Gamma — γ Greek Letter Symbol
γ
Gamma — γ / Γ
3rd letter of the Greek alphabet · pronounced /ˈɡæmə/
PhysicsMathematicsEngineeringOptics
Copy symbol
γ
Lowercase gamma
Γ
Uppercase Gamma
Technical reference
| Unicode (lowercase) | U+03B3 |
| Unicode (uppercase) | U+0393 |
| HTML entity | γ |
| HTML decimal | γ |
| LaTeX | \gamma |
| Python / Unicode escape | \u03b3 |
| Alt code (Windows) | Alt + 947 |
Uses in science & engineering
Gamma radiation
High-energy electromagnetic radiation emitted during nuclear decay. Highest penetrating power of all radiation types.
\(E = h\nu\)
Gamma function
Extension of factorial to real and complex numbers.
\(\Gamma(n) = (n-1)!\)
Lorentz factor (relativity)
Describes time dilation and length contraction at relativistic speeds.
\(\gamma = \frac{1}{\sqrt{1 – v^2/c^2}}\)
Surface tension
Force per unit length acting at a liquid surface or interface.
\(W = \gamma \cdot \Delta A\)
Shear strain
Deformation of a material due to shear stress in structural engineering.
\(\tau = G \cdot \gamma\)
Related symbols
How to insert in applications
Windows
Best option: copy from this page.
Or press Win + . to open emoji & symbols panel.
Alt codes work only in Word/Notepad with NumLock on and English layout — not in browsers.
Or press Win + . to open emoji & symbols panel.
Alt codes work only in Word/Notepad with NumLock on and English layout — not in browsers.
macOS
Press ⌃⌘Space → Character Viewer → search “gamma”
Microsoft Word
Type 03b3 then press Alt+X
Google Docs
Insert → Special characters → search by name
Excel
Insert → Symbol → Subset: Greek → select symbol
LaTeX
Use in math mode: $ … $
Python
Use Unicode escape or chr()
HTML / CSS
Use HTML entity or decimal code