*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/help/deduplicate_find.html).*

# Epsilon Underbar (`⍷`)

## `⍷ 𝕩`: Deduplicate

Unique major cells of `𝕩`.

           ⍷ 4‿5‿6‿6‿4‿7‿5

           a ← 3‿3 ⥊ ↕6

           ⍷ a



## `𝕨 ⍷ 𝕩`: Find

Mark the top left location of the occurrences of `𝕨` in `𝕩` with a 1, and other locations with 0.

Result is the same shape as `(≢𝕨)↕x`.

           "string" ⍷ "substring"

           "loooooong" ⍷ "short"

           b ← 7 (4|⋆˜)⌜○↕ 9

           c ← (0‿3‿0≍0‿1‿0)

           c ⍷ b