" <-APL2-------------------- sam253.txt ---------------------------->
" <- Selective specification (Er)#n -------------------------------->
v#1 2 3 4
(2Yv)#100 200
v
a#(10 20 30) 'ab'
(Ea)#I5
a
Ra
(Ea)#'abcd'
a
Ra
(Ea)#1
a
Ra
(Ea)#I20
a
Ra
(Ea)#'x'
a
Ra
b#'p' 'pi' ('pie' 'pier')
(2`Xb)#'my'
b
(2 1 `X b) # 'tr'
b
(3 2 1 `X b) # 't'
b
(a)#3
a`=3
(a b c)#2 3 4
a
b
c
v # 10 20 30 40
(2Yv)#100 200
v
a#'abcd'
(a)#10 20 30
a
a#'abcd'
(Ya)#10 20 30
a
a#'abcd'
(2`Xa)#10 20 30
a
a#(12 13)(22 23 24 25)(310 320)
(3Y2`Xa)#'abc'
a
L#a#b#(2 3)(2 3 4 5)(10 20)
(3Y2`Xa)#'abc'
a
(Eb)#0
b
L#x#3 4R'abcdefghijkl'
" ---------------
m#x
m[2;3]#'L'
m
" ---------------
m#x
(2 1Ym)#'OM'
m
" ---------------
m#x
(4Y,Tm)#'J*%L'
m
" ---------------
m#x
m[1;2 4]#'GJ'
m
" ---------------
m#x
(,m)#I12
m
" ---------------
m#x
m[1 3;1 4]#'*'
m
L#m#3 2RI6
(1 0 / m)#'abc'
m
L#m#3 2RI6
L#t#2 2R'abcd'
(1 0 1/[1]m)#t
m
L#u#'abcde'
(2Uu)#I3
u
L#v#3 4R'abcdefghijkl'
(1 -1 U v)#2 3RI6
v
L#v#3 4R'abcdefghijkl'
(1U[1]v)#2 4RI8
v
m#'abc'
(1 0 1 0 1 \ m)#I5
m
L#n#2 3RI6
L#t#2 4R'abcdefgh'
(1 0 1 1\n)#t
n
L#r#2 3 4RI24
((,r)[1 3 14 16])#'acde'
r
L#m#3 2RI6
(1 1 0 0 1\[1]m)#5 2R_I10
m
L#k#'red' 'white' 'blue'
(Yk)#'yellow'
k
)off