ε
| Symbol | Format | Data |
|---|---|---|
| ε | Code Point |
U+03B5 |
| TeX |
\varepsilon |
|
| SVG | Download ↓ |
The (epsilon) symbol is used in math as a variable to represent error bounds. For example, in calculus, limits are formally defined using the (epsilon-delta) definition[1].
The small letter epsilon () is produced by the TeX command \varepsilon. The command \epsilon renders a different glyph, the lunate epsilon ().
The Greek small letter delta (δ) is used in math as a variable. It appears in calculus in epsilon-delta notation.
The capital Greek letter epsilon (Ε) is visually very similar to the Latin capital letter E. Refer to Capital E for how the symbol appears in math.
The lunate epsilon (ϵ) is a variant form of the Greek letter epsilon, produced by the TeX command \epsilon. The standard small letter epsilon (ε) is a separate symbol.
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(ε, δ) "epsilon delta" definitions of limitsGrant Sanderson (3Blue1Brown)