Pompidou

Good Thanks.

"loi Évin", from 1991, do not allow people to smoke in transportation. I used to travel air France and air Inter plane from 1990 to 2000. I never see anybody smoking in a plane.

Great. But you have to simplify the sources.

Maybe the internal broadcasting mecanism in numpy don't allow this nativelly ?

the top comment trick [ n, 1, n + 1, 0 ][n % 4] can be implemented in J as following :

   f =: ]`1:`>:`0:@.(4&|)"0

Then:

   (,. ; #: ; [: #: f) i.16

 0    0 0 0 0    0 0 0 0    
 1    0 0 0 1    0 0 0 1    
 2    0 0 1 0    0 0 1 1    
 3    0 0 1 1    0 0 0 0    
 4    0 1 0 0    0 1 0 0    
 5    0 1 0 1    0 0 0 1    
 6    0 1 1 0    0 1 1 1    
 7    0 1 1 1    0 0 0 0    
 8    1 0 0 0    1 0 0 0    
 9    1 0 0 1    0 0 0 1    

....

Array programming requires true array languages like apl and j.

It's free and allow use of standard ASCII characters

J is free. k is closed Source,and cost a life.

J has revolutionized the way I think. I can confirm it: ever since I learned to program with it, I’ve been able to solve so many problems that previously felt far beyond my (limited) intellectual reach. For me, J (and by extension, the APL family more broadly) has contributed as much to my thinking as the methodologies I learned during my university studies in philosophy. Suffice it to say, it has profoundly and positively shaken me.

Maybe not everyone involved is quite the genius you might've been expecting.

J

Maybe codfns for apl will solve this ? That's what I understood.. but maybe I'm wrong.

-: and :- are not the same... Maybe some typos... But your list shows how left and right terms are the same in each identities. Look like some pedagogical stuff.

For instance :

(],[) -: ([,])~

(],[) Appends right and left term while ([,])~ append left and right term after arguments order inversion.

Wow it's very interresting. I published it on reddit.com/r/arraylanguages thanks a lot!