The interpretation of bident and trident are arbitrary, it is up to the language designer or implementer.
Note the syntax class of each train is provided. A0 v1 is an adverb. In the context of (x A0), x can be NAC, interpretation of this bident can in turn found in this page. On Oct 12, 2017 3:51 PM, "Erling Hellenäs" <[email protected]> wrote: > Hi all ! > > I have a hard time finding the new rules among these old rules. > > While in the Jx description x and y denotes verbs, in Ken Iversons > description they denote nouns? > > Take the bident a0 v1. According to Ken Iverson it should be parsed as (x > a0) v1, while in Jx, using the same notation, it is parsed as (v1 a0) y ? > > Does Jx represent a new way of thinking about how these trains should be > parsed, which Ken Iverson did not have? > > Cheers, > > Erling Hellenäs > > > Den 2017-10-12 kl. 04:09, skrev bill lam: > >> As mentioned earlier, ancient J had a more complete set of >> rules for tridents and bidents. This is what availbale in >> J circa 1994 (23 years ago) >> >> https://i.imgur.com/OtBZZq1.jpg >> >> In the good old days, adverbs and conjunctions can be >> written without explicit definitions, albeit only very >> few can manage to do that. >> >> Ср, 11 окт 2017, Erling Hellenäs написал(а): >> >>> Hi all! >>> >>> I finally managed to understand Cloak. I then with interest studied these >>> new syntax rules: >>> >>> av ↔ v(a) >>> x(a a) ↔ (x a) a >>> ac ↔ (c)a >>> x(c a) y ↔ x c y a >>> x(a c a) y ↔ (x a) c (y a) >>> >>> It all seemed logical and nice. I just wonder about the thoughts behind. >>> What is the logic behind these rules? >>> >>> I also wonder if there are any negative effects of having these rules. >>> >>> Cheers, >>> >>> Erling Hellenäs >>> >>> >>> >>> On 2017-09-30 23:27, Jose Mario Quintana wrote: >>> >>>> Jx 1.1 Release >>>> >>>> A Jx v1.1 Extensions Guide, a J/Jx Cheatsheet, a Jx Assertions script >>>> together with links to a Windows 64 bit dll, a Unix 64 bit so binaries >>>> (without avx support) and the patch corresponding to the J806 source >>>> (beta-6) can be found at the link [0]. >>>> >>>> Summary >>>> >>>> - Primitives >>>> Added =.. =:: $:: [. ]. ]: ".. `. &:.(*) ?:(*) i.. O. >>>> Extended ~ $. >>>> Modified " (*) >>>> >>>> - Foreign >>>> Added 104!:5 Unnamed Execution 102!:0/1 In-place >>>> Amend/Append (*) >>>> >>>> - Trains >>>> a v Added >>>> a a Extended >>>> c a Resurrected and extended (*) >>>> a c a Resurrected and extended (*) >>>> >>>> - Spelling >>>> Names with Unicode characters >>>> >>>> (*) New Jx 1.1 feature >>>> >>>> This release introduces a modified primitive (") and, in theory, for the >>>> first time an incompatibility vs the official J counterpart (J806 >>>> beta-6) ; >>>> however, in practice, it is highly unlikely to break any existent code >>>> and >>>> doubters have an opportunity to test their code. >>>> >>>> This is a simple 1-decade-old example [1], >>>> >>>> ]`|."1 i.5 6 >>>> 0 1 2 3 4 5 >>>> 11 10 9 8 7 6 >>>> 12 13 14 15 16 17 >>>> 23 22 21 20 19 18 >>>> 24 25 26 27 28 29 >>>> >>>> See also the threads [2, 3] for recent discussions. >>>> >>>> The rank of the verb ?: has been changed to 0 0 0 to make it easier to >>>> use. >>>> >>>> Three venerable facilities are released: >>>> >>>> - The conjunction (&:.), for the motivation, see the post [4] (see also >>>> the >>>> post [5] both, its reference and the embedded discussion for similar >>>> more >>>> recent ideas). >>>> >>>> - 102!:0/1 In-place Amend/Append, be very careful (see [6]); if you do >>>> not >>>> know what to expect, play with their corresponding models instead. >>>> >>>> PS. There are a couple of other goodies which will be documented later. >>>> >>>> >>>> References >>>> >>>> [0] Jx 1.1 Release >>>> http://www.2bestsystems.com/foundation/j/jx1.1 >>>> >>>> [1] [Jprogramming] zig-zag order Oleg Kobchenko >>>> http://www.jsoftware.com/pipermail/programming/2006-November >>>> /004188.htm >>>> >>>> [2] [Jprogramming] How m"n shoulda been defined Henry Rich >>>> http://www.jsoftware.com/pipermail/programming/2015-August/ >>>> 042512.html >>>> >>>> [3] [Jprogramming] Jx version 1.0 release Henry Rich >>>> http://www.jsoftware.com/pipermail/programming/2017-August/ >>>> 048124.html >>>> >>>> [4] [Jforum] Wasted intermediate values Jose Mario Quintana >>>> http://www.jsoftware.com/pipermail/general/2003-March/014488.html >>>> >>>> [5] [Jprogramming] Fold/reduce with initial value? R.E. Boss >>>> http://www.jsoftware.com/pipermail/programming/2015-February >>>> /041015.html >>>> >>>> [6] [Jprogramming] Tacit J and indexed replacement Jose Mario Quintana >>>> http://www.jsoftware.com/pipermail/programming/2014-July/ >>>> 038515.html >>>> ---------------------------------------------------------------------- >>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>> >>> >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >>> >> > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
