I guess it would be helpful for you to go through the locale labs. There you get explanations about where to look for utilies and such as well as storing your own things in separate locations. You will also read about paths etc.
After the locales you can read about OOP and get some exciting info how to structure your applications and use and extend utilities. In the labs sections you will find all kinds of things explained in details. In the demos you will also find a lot of useful info. There are so much in these sections you will be picking up new things there for years. 2011/10/13 David Ward Lambert <[email protected]> > http://www.jsoftware.com/docs/help701/phrases/special_matrices.htm > > Starting at m24 are several definitions for lower triangular matrix in > the book of j phrases. Generate a matrix of the same size and multiply > atoms. A * LT > > Scripts: j will "certainly" have stored some on your system. Look for > them with your operating system and favorite program editor. Where are > these scripts? > > If you're using j version 6 > > USERFOLDERS_j_ > SYSTEMFOLDERS_j_ > > and under j7 these sentences will aid your script search: > > UserFolders_j_ > SystemFolders_j_ > > On either system this sentence should help you locate your j scripts. > > jpath '~user' > > Thu, 2011-10-13 at 20:58 +0800, [email protected] wrote: > > Date: Thu, 13 Oct 2011 13:52:10 +0100 > > From: David Vaughan <[email protected]> > > Subject: [Jprogramming] Remove part of rank-2 array > > To: Programming forum <[email protected]> > > Message-ID: <[email protected]> > > Content-Type: text/plain; charset=us-ascii > > > > I have an array like: > > > > 2 3 4 > > 3 4 5 > > 4 5 6 > > > > but I want to delete the upper right corner like so: > > > > 2 0 0 > > 3 4 0 > > 4 5 6 > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Björn Helgason, Verkfræðingur Fornustekkum II 781 Hornafirði, t-póst: [email protected] gsm: +3546985532 twitter: @flugfiskur http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) ♖♘♗♕♔♙ `. )----' (")_(") ☃☠ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
