sifflet

Simple, visual, functional language for learning about recursion.

http://pages.iu.edu/~gdweber/software/sifflet/

Latest on Hackage:

2.3.0

This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.

BSD-3-Clause licensed by Gregory D. Weber

Maintained by "gdweber" ++ drop 3 "abc@" ++ "iue.edu"

Sifflet is a visual, functional programming language. It is intended as an aid for learning about recursion. Sifflet users can make programs by drawing diagrams to connect functions and other units. Sifflet shows the intermediate steps of the computation on the diagram, and can expand function calls to show further details.