0:00 Intro 1:50 Background on Emacs lisp 15:07 Emacs Fundamentals 23:37 How to Evaluate code 25:45 Intro Overview 27:07 How to Print 30:25 Strings 35:01 String Functions 37:13 Substrings 40:53 Format String 42:11 Arithmetic 43:15 Convert Int/Float/String 44:32 Lisp Types 49:00 Boolean 54:00 Test Equality 56:02 Variables 58:36 Block of Expressions 1:02:37 Lexical Scope vs Dynamic Scope 1:13:08 Loops 1:15:43 Lists 1:21:41 Define Functions 1:23:15 Overview 1:27:37 Questions notes at http://xahlee.info/talk_show/xah_talk_show_2022-09-07.html