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*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/help/deduplicate_find.html).*
# Epsilon Underbar (`⍷`)
## `⍷ 𝕩`: Deduplicate
[→full documentation](../doc/selfcmp.md#deduplicate)
Unique major cells of `𝕩`.
⍷ 4‿5‿6‿6‿4‿7‿5
a ← 3‿3 ⥊ ↕6
⍷ a
## `𝕨 ⍷ 𝕩`: Find
[→full documentation](../doc/find.md)
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
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