For me one of the killer apps for J was the beauty of the code, in particular I have been enamored of being able to write code that looks like natural sentences and writing sentences that look declarative in the sense that they don't have loops, but may have sub sentences. That is why I tried to write a J in 5 that emphasizes forks, Insert, and Suffix.
Beauty of code may have been Ken Iverson's motivation, too, but I am not sure if there are many/any others who would be drawn to a programming language for that reason. The other great draw of J for me has always been its being a very satisfying tool for quick complex calculations -- the super calculator. Recently on the forum Nick suggested the following link about touchQuery. For me that is a killer app for J, if it could be done right on mobile/tablet devices. http://www.youtube.com/user/touchquery?feature=watch Another killer app might be a new app for animators to use touch gestures to draw/redraw the movements of their drawn objects. This may not be special to J, but as an interpreted language, I see J as having a leg up here, too. At present the turtle graphics I am trying to develop for JHS only allows an animator to use forward-type and turn-type text inputs to alter the movements of objects, but ultimately I dream of someone adding a touch gesture input mode, also. Notice, I said 'dream'. On Fri, Mar 7, 2014 at 10:57 PM, Yike Lu <yikelu.h...@gmail.com> wrote: > A few comments: > I think that having music is better than no music. But I also feel that the > music chosen is uhh... too upbeat. Usually music for coding videos is more > ambient. > > Generally, I think that promotional materials need to answer the question > "what's the killer app?" Hell, I don't even know what the killer app is > yet. I stumbled into J from kdb, for which the killer app is massive time > series queries with functional array processing. > > For Python, it's scripting and automation, plus the massive number of > libraries available on Pypi for which you can find virtually everything. > For Ruby, it's probably Rails. For C/C++, it's bit twiddling and Unix/Linux > hacking. For R, it's the statistics packages. For Lisp, it's the macros. > > Finally, where can I find the Python integration code? Searching the site > is a massive fail because "Python" is at the bottom of every wiki page. > > > -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
