Lisp

Hello World in Scheme

Every programming journey starts with Hello World. Let’s write our first Scheme program and experience one of the most elegant and influential programming languages ever created.

The Code

Create …

Hello World in Common Lisp

Every programming journey starts with Hello World. Let’s write our first Common Lisp program and experience one of the most powerful and enduring programming languages ever created.

The Code …

The Language Inside the Language: A Tour of Metaprogramming

Every programming language eventually runs into the same wall: the programmer knows something at write time that the language cannot express directly. How to serialize a thousand different types …

The Oldest Programming Languages Still in Production Use

Somewhere right now, a FORTRAN program written in the 1970s is predicting tomorrow’s weather. A COBOL system is processing your credit card transaction. A Lisp-based AI is helping plan a …