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⍙

APL Functional Symbol Delta Underbar Symbol

⍙ is an APL technical symbol labeled “delta underbar” with Unicode U+2359.

U+2359

⍙ (Unicode U+2359) is an APL functional symbol: “delta underbar.” It’s used in APL contexts where specific operator/function glyphs matter. This page helps you identify, copy, and include the character correctly.

Apl Functional Symbol Delta Underbar Symbol Meaning

⍙ is named “APL FUNCTIONAL SYMBOL DELTA UNDERBAR” (Unicode code point U+2359). As an APL functional symbol, it belongs to a set of specialized glyphs used in APL programming to represent particular functions or operations. The visual elements—delta-like form with an underbar—help distinguish it from related APL symbols, which often vary by small marks. When entering or searching for this character, rely on the Unicode value (U+2359) or its HTML/CSS/JavaScript escapes to avoid near-lookalikes and formatting issues.

Common uses

  • •Copying the exact character into APL source text or documentation that references U+2359.
  • •Labeling diagrams or notes for APL operations where the delta-underbar glyph must match precisely.
  • •Using the symbol in technical writing to indicate a specific APL function by its exact Unicode form.
  • •Encoding the character in web pages using its HTML entity (⍙) or Unicode escapes for consistency.
  • •Preparing UI text for tools, editors, or fonts that support APL symbols, ensuring correct rendering.

Examples

⍙ APL Functional Symbol Delta Underbar

  • ⍙Use U+2359 (⍙) when referencing the “delta underbar” APL symbol.
  • ⍙In the glossary: ⍙ — delta underbar (APL functional symbol).
  • ⍙The function glyph shown is ⍙, not a similar-looking underbar character.
  • ⍙HTML: ⍙ displays ⍙ in supported fonts.
  • ⍙JavaScript escape: \\u{2359} for the APL delta underbar symbol ⍙.

Variations

Ready to copy

Technical codes

UnicodeU+2359
HTML Entity⍙
HTML Code⍙
CSS\2359
Alt CodeAlt + 9049
Decimal9049

How to type APL Functional Symbol Delta Underbar Symbol (⍙)

On Windows

Hold Alt and type 9049 on the numeric keypad. In Word, type 2359 then press Alt + X.

On Mac

Switch to the Unicode Hex Input keyboard, then hold Option and type 2359. Or press Control + Command + Space and search.

On Linux

Press Control + Shift + U, type 2359, 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 Delta Underbar symbol mean?

⍙ is named “APL FUNCTIONAL SYMBOL DELTA UNDERBAR” (Unicode code point U+2359). As an APL functional symbol, it belongs to a set of specialized glyphs used in APL programming to represent particular functions or operations. The visual elements—delta-like form with an underbar—help distinguish it from related APL symbols, which often vary by small marks. When entering or searching for this character, rely on the Unicode value (U+2359) or its HTML/CSS/JavaScript escapes to avoid near-lookalikes and formatting issues.

What Unicode character is ⍙?

⍙ is the APL functional symbol “delta underbar” with Unicode code point U+2359.

How do I copy ⍙ into HTML?

You can use the HTML entity ⍙ to represent ⍙.

How do I enter ⍙ in CSS or scripts?

Use the CSS escape \\2359 or the JavaScript escape \\u{2359} to represent ⍙.

Why does the character not look right in my document?

APL symbols require fonts with that glyph. If the font lacks support, you may see a blank box or fallback character even though the Unicode value is correct.