I'm a physicist by day, and work for a company that makes measurement equipment. A lot of my work is quantitative, so I'm frequently "thinking" with numbers, equations, graphs, etc. While I'm not employed as a programmer per se, I use scientific programming quite heavily.

Jupyter has helped me take notes when I need to "think" quantitatively, and be able to look at answers quickly, plus maintain a record that I can read later on.