apl>" <-APL2-------------------- sam261.txt ---------------------------->


apl>" <- Inner Product (+.X) pp 164-166 -------------------------------->


apl>(2 2R10XI4) +.X 2 3RI6

 90 120 150
190 260 330

apl>m &.= L # m # 4 4 R 1 1 1 1 0 1 1 1 0 0 1 1 0 0 0 1

1 1 1 1
0 1 1 1
0 0 1 1
0 0 0 1

0 0 0 1
0 0 0 0
0 0 0 0
0 0 0 0

apl>L # k # 3 8 R 'saturday7/04/99 july 4  '

saturday
7/04/99 
july 4  


apl>k +.E '0123456789' " s/b 0 5 1

0 5 1

apl>(2 3 R I 6) D.S 3 4 RI12

1 2 3 4
4 4 4 4

apl>L#p#2 2R(.1XL#j#3 2RI6)

1 2
3 4
5 6

 .1 0.2
 .3 0.4


apl>j,.+p

  1.1 2.3   1.2 2.4  
  3.1 4.3   3.2 4.4  
  5.1 6.3   5.2 6.4  

apl>j+.,p

 3.4  3.6
 7.4  7.6
11.4 11.6

apl>L#s#3 5R'sandybettygrace'

sandy
betty
grace


apl>s&.='sandy'

1 0 0

apl>'sandy'&.=Ts

1 0 0

apl>Ru#(0 2R0)+.X2 0R0

0 0

apl>L#q#(2 0R0)+.X0 4R5

0 0 0 0
0 0 0 0


apl>Rq

2 4

apl>)off