Mathematical Bold Small Delta Symbol
π (Mathematical Bold Small Delta) is a bold, small delta character used in math and technical text.
U+1D6C5
π is a Unicode math symbol known as the Mathematical Bold Small Delta. Itβs useful when you need a bold, delta-shaped character in formulas, labels, or notation. You can copy it directly or use its Unicode code point in tools that support it.
Mathematical Bold Small Delta Symbol Meaning
π is the βMATHEMATICAL BOLD SMALL DELTA,β a bold, lowercase-style delta used in mathematical and technical writing. In general notation, delta symbols often relate to change (a difference between values), but the specific meaning depends on the context where the symbol is used. The key practical point is its styling: the character is bold and matches the small delta form within Unicodeβs mathematical symbols. Use it when regular delta (Ξ) doesnβt match your formatting requirements, or when you need a consistent bold-math look across a document.
Common uses
- β’Writing math equations where a bold small delta is required for consistent notation
- β’Labeling parameters or variables representing changes or differences in reports
- β’Designing math-focused graphics or UI text (e.g., dashboards, diagrams, documentation)
- β’Creating typeset content in Markdown/notes that support Unicode math characters
- β’Using the symbol in developer documentation for formulas or symbol references
Examples
π Mathematical Bold Small Delta
- π Let π x denote the bold small delta change in x.
- π Compute the result using π t as the time increment.
- π In the model, π p represents the difference in pressure.
- π The sensitivity is given by π f/π x.
- π Use π as the bold small delta symbol in the notation table.
Variations
Ready to copy
Technical codes
| Unicode | U+1D6C5 | |
| HTML Entity | 𝛅 | |
| HTML Code | 𝛅 | |
| CSS | \1D6C5 | |
| Decimal | 120517 |
How to type Mathematical Bold Small Delta Symbol (π )
On Windows
In Word, type 1D6C5 then press Alt + X. Or open the emoji picker with Windows key + period.
On Mac
Press Control + Command + Space to open Character Viewer and search for the character.
On Linux
Press Control + Shift + U, type 1d6c5, then press Enter or Space.
Anywhere
Copy π with the button above and paste it wherever you need it β this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Mathematical Bold Small Delta symbol mean?
π is the βMATHEMATICAL BOLD SMALL DELTA,β a bold, lowercase-style delta used in mathematical and technical writing. In general notation, delta symbols often relate to change (a difference between values), but the specific meaning depends on the context where the symbol is used. The key practical point is its styling: the character is bold and matches the small delta form within Unicodeβs mathematical symbols. Use it when regular delta (Ξ) doesnβt match your formatting requirements, or when you need a consistent bold-math look across a document.
What is the Unicode code point for π ?
π is U+1D6C5 (MATHEMATICAL BOLD SMALL DELTA).
How can I copy π ?
Copy the character directly from this page, or use the provided HTML entity (𝛅), CSS escape (\\1D6C5), or JavaScript escape (\\u{1D6C5}).
Is π the same as Ξ?
No. π is the Mathematical Bold Small Delta. Ξ is a different character (typically the Greek capital delta). Use π when you specifically need the bold small delta styling.
Where is π commonly used?
Itβs most often used in math and technical writing where bold, delta-shaped notation is required for variables, changes, or difference-style quantities.