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Raze In e.  _ _ _ Member (In)

e.y produces a boolean result that determines for each atom of y whether its open contains an item of the raze of y .
 
  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 (#y)>y i. x .

The fit conjunction provides tolerant comparison, as in e.!.t .
 

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

   f=: ] e.~&>/ ;
   f y
1 1 1 0 1 1
0 0 1 1 1 0
1 0 0 0 0 1

   'cat' e. 'abcd'
1 1 0

   ]z=: 2 3$'catdog'
cat
dog

   'cat' e. z
1



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