Ivy is an interpreter for an APL-like language. It is a plaything and a work in progress.

Ivy has a custom domain. Do not install using github directly. Instead, run:

go install robpike.io/ivy@latest

Documentation at https://pkg.go.dev/robpike.io/ivy.

Try the demo: within ivy, type

)demo

Prototype apps for iOS and Android are available in the App store and Google Play store. (At the moment, the iOS one is unavailable but will return.) These are very old but should be updated before too long. To find them, search for "ivy bignum calculator".

Slides for a talk at: https://talks.godoc.org/github.com/robpike/ivy/talks/ivy.slide Video for the talk at: https://www.youtube.com/watch?v=PXoG0WX0r_E The talk predates a lot of the features, including floating point, text, and user-defined operators.

To be built, ivy requires Go 1.24.