" <-APL2-------------------- sam269.txt ---------------------------->
" <- Selective specification --------------------------------------->
costs#(39 19 29) (35 15 29 18 45)
costs#costs,`Z25 16 21 12.5
1 2`Xcosts " s/b 19
(1 2 `X costs) # 20
costs
(a b c)#1 2 3
a,b,c
L#r#2 2 4 R I 16
((,r)[1 3 14 16])#'acde'
r
m#'abcde'
((1 0 1 0 1) \ m) # I5 " produces 1 3 5
m
)off