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*View this file with results and syntax highlighting [here](https://mlochbaum.github.io/BQN/help/⍋gradeup binsup.html).*
# Delta Stile (`⍋`)
`⍋ 𝕩`: Grade Up
Indices of `𝕩` that would sort its major cells in ascending order.
a ← 3‿2‿1
⟨ 3 2 1 ⟩
⍋ a
⟨ 2 1 0 ⟩
(⍋a) ⊏ a
⟨ 1 2 3 ⟩
`𝕨 ⍋ 𝕩`: Bins Up
Binary search for each element of `𝕩` in `𝕨`, and return the index found, if any.
`𝕨` must be sorted in ascending order.
3‿4‿5‿7 ⍋ 2
┌·
· 0
┘
3‿4‿5‿7 ⍋ 2‿6
⟨ 0 3 ⟩
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