/rpn-demo

A simple Haskell introduction demonstrating a few features while implementing a RPN calculator

Primary LanguageHaskellThe UnlicenseUnlicense

RPN.hs - A simple Haskell Introduction

This is a simple introduction to Haskell, demonstrating a few features while implementing a RPN parser and evaluator.

Why Haskell?

  • Purely functional

    • Very different programming paradigm -> new insights
    • Claim: data & functions are much easier to understand than state
    • Good concurrency story (immutability, STM, ...)

  • Types, types, types

    • If it compiles it works
    • "Make illegal states unrepresentable through types"

  • Theoratically well grounded

    • Gateway drug to even worse languages such as Coq, Idris, Agda ...
    • Some ideas from mathematics directly applicable

  • All the usual claims

    • Terse, expressive, better programmer productivity, yada yada yada

Also: Why Functional Programming Matters