Small Epsilon(ε) symbol in LaTeX

Symbol/Unicode Varepsilon/U+03F5
Type of symbol Greek small letter
Package (requirement) No
Argument No
Latex command \varepsilon
Example \varepsilon → ε

You need to use the default command \varepsilon to print the small epsilon symbol in a latex document.

   $$ B(y_0 ,\;\varepsilon) $$
   $$ \sqrt{-\varepsilon + 4} < \sqrt{\varepsilon + 4} $$
   $$ \mid x^2 - 1 \mid < \varepsilon $$

Output :

Use varepsilon in latex.

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