[Jprogramming] J Scripts

[Björn Helgason]

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 <b49P23TIvg at stny.rr.com>

> 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, programming-request at jsoftware.com wrote:
> > Date: Thu, 13 Oct 2011 13:52:10 +0100
> > From: David Vaughan <purpleblues13 at googlemail.com>
> > Subject: [Jprogramming] Remove part of rank-2 array
> > To: Programming forum <programming at jsoftware.com>
> > Message-ID: <9C5BD390-CAF5-40F2-943C-E0F3AE50BA21 at googlemail.com>
> > 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: gosinn at gmail.com
gsm: +3546985532
twitter: @flugfiskur
http://groups.google.com/group/J-Programming


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