APL Functional Symbol Iota Underbar Symbol
⍸ is an APL functional symbol (iota underbar) used in APL code and technical notation.
U+2378
The symbol ⍸ is Unicode character U+2378, named “APL FUNCTIONAL SYMBOL IOTA UNDERBAR.” It’s primarily associated with APL-style programming and notation. You can copy it directly or use its Unicode escapes in many programming environments.
Apl Functional Symbol Iota Underbar Symbol Meaning
⍸ (U+2378) is an APL functional symbol known as “iota underbar.” In APL contexts, “iota” typically relates to generating or indexing sequences, while the underbar modifier indicates a related variant of that behavior. Because this symbol is part of APL’s functional set, it’s most often encountered in APL source code, technical write-ups, and discussions that preserve exact APL glyphs. Outside of APL, ⍸ may appear in documents that reference APL operators explicitly, such as documentation, code snippets, and educational materials where the precise character matters.
Common uses
- •Copying the exact APL glyph into APL code snippets or documentation
- •Typing the symbol in editors that support Unicode to maintain character-accurate examples
- •Using Unicode escape sequences in source code or templates that must remain plain-text
- •Labeling or annotating APL-related concepts in technical blog posts and tutorials
- •Including the character in design systems or UI mockups for developer-facing content
Examples
⍸ APL Iota Underbar Symbol (U+2378)
- ⍸APL glyph: ⍸ in code blocks
- ⍸Lookup behavior using ⍸ in APL notes
- ⍸Unicode reference: U+2378 ⍸
- ⍸Operator symbol ⍸ shown in documentation
- ⍸Escaped character: \\u{2378} for ⍸
Variations
Ready to copy
Technical codes
| Unicode | U+2378 | |
| HTML Entity | ⍸ | |
| HTML Code | ⍸ | |
| CSS | \2378 | |
| Alt Code | Alt + 9080 | |
| Decimal | 9080 |
How to type APL Functional Symbol Iota Underbar Symbol (⍸)
On Windows
Hold Alt and type 9080 on the numeric keypad. In Word, type 2378 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2378. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2378, then press Enter or Space.
Anywhere
Copy ⍸ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Apl Functional Symbol Iota Underbar symbol mean?
⍸ (U+2378) is an APL functional symbol known as “iota underbar.” In APL contexts, “iota” typically relates to generating or indexing sequences, while the underbar modifier indicates a related variant of that behavior. Because this symbol is part of APL’s functional set, it’s most often encountered in APL source code, technical write-ups, and discussions that preserve exact APL glyphs. Outside of APL, ⍸ may appear in documents that reference APL operators explicitly, such as documentation, code snippets, and educational materials where the precise character matters.
What is the Unicode code point for ⍸?
⍸ is Unicode code point U+2378.
What is the official Unicode name of ⍸?
Its Unicode name is “APL FUNCTIONAL SYMBOL IOTA UNDERBAR.”
How can I copy ⍸ into my code or document?
You can copy the character directly, or use the provided escapes such as ⍸ or \\u{2378} depending on your environment.
Where will I most commonly see this symbol?
You’ll most commonly see ⍸ in APL code snippets, APL documentation, and technical writing that preserves APL glyphs exactly.