" <-APL2-------------------- sam261.txt ---------------------------->
" <- Inner Product (+.X) pp 164-166 -------------------------------->
(2 2R10XI4) +.X 2 3RI6
m &.= L # m # 4 4 R 1 1 1 1 0 1 1 1 0 0 1 1 0 0 0 1
L # k # 3 8 R 'saturday7/04/99 july 4  '
k +.E '0123456789' " s/b 0 5 1
(2 3 R I 6) D.S 3 4 RI12
L#p#2 2R(.1XL#j#3 2RI6)
j,.+p
j+.,p
L#s#3 5R'sandybettygrace'
s&.='sandy'
'sandy'&.=Ts
Ru#(0 2R0)+.X2 0R0
L#q#(2 0R0)+.X0 4R5
Rq
)off