Epsilon symbol
Type :epsilon: · Greek
Unicode name Greek Small Letter Epsilon · Greek and Coptic block · added in Unicode 1.1, 1993
What ε is for
A vanishingly small positive quantity, and half of the epsilon-delta definition of a limit. In computing it also names the smallest representable difference between two floats.
How to type ε
The shortcuts below are the built-in routes. With
Emoji Anywhere
installed you can skip all of them and type
:epsilon: in any text field instead, which
is the same on every platform.
macOS
No direct shortcut. Use Edit → Emoji & Symbols, or switch to the Unicode Hex
Input source and type 03B5 with Option
held.
Windows
No Alt code. In Word, type 03B5 then press Alt +
X. Elsewhere use the emoji panel with Win + Period, or Character Map.
Shortcodes
:epsilon: On the web
HTML ε
Unicode U+03B5
JavaScript '\u{03B5}'
CSS "\03B5"
Python '\u03B5'
URL %CE%B5
More from greek
:capital_phi: Θ :capital_theta: α :alpha: β :beta: γ :gamma: δ :delta: θ :theta: λ :lambda: μ :mu_micro: π :pi: σ :sigma: τ :tau: Every symbol and kaomoji is in the full gallery .
Tired of copying ε from pages like this one?
That is exactly what the extension removes. Here is the whole interaction, in every text field you already use:
You type
You get
Your keyboard already knows what you mean
Free, 290 KB, no account. Two letters from now you will never open an emoji panel again.