apl>" Sam040.txt. apl>3X4 12 apl>2+(3X4) 14 apl>(-6)%3 -2 apl>v#2 3 5 7 11 13 17 19 apl>a#'abcdefgh' apl>v[3 1 5] 5 2 11 apl>a[8 5 1 4] head apl>Rv 8 apl>)off