A lot of people have cited the APL Life example, but I found this J example of somebody exploring Ulam's spiral as a great way that J is used to approach a math

A lot of people have cited the APL Life example, but I found this J example of somebody exploring Ulam's spiral as a great way that J is used to approach a mathematical concept [1]. Very easy to follow along in J open next to YouTube, and it still amazes me how quickly you can visualize from the REPL with 'viewmat'. The Jupyter notebooks, are modern kin to this, and are still trying to catch Mathematica, which for me, really shines for toying around with the curated data and one-liners. [1] VIDEO - https://www.youtube.com/watch?v=dBC5vnwf6Zw https://www.youtube.com/watch?v=dBC5vnwf6Zw