ℒ
Unicode
U+2112LaTeX
\mathcal{L}HTML entity
HTML decimal
ℒMathML
<mi>ℒ</mi>Semantic identity and intent
Characters to distinguish
- ⃗ — Combining Vector Arrow
- ℂ — Complex Numbers
- ℍ — Quaternions
Use ℒ in the right format
Meaning and usage
Often denotes the Laplace transform or a Lagrangian.
Define the operator or function represented by script L.
Pronunciation: script l
Formula examples
\mathcal{L}\{f(t)\}How to type Script L
- Windows
- Open Character Map and search by name or Unicode U+2112.
- macOS
- Open Character Viewer with Control–Command–Space and search by the symbol name.
- Microsoft Word
- In an equation, type \mathcal{L} and press Space when Word supports the command.
- iPhone and iPad
- Copy and paste ℒ, or use a math/LaTeX app. The standard iOS keyboard may not expose every mathematical symbol.
- Android
- Copy and paste ℒ, or use a math keyboard or LaTeX editor. Keyboard layouts vary by device and app.
- Google Docs
- For plain text, paste ℒ or use Insert → Special characters. For structured math, use the equation editor and verify \mathcal{L}.
- Excel
- Paste ℒ into a cell or use Insert → Symbol when available. Ordinary cells preserve the character but do not interpret LaTeX commands.
Common mistakes
- Do not substitute a visually similar Latin or differently styled character for ℒ; case and mathematical alphabet style can identify different quantities.
- For plain text, copy ℒ as U+2112; for structured equations, use \mathcal{L} in math mode. A look-alike glyph or image can break search, accessibility, or parsing when the intended character is Script L.
When to use ℒ
- Use ℒ in plain text when a Unicode character is appropriate and the destination preserves U+2112.
- Use \mathcal{L} in an equation editor when mathematical spacing or structure matters.
- Define the local meaning when Script L is used in math alphanumeric, calculus with a field-specific convention.
Look-alikes and related characters
- ⃗ — Combining Vector Arrow
- ℂ — Complex Numbers
- ℍ — Quaternions
Font and compatibility notes
Glyph shape can vary by font. Verify the code point after copying, and prefer LaTeX or MathML for structured equations.
Continue the workflow
From Script L to a finished equation
- Copy the characterUse ℒ in plain text when Unicode is accepted.
- Choose a structured formatUse
\mathcal{L}for LaTeX or the MathML snippet for accessible web equations. - Edit or convertOpen the value in the editor or converter without retyping it.
Review and source notes
Quality tier: core
Last reviewed: 2026-07-26
Review method: Checked Script L against its Unicode identity, LaTeX representation, HTML serialization, MathML token, and copy-and-paste behavior.
Verified against: Unicode Standard, Unicode mathematical notation guidance, and established LaTeX/MathML syntax.
Reference sources
- The Unicode StandardUnicode Consortium — Character identity, encoding, names, and conformance.
- Unicode Character Code ChartsUnicode Consortium — Code points and official character charts.
- Unicode Technical Report #25: Unicode Support for MathematicsUnicode Consortium — Mathematical character usage, variants, and notation support.
- LaTeX Project DocumentationThe LaTeX Project — LaTeX syntax, authoring model, and official documentation links.
- MathML CoreW3C — Semantic web mathematics elements and browser behavior.
Frequently asked questions
What does the Script L symbol mean?
Often denotes the Laplace transform or a Lagrangian.
What is the LaTeX command for ℒ?
Use \mathcal{L} in a compatible math environment.
Can I copy ℒ as Unicode?
Yes. Use the copy button above to copy the Unicode character directly.