For one, the numpy versions use method calls with human readable names. I prefer ergonomics and having my colleagues grok what a line does: eg. 'reshape' calls

For one, the numpy versions use method calls with human readable names. I prefer ergonomics and having my colleagues grok what a line does: eg. 'reshape' calls will change the shape of your array. Bless you if you're in an environment where you can always pick the tools that work for you. But I'm never going to convince my (java, scala, python, R) adept colleagues that they need J in their life. Here lie my gripes with the linked article, it's just not such a good sales pitch.