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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
+
+           ⍋ a
+
+           (⍋a) ⊏ a
+
+           
+    
+    
+## `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
+
+           3‿4‿5‿7 ⍋ 2‿6
+
+