e.  (Verb)

RAZE IN (_)  e.y produce a boolean result that determines for each atom of y whether its open contains each item of the raze of y. For example:

	  ] y=.'abc';'dc';'a'
+---+--+-+
|abc|dc|a|
+---+--+-+
	  ,.y				   
abcdca
   e.y							
1 1 1 0 1 1
0 0 1 1 1 0
1 0 0 0 0 1

IN (_ _)  If x has the shape of an item of y, then x e. y is 1 if x matches an item of y. In general, x e.y is (#y)>y i.x. Thus:

  	'cat' e. 'abcd'
1 1 0
	  'cat' e. 2 3$ 'catdog'
1