apl>" <-APL2-------------------- sam198.txt ----------------------------> apl>" <------------------- Selective Specification ---------------------> apl>v#1 2 3 4 apl>(2Yv)#100 200 apl>v 100 200 3 4 apl>a#(10 20 30) 'ab' apl>(Ea)#I5 apl>a 1 2 3 4 5 apl>Ra 2 apl>(Ea)#'abcd' apl>a abcd abcd abcd abcd abcd apl>Ra 2 apl>(Ea)#1 apl>a 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 apl>Ra 2 apl>(Ea)#I20 apl>a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 apl>Ra 2 apl>(Ea)#'x' apl>a x x x x x x x x x x x x x x x x x x x x apl>Ra 2 apl>)off