Symbol Epsilon
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∊ — is an Element of — Keystroke is usually Alt-e; Character(⎕UCS) 8714
Usage
Examples
5 ∊ 1 2 3 4 5 ⍝ determine if 5 is an element of the set of numbers from 1 through 5, result just below 1 = Yes or true, so 5 IS an element of 1 through 5.
1
1 2 3 4 5 ∊ 5 ⍝ determine if the set of numbers from 1 through 5 contains the integer 5. Results 0=False, 1=True
0 0 0 0 1
(⍳5) ∊ 5 ⍝ determine if the set of numbers from 1 through 5 (iota 5) contains the integer 5.
0 0 0 0 1
'this is text' ∊ 't' ⍝ determine if a text phrase contains the letter 't', 1=True, 0=False
1 0 0 0 0 0 0 0 1 0 0 1
See Also
| NARS 2000 Lang Tool Bar |
← | → | + | - | × | ÷ | * | ⍟ | ⌹ | ○ | ! | ? | √ | | | ⌈ | ⌊ | ⊥ | ⊤ | ⊣ | ⊢ | |||
| ≡ | ≢ | < | ≤ | = | ≥ | > | ≠ | ∨ | ∧ | ⍱ | ⍲ | ↑ | ↓ | ⊂ | ⊃ | ⌷ | ⍋ | ⍒ | |||||
| ⍳ | ∊ | ⍸ | ⍷ | ∪ | ∩ | ⊆ | ⊇ | ~ | § | π | .. | , | ⍪ | ⍴ | ⌽ | ⊖ | ⍉ | ||||||
| / | \ | ⌿ | ⍀ | ⊙ | ¨ | ⍨ | ⍤ | ⍣ | ⍡ | ⍥ | ⍦ | . | ∘ | ⍠ | ‼ | ⌻ | ∂ | ∫ | ⍞ | ⎕ | ⍎ | ⍕ | |
| ⋄ | ⍝ | ∇ | ∆ | ⍙ | _ | ⍺ | ⍵ | ¯ | ⍬ | ∞ | ∅ | ||||||||||||
| Second Row | i j k | i j k l | g | p | r | v | x | ||||||||||||||||
