J is a general purpose, high-level programming language. J is particularly strong in the mathematical, statistical, and logical analysis of data and visualization of your data is at your fingertips.
If you are new to J and want to be a J programmer, this is a good place to start. If you already know J, you probably think of it as fun rather than work. Now you can have mobile joy of J!
Ratings and Reviews
Full power J in your iPhone
Do not be deceived by the small form factor. This is a complete implementation of J compiled from the same source used for Windows, Linux and Mac versions. I have successfully loaded and run 1000+ line scripts with this system. If you are interested in experimenting with a functional array oriented programming language in the APL family of languages this is the app for you!
Amazing interactive programming language
J is an excellent full featured programming language for which you supply inputs and you get immediate results, ''interactively." J is also available on most other computing platforms, with the same, or more, features. Look for screencasts by searching for jsoftware and thebrianschott at the usual place.
This is awesome
I rarely care enough to write a review, but this is excellent. Having J in my pocket was what I needed to finally learn J, having tried a few times over a couple of decades. Not just that, the UI is very good.
Edit: if this isn't updated, it will cease to work come iOS 11 :(
With Family Sharing set up, up to six family members can use this app.