For the uninitiated, "notation as a tool of thought" is a paper by Ken Iverson (https://m-cacm.acm.org/magazines/1980/8/10988-notation-as-a-tool-of-thought/pdf

For the uninitiated, "notation as a tool of thought" is a paper by Ken Iverson (https://m-cacm.acm.org/magazines/1980/8/10988-notation-as-a-tool-of-thought/pdf https://m-cacm.acm.org/magazines/1980/8/10988-notation-as-a-...), creator of APL programming language