[Jprogramming] Aiming at a multi-core future

[Henry Rich]

Back at the beginning of J there was a table of tridents that defined

V0 V1 V2   as  (x V0 y) V1 (x V2 y)

This plainly shows the execution order as right-to-left.

Henry Rich 

> -----Original Message-----
> From: programming-bounces at jsoftware.com 
> [mailto:programming-bounces at jsoftware.com] On Behalf Of Dan Bron
> Sent: Monday, December 17, 2007 10:01 PM
> To: 'Programming forum'
> Subject: RE: [Jprogramming] Aiming at a multi-core future
> 
> > Good Lord, this isn't a 'bug' to be cast aside, it's a 
> > description of function, and one that I have counted on for 
> > years.  
> 
> Thanks to RE Boss' generous donations, I have quite a 
> collection of old J versions.  I just browsed through them, 
> and, as far as I
> can tell, this description was added in 4.06a and removed in 
> the next version.
> 
> Well, to be more precise, it is present in 4.06a, but neither 
> in 4.05d nor 4.06d.  If there were any intermediate versions (say,
> 4.06c), I don't have them, so I can't say they didn't make 
> the assertion.  (BTW, if anyone _does_ have these versions, please let
> me know.  It helps me answer questions just like this.)
> 
> This doesn't quite jibe with what I remember Roger saying 
> during the JUG; I thought I understood he'd inserted the equivalence
> after Ken's passing, and later recanted, realizing that Ken 
> had deliberately omitted it for just this reason.
> 
> Or maybe I'm looking in the wrong place.  The only Dic page I 
> checked was II.F .
> 
> In any case, I don't think I was ever under the impression 
> that the DoJ made this promise (but I started my career with v4.06d).
> In fact, I think I've defensively coded against it.  Or at 
> least given warning:
> 
> 	
> http://www.jsoftware.com/pipermail/programming/2007-February/0
> 05000.html
> 
> -Dan
> 
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