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What's 'J' ?

• brudgers 11y ago
  J is an ASCII compatible mathematical system of notation that can be readily and directly expressed as a computer programming language. http://Jsoftware.com http://Jsoftware.com. It is Ken Iverson's remix of APL based on roughly 3 decades of field use. Originally a commercial product, it has professionally written high quality documentation with particularly good materials related to a realistic onboarding timeline for something that aims to be broadly useful for mathematics. At a higher level Iverson believed that the traditional mathematical notation is problematic because it is not designed for expression at the keyboard and as code. APL used special keyboards, but requiring custom hardware impedes general adoption. And there's a full version that runs on a typical Android phone.