# Find

Z←L⍷R

**Find** looks for patterns L in R.

It returns a simple boolean array with the same shape as R.

L and R are arbitrary arrays.
But to be useful,
the rank of L
should not be more than the rank of R,
and both arguments should have the same type
(either both character or both numeric).

If L is a scalar,
then Z←L⍷R ←→ R∊L.

If L is not a scalar,
then it represents a contiguous pattern,
which may or may not be found in one or more places in R.

If the arguments are numeric,
then the result is sensitive to ⎕CT.

Examples:

R←3 8⍴'thirteenfourteenfifteen '

R

thirteen

fourteen

fifteen

't'⍷R

1 0 0 0 1 0 0 0

0 0 0 0 1 0 0 0

0 0 0 1 0 0 0 0

'teen'⍷R

0 0 0 0 1 0 0 0

0 0 0 0 1 0 0 0

0 0 0 1 0 0 0 0