Delta Symbol \u0394 Copy & Paste: Math, Science & How to Type
The delta symbol is everywhere in science and math. The uppercase \u0394 means "change" or "difference," while the lowercase \u03B4 appears in calculus, chemistry, and engineering. Every delta variant is below, ready to copy and paste.
All Delta Symbols
| Symbol | Name | Unicode | Copy |
|---|---|---|---|
| Δ | Capital Delta (Change) | U+0394 | Δ |
| δ | Small Delta | U+03B4 | δ |
| △ | White Up-Pointing Triangle | U+25B3 | △ |
| ∆ | Increment (Laplace Operator) | U+2206 | ∆ |
| Δ | Nabla/Delta (math operator) | U+2207 | ∇ |
What Does Delta Mean?
Capital \u0394 — Change or Difference
The capital delta \u0394 is most commonly used to represent change. In mathematics and science, \u0394x means "the change in x." For example, \u0394T means a change in temperature, \u0394v means a change in velocity, and \u0394p means a change in pressure.
In calculus, \u0394 represents a finite change, while d represents an infinitesimal change. The ratio \u0394y/\u0394x gives the slope between two points on a curve.
Lowercase \u03B4 — Variation and Partial Change
The lowercase delta \u03B4 has several specialized uses:
- Calculus: Represents a small variation or partial change
- Chemistry: Indicates a partial charge (like \u03B4+ and \u03B4- in polar molecules)
- Physics: Represents the Dirac delta function and Kronecker delta
- Engineering: Used for deflection, damping ratio, and relative density
- Finance: Delta measures how much an option price changes relative to the underlying asset
How to Type Delta on Keyboard
Windows
- Alt codes: Hold Alt, type 30 for \u0394, or Alt + 235 for \u03B4 (numeric keypad)
- Character Map: Search "delta" in Character Map, select and copy
- Word/Office: Insert > Symbol > Greek and Coptic > Delta
Mac
- Character Viewer: Control+Command+Space, search "delta," double-click
- Greek keyboard: Add Greek input source, press "d" for \u03B4, Shift+D for \u0394
Mobile
Copy from this page or add a Greek keyboard. On both iOS and Android, adding a Greek keyboard lets you type \u03B4 by pressing "d" and \u0394 by pressing Shift+"D".
LaTeX Commands
| Symbol | Command | Output |
|---|---|---|
| Capital Delta | \Delta | Δ |
| Small Delta | \delta | δ |
| Nabla | \nabla | ∇ |
HTML Entities
| Render | Named Entity | Decimal Code |
|---|---|---|
| Δ | Δ | Δ |
| δ | δ | δ |
Delta in Finance (Options Trading)
In options trading, delta is one of the "Greeks" — a set of metrics that measure an option's sensitivity. Delta specifically measures how much an option's price changes for every $1 move in the underlying asset. A delta of 0.5 means the option price moves $0.50 for every $1 move in the stock. Call options have positive delta (0 to 1), while put options have negative delta (-1 to 0).
Quick Copy Section
All delta symbols in one place:
Δ δ △ ∆ ∇
Highlight, copy, paste. Done.