!   quote dot symbol, binomial and factorial
!   binomial, 3!5 is 10
!   factorial, !5 is 120
"   cap null symbol, comment
"   comment
#   left arrow symbol, specification, assignment
#   specification, a#1 2 3
#   assignment, a#1 2 3
$   right arrow symbol, branch
$   branch, $0
%   divide symbol, divide and reciprocal
%   divide, 2%3.2 is 0.625
%   reciprocal, %4 is 0.25
&   and, 0 0 1 1 & 0 1 0 1 is 0 0 0 1
'   quote, 'abc'
(   left parenthesis, (12%3)X2 is 8, 12%3X2 is 2
)   right parenthesis
)   )clear, empties workspace
)   )copy wsid, copies all objects from named workspace
)   )copy wsid names, copies specified objects
)   )drop wsid, delete named workspace
)   )erase names, erases objects in workspace
)   )fns [alphabetic] list defined functions
)   )group name names, gathers objects into a group
)   )grp name, list members of named group
)   )grps [alphabetic], list groups
)   )lib [alphabetic[, list workspace names
)   )load wsid, load named workspace into memory
)   )off, end use of apl
)   )pcopy wsid, copies all objects without matching names
)   )pcopy wsid names, copies specified objects w/o matching names
)   )read fileid, reads file into character matrix named 'file'
)   )run fileid, executes APL expressions in named file
)   )save [wsid], save workspace to named file.
)   )si, list halted functions
)   )sinl, list halted functions and local names
)   )vars [alphabetic] list variables
)   )write fileid, writes character matrix named 'file' to file
)   )wsid [wsid], assign or list workspace name
*   star symbol, exponential and power
*   exponential, *1 2 is 2.7183 7.3891
*   power, 2*3 is 8
+   plus symbol, plus and conjugate
+   plus, 2+3 is 5
+   conjugate, +4 is 4
,   comma symbol, catenate, laminate, ravel
,   catenate, 2 3 , 4 5 is 2 3 4 5
,   laminate, 1 2,[.5]3 4 is 2 2RI4
,   ravel, (,2 2RI4) is 1 2 3 4
-   overbar, negative numbers, -5
.   dot symbol, inner product, outer product
.   inner product (2 2RI4)+.X2 2RI4 is 2 2R7 10 15 22
.   outer product 1 2J.XI3 is 2 3R1 2 3 2 4 6
/   slash symbol, compress and reduction
/   compress, 1 0 1/I3 is 1 3
/   reduction, +/I3 is 6
0   digit zero
1   digit one
2   digit two
3   digit three
4   digit four
5   digit five
6   digit six
7   digit seven
8   digit eight
9   digit nine
:   colon (labels)
;   semicolon symbol
;   indexing, (2 2RI4)[2;2] is 4
<   less, 3 5<5 3 is 1 0
=   equal 3 5=1 5 is 0 1
>   greater, 3 5>5 3 is 0 1
?   query symbol, deal, roll
?   deal, w?y is random deal of w elements from Iy
?   roll ?y is random selection from Iy
@   log symbol, general logarithm, natural logarithm
@   general logarithm, a@b is log b base a
@   natural logarithm, @2 is .6931471806
A   delta stile symbol, grade up
A   grade up, A3 5 3 2 is 4 1 3 2
B   base symbol, decode
B   decode, 10B1 7 7 6 is 1776
C   base null symbol, execute
C   execute, C'1+2' is 3
D   downstile symbol, floor, minimum
D   floor, D2.718 is 2
D   minimum, 2D3 is 2
E   epsilon symbol, membership
E   membership, 'abcdefgh'E'coffee' is 0 0 1 0 1 0 0
F   top null symbol, format
F   format, 5 3F1%3 is 0.333
G   del symbol (function editing)
H   delta symbol (function editing, ok in names)
I   iota symbol, index generator, index of
I   index generator, I5 is 1 2 3 4 5
I   index of, 'abc 'I'b c a' is 2 4 3 4 1
J   null symbol, inner product, outer product
J   inner product, (2 2RI4)+.X2 2RI4 is 2 2R7 10 15 22
J   outer product, 1 2J.XI3 is 2 3R1 2 3 2 4 6
K   not greater, 1 2 3 K 2 is 1 1 0
K   less than or equal, 1 2 3 K 2 is 1 1 0
L   quad symbol (input/output)
Lav atomic vector, 256-element character vector, all possible characters
Lcr a, canonical representation of defined function named in a
Lct comparison tolerance, default 1e-13
Lex a, expunge objects named by rows of a
Lfx a, fix defined function represented by a
Lio index origin, either 0 or 1
Llx latent expression, executed automatically when workspace loaded.
Lnc a, returns numerical classification of objects named by rows of a
Lnl n, returns character matrix of names with classifications in n
M   domino symbol, matrix divide, matrix inverse
M   matrix divide, M2 2R5 0 0 2 is 2 2R.2 0 0 .5
M   matrix inverse, M2 2R5 0 0 2 is 2 2R.2 0 0 .5
N   top symbol, encode
N   encode, 10N1776 is 1 7 7 6
O   circle symbol, circular, hyperbolic, pi times, pythagorean
O   circular
O   hyperbolic
O   pi times, O 1 2 is 3.14159 6.28319
O   pythagorean, 4Ox is (1+x*2)*.5
P   nand, 0 0 1 1 P 0 1 0 1 is 1 1 1 0
Q   quote-quad (character input)
R   rho symbol, reshape, shape
R   reshape, 2 2RI4 is 2-by-2 matrix of 1 2 3 4
R   shape, R2 2RI4 is 2 2
S   upstile symbol, ceiling, maximum
S   ceiling, S-3.14 3.14 is -3 4
S   maximum, 2S3 is 3
T   circle slope symbol, transpose
T   transpose, T2 2RI4 is 2 2R1 3 2 4
U   down arrow symbol, drop
U   drop, 1U'abc' is 'bc'
V   or, 0 0 1 1 V 0 1 0 1 is 0 1 1 1
W   del stile symbol, grade down
W   grade down, A3 5 3 2 is 2 1 3 4
X   times symbol, times, signum
X   times, 2X3 is 6
X   signum, X-3 0 4 is -1 0 1
Y   up arrow symbol, take
Y   take, 2Y'abc' is 'ab'
Z   not less 1 2 3 Z 2 is 0 1 1
Z   greater than or equal, 1 2 3 Z 2 is 0 1 1
[   bracket, left (axis, indexing)
\   slope symbol, expand, scan
\   expand 1 0 1 \ 'ab' is 'a b'
\   scan +\1 2 3 is 1 3 6
]   bracket, right (axis, indexing)
^=  not equal 1 2 3^=2 is 0 1 0
_   bar symbol, minus, negative
_   minus, 1_2 is -1
_   negative, _1 -2 3 is -1 2 -3
`/  slash bar symbol, compress, reduction
`/  compress, 1 0 1`/3 3R'abcdefghi' is 2 3R'abcghi'
`/  reduction, +`/3 4RI12 is 15 18 21 24
`1  dieresis symbol
`A  alpha symbol
`C  cap symbol
`G  del tilde symbol
`I  i-beam symbol
`O  circle stile symbol, reverse, rotate
`O  reverse, `O2 3RI6 is 2 3R3 2 1 6 5 4
`O  rotate, 1 2`O2 3RI6 is 2 3R2 3 1 6 4 5
`R  circle bar symbol, reverse
`R  reverse, `R2 3RI6 is 2 3R4 5 6 1 2 3
`U  cup symbol
`V  nor, 0 0 1 1 V 0 1 0 1 is 1 0 0 0
`W  omega symbol
`X  shoe, right, symbol
`Z  shoe, left, symbol
`\  slope bar symbol, expand, scan
`\  expand, 1 0 1`\2 2RI4 is 3 2R1 2 0 0 3 4
`\  scan, +`\2 3RI6 is 2 3 R 1 2 3 5 7 9
`a  alphabetic a underscored
`b  alphabetic b underscored
`c  alphabetic c underscored
`d  alphabetic d underscored
`e  alphabetic e underscored
`f  alphabetic f underscored
`g  alphabetic g underscored
`h  alphabetic h underscored
`i  alphabetic i underscored
`j  alphabetic j underscored
`k  alphabetic k underscored
`l  alphabetic l underscored
`m  alphabetic m underscored
`n  alphabetic n underscored
`o  alphabetic o underscored
`p  alphabetic p underscored
`q  alphabetic q underscored
`r  alphabetic r underscored
`s  alphabetic s underscored
`t  alphabetic t underscored
`u  alphabetic u underscored
`v  alphabetic v underscored
`w  alphabetic w underscored
`x  alphabetic x underscored
`y  alphabetic y underscored
`z  alphabetic z underscored
a   alphabetic a
b   alphabetic b
c   alphabetic c
d   alphabetic d
e   alphabetic e
f   alphabetic f
g   alphabetic g
h   alphabetic h
i   alphabetic i
j   alphabetic j
k   alphabetic k
l   alphabetic l
m   alphabetic m
n   alphabetic n
o   alphabetic o
p   alphabetic p
q   alphabetic q
r   alphabetic r
s   alphabetic s
t   alphabetic t
u   alphabetic u
v   alphabetic v
w   alphabetic w
x   alphabetic x
y   alphabetic y
z   alphabetic z
{   left brace symbol (not used)
|   stile symbol, magnitude, residue
|   magnitude, |-3 0 4 is 3 0 4
|   residue, 1|2.385 is 0.385
}   right brace symbol (not used)
~   tilde (not), ~0 1 is 1 0