Look what I've found! Lorinda Cherry herself explaining how to write a "talking calculator" (in 1982!) using dc and Unix pipelines: https://youtu.be/XvDZLjaCJ

Look what I've found! Lorinda Cherry herself explaining how to write a "talking calculator" (in 1982!) using dc and Unix pipelines: https://youtu.be/XvDZLjaCJuw?t=827 https://youtu.be/XvDZLjaCJuw?t=827