LISP Programming Tutorial: An Intro to Functions

In this video, we get our feet wet with LISP functions. I show you how to define a function, call it, return values from it, and use recursion.

Examples include functions being passed integers and functions doing some basic, and not so basic, list processing.

Knocking some rust off for the AI class I'm teaching for the first time, so if you notice any mistakes in the video, please leave some comments below.

Thank you!

The tools I'm using in this video:

// Learn More //
Check out my LISP playlist:

Simple Input and Output:

LISP arrays:

An introduction to LISP lists:

[lucasresendegoes]

I'm using SBCL, I get a warning when I run the code says: "undefined variable: COMMON-LISP-USER::A". Also it outputs "NIL" from the function

[dariocastellanos]

Hi, great vid, you explain better than my teacher, I got a question with the bigger function if you don't mind me asking, let's say i have to use 3 parameters, how would u do it?

[sadamth]

Kindly make separate video about recursive function. It's so confusing. I hope, u will make a video

[moonlix]

9:41 so... if i want a list ... i change the "print" ?¿ .. i need to know that please ^^´

[dexah]

this is very DE-FUN™
(haha get it? de fun? its not fun?) no but great tutorial, this is fun