Upsilon Symbol
Υ υ
The upsilon symbol (Υ / υ) is a letter of the Greek alphabet. This page covers its meaning across mathematics, science, and engineering, its Unicode code point, TeX command, and Windows Alt codes — and you can copy and paste the upsilon symbol with one click.
Uppercase Upsilon Symbol (Υ)
| Symbol | Format | Data |
|---|---|---|
| Υ | Unicode | U+03A5 |
| Υ | HTML | Υ |
| Υ | CSS | \03a5 |
| Υ | JavaScript | \u03A5 |
| TeX | \Upsilon | |
| SVG | Download ↓ | |
 | Image | Download ↓ |
Also known as: upsilon, uppercase upsilon, big upsilon, greek upsilon, greek y.
Υ is the capital form of the Greek letter upsilon, resembling a Latin capital Y. It is rarely used in mathematics because of this visual overlap, but it appears in particle physics as the name of the upsilon meson. The lowercase υ is similarly uncommon in mathematical notation.
Lowercase Upsilon Symbol (υ)
| Symbol | Format | Data |
|---|---|---|
| υ | Unicode | U+03C5 |
| υ | HTML | υ |
| υ | CSS | \03c5 |
| υ | JavaScript | \u03C5 |
| TeX | \upsilon | |
| SVG | Download ↓ | |
 | Image | Download ↓ |
Also known as: greek upsilon, upsilon symbol, curly u, greek u letter, lowercase upsilon, upsilon greek letter.
The Greek small letter upsilon (υ) is the twentieth letter of the Greek alphabet. It is less common in mathematics than most Greek letters because of its visual similarity to the Latin v and u, but it appears as a variable or parameter where those letters are already taken. In particle physics it names the upsilon meson.
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