# \#prefix

**URL:** https://racket.discourse.group/tag/prefix/262.md

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## [Postfix for Scheme+](https://racket.discourse.group/t/postfix-for-scheme/4134)

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**Author:** [@damien\_mattei](https://racket.discourse.group/u/damien_mattei)\
**Replies:** 1\
**Last updated:** [March 14, 2026, 3:51pm UTC](https://racket.discourse.group/t/postfix-for-scheme/4134 "2026-03-14T15:51:01Z")

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Hi, i added some postfix notation support for Scheme+. There is not a lot of languages and systems supporting postfix syntax: RPN (Reverse Polish Notation) Hewlett Packard calculators (HP-65, HP-15C,HP-41C,HP-34C,....) …