What does HackerNews think of ivy?

ivy, an APL-like calculator

Language: Go

Uiua: A minimal stack-based, array-based language | Sep 2023

My recent exposure to array programming languages came via a podcast called The Array Cast[1]

Not affiliated, just recommending. The regular co-hosts appear to each be experienced with various array languages such as J, APL, etc. They don't get deeply technical, but it's a nice introduction, especially on explaining the appeal.

A recent episode had Rob Pike (UTF-8, Go, etc.) on to talk about his array based calculator, Ivy[2]

[1] https://www.arraycast.com/

[2] https://github.com/robpike/ivy

APL: An Array Oriented Programming Language (2018) | Mar 2023

https://github.com/robpike/ivy

Documentation: https://pkg.go.dev/robpike.io/ivy#pkg-overview

Also see these Advent of Code 2021 solutions with Ivy: https://www.youtube.com/playlist?list=PLrwpzH1_9ufMLOB6BAdzO...

APL deserves its renaissance too (2018) | Nov 2022

I like Ivy's[0] approach by using keywords instead of symbols. I feel like something like APL should either be embedded in some host language, be given lots of functionality for I/O, or some static type system with rank polymorphism.

[0]: https://github.com/robpike/ivy

APL deserves its Renaissance too | Nov 2022

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Speaking for myself, I find that whenever I think "I just can't see how..." it makes me want to figure out what it is that others can see that I can't. This is the reason I learnt APL, actually, after seeing half a page of k code and feeling annoyed that I couldn't read it. k subsequently led me to APL.

You can try it for yourself -- NumPy is a fair "Iverson ghost" -- APL without the symbols: it has a similar enough array model, and most of the APL primitives as functions or methods. APL lets you express linear algebra in a very natural way. Doing it in NumPy is much more convoluted.

Or try Rob Pike's (of Go fame) "ivy" -- his attempt at an APL-with-words (https://github.com/robpike/ivy).

APL deserves its Renaissance too | Nov 2022

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I enjoyed russ cox's advent of code series using rob pike's ivy (https://github.com/robpike/ivy), an apl-like calculator

https://www.youtube.com/playlist?list=PLrwpzH1_9ufMLOB6BAdzO...

BQN: Finally, an APL for your flying saucer | Oct 2022

Ivy is another APL like language and one I kind of enjoy, because source code is actually readable and writable.

https://github.com/robpike/ivy

Robpike/Lisp: Toy Lisp 1.5 interpreter in Go | Jun 2020

He also implemented an APL-like interpreter in Go: https://github.com/robpike/ivy

Ode to J | Apr 2020

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I'd also suggest looking at Pike's ivy as a simple example of an apl like system in go. https://github.com/robpike/ivy

Arthur Whitney's 'B' Language | Mar 2019

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You have ivy, for example: https://github.com/robpike/ivy by Rob Pike and, of course, gofmted. I have had a quick look at a few APL implementations and some of them are very readable code (by normal standards).

However, although I totally get your point (I've been there), I have to say there is much more to learn if you try to understand that parallel world. It can take a while, but I think it is worth it.

APL\iv: an APL interpreter and stream processor written in Go | Jan 2019

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Rob Pike also implemented an APL-like big number calculator in Go more recently: https://github.com/robpike/ivy

>The author has never used APL. It's a chicken and egg problem. (...) All testing has been done with tryapl.org.

There are also a few free software implementations of APL most notably GNU APL. I have been sticking to that while learning APL. https://www.gnu.org/software/apl/

Ivy: a minimalist static site generator in Python | Jul 2017

Poor name choice:

https://ant.apache.org/ivy/

https://github.com/robpike/ivy

APL\B5500: The Language and Its Implementation – Gary A. Kildall (1970) [pdf] | Oct 2015

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The list of people who implemented (Quasi-)APLs contains some further illustrious names:

- Ken Thompson (APL\11): https://groups.google.com/forum/#!topic/comp.lang.apl/u9sl6g...

- Dan Bricklin (Multics APL): http://lowendmac.com/2006/dan-bricklin-inventor-of-the-elect...

- Bill Gates (designed, never published): http://americanhistory.si.edu/comphist/gates.htm#tc30

- Robert Griesemer: https://en.wikibooks.org/wiki/Go_From_Scratch/The_Origin_of_...

- Rob Pike: https://github.com/robpike/ivy