A stack-based array programming language

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🧩 Shape-Safe Symbolic Differentiation with Algebraic Data Types

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• Kotlin

A functional, flexible and concise Lisp.

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• Java

Scientific computing with Perl

• UpdatedJun 1, 2025
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An introduction to the J programming language that gets to the point.

• UpdatedMay 13, 2025
• J

N-dimensional / multi-dimensional arrays (tensors) in Scala 3. Think NumPy ndarray / PyTorch Tensor but type-safe over shapes, array/axis labels & numeric data types

• UpdatedDec 22, 2022
• Scala

💐 j is a subset of J, and an essay.

• UpdatedNov 23, 2023
• Rust

Online REPL for BQN

• UpdatedAug 13, 2023
• TypeScript

k interpreter

• UpdatedJun 16, 2025
• C

A basic Lisp interpreter implemented in Elixir.

• UpdatedJan 23, 2022
• Elixir

emacs major mode for working with ngnk

• UpdatedMar 10, 2024
• Emacs Lisp

APL machine learning library

• UpdatedMay 11, 2025
• APL

Emacs mode for uiua, a stack-based array language

• UpdatedSep 30, 2024
• Emacs Lisp

Interpreter in Fortran that can handle scalars and 1D arrays, with access to intrinsics and statistical functions and plotting with gnuplot

• UpdatedMay 26, 2025
• Fortran

C++20 library that mostly implements the vector and matrix transparent basic types from GLSL Spec 4.6

• UpdatedJun 20, 2025
• C++

Ari: Array Relational Interactive Programming

• UpdatedJun 23, 2025
• Go

Source-to-source autodiff for APL

• UpdatedMay 11, 2025
• Python

An n-dimensional array library for the Odin programming language

• UpdatedJun 10, 2023
• Odin

• UpdatedMar 25, 2022
• HTML

Solutions of various problems in array programming languages: APL, J

• UpdatedMay 15, 2025