| Implementation Status |
initial writing: 1990-08-09 last updated: 2004-10-26 |
Comparison tolerance <: 2^_34Not Yet Available
_ incomplete __ incomplete _. incomplete c.Changes in Release 4.05, 2000 09 05
< monad faster and less space
|. monad faster and less space
; faster and less space
-/ .* monad faster and less space
<@}.;.n faster and less space
<@}:;.n faster and less space
#: i.@(*/) monad faster and less space
3!:1 implemented dyad
3!:2 extended
3!:3 implemented dyad
5!:7 implemented
6!:8 implemented
6!:9 implemented
6!:10 implemented
6!:11 implemented
6!:12 implemented
6!:13 implemented
9!:30 implemented
9!:31 implemented
9!:32 implemented
9!:33 implemented
13!:0 extended
f/@, monad faster and less space
,./ monad faster and less space
u/.!.t implemented
/: faster
\: faster
[ faster and less space
] faster and less space
a=: c}x,y,:z faster and less space
u"r faster and less space
A. dyad faster and less space
i. faster dyad
i: faster dyad
memory mapped boxed arrays
implemented
Changes in Release 4.04, 2000 01 02
$. implemented
/: faster
\: faster
{ dyad faster and less space
(<"1@[ { ]) dyad faster and less space
} dyad faster and less space
C.!.2 implemented
Changes in Release 4.03, 1999 04 21
($,) dyad faster and less space ($,)"r dyad faster and less space n} dyad faster and less space 9!:26 implemented 9!:27 implemented 9!:28 implemented 9!:29 implementedChanges in Release 4.02, 1998 11 07
-/ .* monad faster and less space
#/. faster dyad
9!:22 implemented
9!:23 implemented
{. implemented infinite left arguments for dyad
i: implemented monad
Changes in Release 4.01, 1998 03 22
u;.3 faster and less space on matrices u;._3 faster and less space on matrices 6!:3 changed to accept fractions (Windows only) 13!:18 implemented 18!:0 implemented 18!:1 implemented 18!:2 implemented 18!:3 implemented 18!:4 implemented 18!:5 implemented 18!:55 implemented d. implemented E. implemented i: implemented p. extended # i.@# faster and less space on boolean listsChanges in Release 3.05, 1997 09 27
;:^:_1 changed
^ !.s extended
p.!.s extended
0!:11 changed to display errors in scripts
9!:24 implemented
9!:25 implemented
17!:n implemented
{. changed overtake on empties
": extended to permit complex left arguments
q: implemented (-x) q: y
1r2 changed
Changes in Release 3.04, 1997 05 19
'`a b c'=.gerund implemented
gerund;.n implemented
gerund/. implemented
gerund\ implemented
gerund\. implemented
9!:20 implemented
9!:21 implemented
13!:17 implemented
valence error implemented
for. do. end. implemented
select. case.
fcase. do. end. implemented
Changes in Release 3.03, 1996 12 13
'a b cd'=.y implemented 'a b cd'=:y implemented + etc. ranks of monads changed from _ to 0 %: faster monad ^ faster dyad ^. faster b&#^:_1 implemented b&#^:_1!.f implemented |: faster -/ .* faster monad : default result of i.0 0 5!:6 implemented 7!:3 implemented 7!:4 implemented 9!:18 implemented 9!:19 implemented 13!:16 implemented 16!:x implemented f"r faster monad <.@o. implemented on extended arguments >.@o. implemented on extended arguments p: faster error text extended to display current nameChanges in Release 3.02, 1996 06 24
+ +/ +/\ +/\. faster on integers
* */ */\ */\. faster on integers
- -/ -/\ -/\. faster on integers
gerund^:_1 implemented
! implemented for complex arguments
0!:3 implemented
4!:5 implemented
{:: implemented
@ implemented special cases
A. monad gives extended result
i. faster dyad
I. implemented
o. domain restricted
q: faster
S: implemented
x: implemented
1234x implemented
Changes in Release 3.01, 1996 01 16
scalar fns faster ^: changed; faster and less space $"r faster dyad |: faster , !.f implemented ,.!.f implemented ,:!.f implemented ; faster monad ;. faster and less space # dyad: faster and less space #: faster monad 9!:7 extended to accept matrices 9!:16 implemented 9!:17 implemented 13!:x extended to tacit defns 13!:3 extended to 'f* m:d', '*f m:d', and '~f m:d' 13!:9 implemented 13!:10 implemented 13!:11 implemented 13!:12 implemented 13!:14 implemented 13!:15 implemented f/ faster monad on scalar f ,.&.>/ faster monad /: extended to all arrays f/\ faster monad on scalar f f/\. faster monad \: extended to all arrays a=.x y}a faster and less space ". implemented dyad ": changed right rank; extended to boxed arrays; faster ?. implemented i. faster dyad L. implemented L: implemented m. implemented n. implemented u. implemented v. implemented Window driver changedChanges in Release 2.06, 1995 05 30
<"r faster monad +. faster monad -: faster dyad -:"r faster dyad a&#.^:_1 changed */^:_1 implemented p:^:_1 implemented q:^:_1 implemented ~: faster monad ~:"r faster monad 4 : n implemented 13!:8 implemented /: faster /:"r faster \: faster \:"r faster ]: implemented f D. 1 extended gerund D. n implemented e. faster dyad e."r faster dyad H. implemented i. faster dyad i."r faster dyad p. implemented p: implemented q: implemented f t. extended gerund t. implemented t: implemented memory allocation faster Window driver and session manager ported to MacintoshChanges in Release 2.05, 1995 02 26
f~"r faster |. faster dyad |."r faster dyad |.!.f faster dyad |.!.f"r faster dyad |: faster |:"r faster !^:_1 implemented n&!^:_1 implemented !&n^:_1 implemented #"r faster dyad 9!:10 implemented 9!:11 implemented 9!:12 implemented 9!:14 implemented ~:/ faster monad [\ faster dyad f/\ faster monad on booleans f/\"r faster monad f/\. faster monad f/\."r faster monad m&g"r faster f&n"r faster a: implementedChanges in Release 2.04, 1994 11 28
> faster monad
+ faster dyad
+/\ faster monad
+/\. faster monad
* faster dyad
*/\ faster monad
*/\. faster monad
- faster
-/\ faster monad
-/\. faster monad
-:"r faster dyad
-:!.f"r faster dyad
| faster monad
|."r faster monad
, faster
,"r faster
,. faster dyad
,."r faster monad
,:"r faster
f;.0 faster monad
f;.3 faster
f;._3 faster
0!:k accepts string right argument
3!:1 supports boxed arrays
3!:2 supports boxed arrays
3!:3 supports boxed arrays
3!:4 implemented
3!:5 implemented
15!:k implemented
f/"r faster monad
["r faster
]"r faster
{ faster on boxed left argument
{"r faster dyad
{."r faster
{.!.f"r faster
{:"r faster
}."r faster
}:"r faster
p.!.s implemented
scripts preserves blanks on input line
general execution faster
Changes in Release 2.03, 1994 09 21
|: faster
i{y faster
u&.> faster
Changes in Release 2.01, 1994 09 01
<!.k removed monad
>!.k removed monad
u^:n faster for scalar n
$. removed
u~ faster
|. changed left rank to 1
: changed numeric encoding
control words implemented
u;.3 implemented
u;._3 implemented
0!:xyz implemented
0!:2 implemented
1!:0 implemented
1!:5 implemented
1!:6 implemented
1!:7 implemented
1!:20 implemented
1!:21 implemented
1!:22 implemented
1!:30 implemented
1!:31 implemented
1!:32 implemented
1!:55 changed to also work on directories
2!:0 moved from 0!:0
2!:1 moved from 0!:1
2!:55 moved from 0!:55
3!:2 changed to be inverse of 3!:1 and 3!:3
3!:3 implemented
4!:3 implemented
4!:4 implemented
4!:56 removed
5!:3 removed
5!:4 changed to use linear rep. for nouns
14!:k implemented
+/b faster on boolean vectors
-/b faster on boolean vectors
;/ faster monad
b{y faster
m} changed
". removed dyad
": faster; blanked out control chars in boxed display
m@.n implemented
i. faster dyad
given names removed
trains enhanced
windows interface enhanced
workspaces removed
z locale implemented
+. bug fix ^: changed [: added t. added T. added : changed 13!:n added locatives added command line changed error display changedChanges in Version 6.2, 1992 12 20
u@n removed D. implementedChanges in Version 6.1, 1992 11 26
% coerced -0 to 0 u^:g implemented !: changed C fn headers for derived fns 0!:2 fixed bugs in profile, Windows, rank n output 0!:3 ditto 0!:4 ditto 0!:5 ditto 2!:2 changed to use maximum precision 2!:3 ditto 4!:55 fixed bug in local names 4!:56 ditto g} implemented i. added support for non-standard MAC floating point formats source jt.h added fl (flag) field to struct V source r.c changed 5!:2 to exploit fl in V source rl.c changed 5!:5 to exploit fl in V source rt.c changed 5!:5 to exploit fl in VChanges in Version 6.0, 1992 10 24
= faster monad -. faster dyad ~. faster ~: faster monad : 20 implemented : 21 implemented : 22 implemented u ::v implemented u;.n faster monad 0!:4 implemented 0!:5 implemented 4!:56 implemented 11!:0 implemented 11!:1 implemented u/. faster dyad /: faster \: faster u b. implemented e. faster i. faster input implemented 3r4, 3ad90, 3ar1.5708, 3p4, 3x4, 3b121.12Changes in Version 5.1a, 1992 08 11
": fixed bug in ": on real arraysChanges in Version 5.1, 1992 07 28
-. faster dyad on strings m :12 returns adverb if y. not in m 5!:5 implemented 9!:2 implemented 9!:3 implemented [: implemented ]: implemented u@n implemented m f. implemented x. y. replaced immediately by referent 2: to 9: implemented trains implemented c1 v c2 J added SYS_DOUBLE J added SYS_GETTODChanges in Version 5.0, 1992 06 22
<!.k implemented
<. faster
> faster
>!._ implemented
>. faster
+ faster dyad
* faster dyad
- faster
-: faster
%. faster
^ special case in dyad for integer y
$ faster dyad
~: faster dyad
f/ .g faster dyad
+/ .* faster dyad
, faster dyad
,. faster dyad
# faster dyad
#. faster
#: faster; fixed bug (#:!.t)
f/ faster
f/\ faster monad
f/\. faster monad
{. faster dyad
{.!.f implemented
}. faster
" faster; prefix agreement
? faster monad
5!:4 faster
x 6!:2 y implemented
Changes in Version 4.2, 1992 03 19
input fixed bug in jgets() input numeric input (in w.c) more robust vz.c enhanced portability in zacosh() J PC386 available test scripts availableChanges in Version 4.1, 1992 02 02
u . v faster m&, invertible ,&m invertible m&}. invertible 1!:2 (Mac) file type set to TEXT 1!:3 (Mac) file type set to TEXT 1!:12 (Mac) file type set to TEXT ^!.p implemented J source made availableChanges in Version 4.0, 1991 11 23
_: implemented
+.y implemented
*.y implemented
x-.y faster
u^:_ implemented
u^:_1 linear approximation
u^:n dyad changed
u^:v changed
$: changed
|: faster on matrices
u .. v implemented
u .: v implemented
m : 11 string m only
m : 12 implemented
atom1,:atom2 produces 2 1$atom1,atom2
u/. dyad faster
0{atom returns atom
u} changed; old defn is u@i.@}.@$} : (u@i.@$})
u"_ implemented
`:1 replaced by u^:v
`:4 replaced by m~
`:5 replaced by @.
j. implemented
r. implemented
4!:0 returns _1 on invalid arguments
5!:4 implemented
9!:10 removed
9!:11 removed
)script replaced by 0!:2
)sscript replaced by 0!:3
)off replaced by 0!:55 and Ctrl D
Archimedes ported to
DECstation ported to
MAC removed online dictionary
Changes in Version 3.4, 1991 07 15 (APL91 Version)
NB. implemented National Use Chars implemented (Appendix A of dictionary)Changes in Version 3.3, 1991 06 25
,. ravel items / append items 0-frames corrected a-trains implemented c-trains implementedChanges in Version 3.2, 1991 06 02
A. previously spelt @: C. previously spelt @. !. previously spelt &: ,. ravel items / append lists ; raze / link @. agenda @: at &: appose f. fix [. lev ]. dex m. removed n. removed s. removed proverbs dynamic reference 0!:1 documentation updatedChanges in Version 3.1, 1991 05 17
LinkJ m : 1 replaces 1 : m m : 2 replaces 2 : m m : 11 translate to tacit 1!:11 indexed file read 1!:12 indexed file write m. redefined n. redefined s. redefined u . v determinantChanges in Version 3.0, 1991 03 17
[ previously spelt }:
] previously spelt {:
. previously spelt ..
` previously spelt .
`: previously spelt :
: previously spelt ::
+/\ invertible
-/\ invertible
*/\ invertible
%/\ invertible
=/\ invertible
~:/\ invertible
+/\. invertible
-/\. invertible
*/\. invertible
%/\. invertible
=/\. invertible
~:/\. invertible
^~ invertible
,~ invertible
;~ invertible
,:~ invertible
|.&:k shift
b. boolean
m. mean
n. normalize
s. standard deviation
xyz: given names
tab treated like space on input
Mac resizeable Language Summary
Changes in Version 2.9, 1991 02 15
+: monad added *: monad added -: monad added ": dyad added 0: added 1: added m&g f&n faster :: labels adverbs n c, v c, c n, c v derive adverbs 2!:0 WS name class 2!:1 WS name list 2!:2 WS save 2!:4 WS copy 2!:55 WS erase 8!:9 (PC AT) Edit 8!:16 8!:17 (Mac) query/set font attributes 8!:19 (Mac) print screen Macintosh improved user interface PC AT improved user interface 386ix ported to SGI ported toChanges in Version 2.8, 1990 11 15
": faster on boxed arrays display faster on boxed arrays 5!:0 string representation inverse 5!:3 string representation 8!:2 8!:3 removed (replaced by DOS facility) 8!:4 8!:5 set screen attributes 8!:7 refresh screen )clear removed (equivalent to 4!:55 (4!:1) 2 3 4 5 ) PC AT simplified session manager PC AT added command line parameter /sChanges in Version 2.7, 1990 10 22
J code size reduced slightly
alternatives for national use characters
= faster monad
-. faster dyad
~. faster
~: faster monad
,. faster
;: rhematic rules re . and : changed
e. faster
i. faster dyad
. cum (gerund from verb)
: con (verb from gerund)
:: faster
u"v rank (like u, but has ranks of v)
u&.v under
=. indirect local assignment
=: indirect global assignment
3!:2 convert from internal representation
5!:0 fix
5!:1 atomic representation
8!:0 8!:1 query/set CGA mode
9!:0 9!:1 query/set random link
9!:4 9!:5 query/set prompt
9!:6 9!:7 query/set box drawing chars
9!:8 9!:9 query/set error msgs
9!:10 9!:11 query/set ) system command names
)box removed
)prompt removed
)reset renamed )sic
)rl removed
)script profile facility added
ATARI ST ported to
tutorial faster
Version 2.0, 1990 08 09 (APL90 Version)