bounce/
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AI intensifies fight against ‘paper mills’ that churn out fake research
My instinct about numbers (i.e. incl. statistics) is that they should be reproducible: on-demand, with results and workings easily subjected to interrogation.
In reality in many fields - my experience is in finance, but also in science - calculations are scattered across different languages and systems. This adds friction to any process about reproducing, understanding, analysing numbers.
This is some motivation for calculang, a language for calculations I develop. https://github.com/calculang/calculang
For the HN crew it's an under-development(!) functional language with properties to permit flexible designs that can scale. It's for numbers and if you share the model alongside your numbers people can check them according to the model and see the workings.
It goes well with visual number [dev/person]tools that I will release one of soon, and in the future watch for a browser extension for the workings behind numbers you are reading.
Important, it won't address the raw data part of the problem, but where numbers following from that are concerned, it might get closer to that instinct.
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Ask HN: Those making $0/month or less on side projects – Show and tell
I'm developing calculang, a language for calculations: https://github.com/calculang/calculang
I've made some examples here: https://observablehq.com/collection/@declann/calculang
Some tooling work for visualizations and for showing the workings will be released in the next weeks.
There are no positive money flows; I've spent many years experimenting, developing, and now 1 year after a public release the twitter page where I make announcements has 24 followers: https://twitter.com/calculang
I'm a modelling consultant - I work with numbers, I think they should be simple, but they are disjointed across systems and entities and programming languages and spreadsheets. The friction accumulates everywhere: to get a simple result, to follow the workings, to do any analysis, to share one or the other.
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How to store your app's entire state in the url
I'm developing more tools to these ends, via my overarching project calculang, a language for calculations [1].
I also have a loan/repayment validator [2] but haven't added this QR code feature yet.
Bank letters e.g. "Interest rates are rising and now we want 100e more per month, every month" could use a QR code to an independent validator or to see the workings behind the 100 calculation.
Not using this in the real world now and there are security considerations to keep in mind, but reading state from a URL facilitates the usecase, QR codes that link physical numbers to their calculation and model.
Implementation of payroll calculator is an Observable notebook and thankfully it neatly supports all my strict requirements as a QR code demo.
[0] https://observablehq.com/@declann/payroll-playground-ireland...
+Feature tweet: https://twitter.com/calculang/status/1608183731533107206
[1] https://github.com/calculang/calculang
[2] https://observablehq.com/@declann/loan-validator-dev
ossdatabase
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Ask HN: Those making $0/month or less on side projects – Show and tell
looks like they typo'd, it's https://ossdatabase.com
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Ask HN: Who wants to be hired? (October 2022)
- https://ossdatabase.com : Open source alternatives for popular software, this project itself is Open Source. (https://github.com/prithvi16/ossdatabase) and extensively uses Hotwire.
I have built and launched multiple products from ideation and design to building and marketing them. I have also worked in large and small teams. I like to take ownership of my work end to end and figure things out on my own.
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20+ search engine tools - Google search engine alternatives and other methods for finding things on your computer.
https://ossdatabase.com - is a crowdsourced Open Source software database. Our goal is to make finding open source alternatives and comparing them to proprietary solutions as simple as possible.
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Open Source Alternative To
I have also built something similar at
https://ossdatabase.com
Recently released code under AGPL-3.
But I want to go beyond aggregation and add following things
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How to promote an Open Source project?
I will add your project to https://ossdatabase.com
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Why do you waste so much time on the internet
Sure. Some links I just bookmarked and will use:
https://highbrow.se/ (Alternative search engine)
https://cora-pic.com/en (Meme generator)
https://www.mightyapp.com/ (New upcoming cloud browser)
https://ossdatabase.com/ (Database of OSS)
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A crowdsourced database of Open Source alternatives - OSS Database
Hi! I am the creator of this tool. I saw people collecting Open Source alternatives on Github. Which is awesome btw, but I thought there was a better way to do this. I wanted to build a nice and clean UI and nice filters to filter projects by tech, platform, use case, and license. Following things are planned - User reviews for projects, will be screened for spam.- User-based submissions, and edits for projects. More transparency in moderation.- Karma for users based on edits. - Once I gain enough traction I plan to release the source code under MIT and the collected data in CSV files for everyone to download. - A job board for companies using Open Source tools for monetization. Alternative.to is a good tool, but it doesn't hurt to have alternatives ;). Thanks, u/zicxor for cross-posting here! source code: https://github.com/prithvi16/ossdatabase
What are some alternatives?
summonscript - Manifest manifold models with magical machinations.
Fetcher - A chrome extension which fetches your favourite feeds, so you don't have to.
CozeJS - Coze Javascript - cryptographic JSON messaging specification
awesome-selfhosted - A list of Free Software network services and web applications which can be hosted on your own servers
graphic-walker - An open source alternative to Tableau. Embeddable visual analytic
macOCR - Get any text on your screen into your clipboard.
URLFormJS - URLFormJS - Create sticky forms, stateful applications, and shareable links.
windmill - Open-source developer platform to turn scripts into workflows and UIs. Fastest workflow engine (5x vs Airflow). Open-source alternative to Airplane and Retool.
sveltekit-search-params - The easiest way to read and WRITE from query parameters in sveltekit.
ArchiSteamFarm - C# application with primary purpose of farming Steam cards from multiple accounts simultaneously.
u - μ is a JavaScript library for encoding/decoding state (JavaScript object) in URL
doesitarm - 🦾 A list of reported app support for Apple Silicon as well as Apple M2 and M1 Ultra Macs