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Acute Accent (`` ` ``)
`𝔽` 𝕩`: Fold
Scan over `𝕩` with `𝔽` from left to right, producing intermediate values.
```
+` 1‿2‿3
⟨ 1 3 6 ⟩
⟨1, 1+2, (1+2)+3⟩
⟨ 1 3 6 ⟩
-` 1‿2‿3
⟨ 1 ¯1 ¯4 ⟩
⟨1, 1-2, (1-2)-3⟩
⟨ 1 ¯1 ¯4 ⟩
```
`𝕨 𝔽` 𝕩`: Scan With initial
Monadic scan, but use `𝕨` as initial left argument.
```
5 +` 1‿2‿3
⟨ 6 8 11 ⟩
⟨5+1, (5+1)+2, ((5+1)+2)+3⟩
⟨ 6 8 11 ⟩
5 -` 1‿2‿3
⟨ 4 2 ¯1 ⟩
⟨5-1, (5-1)-2, ((5-1)-2)-3⟩
⟨ 4 2 ¯1 ⟩
```
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