Symbol Iota

⍳ — iota or index; Keystroke ALT+i ; Character (⎕UCS) 9075

Usage

Monadic use:

• Index Generator: ⍳R

Dyadic use:

• Index Of: L⍳R

Examples

      ⍳20     ⍝ Monadic example, generate the set of integers 1 through 20
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

      'ABCDEFG' ⍳ 'BG'    ⍝ Dyadic example, find/lookup the letters B and G in the string 'ABCDEFG' (pos 1 = A, pos 2 = B, ... pos 7 = G)
2 7                                 ⍝ Results found at positions 2 and 7 of string 'ABCDEFG'

See Also

• Index Generator:  ⍳R
• Index Of:  L⍳R
• Array Lookup: L⍸R
• Indexing: R[L],   R[L]←A,   R[L]f←A,   L⌷R,   L⍉R,    L⊃R
• Indices: ⍸R

NARS 2000 Lang Tool Bar

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