There is no need to use a package to print the phi symbol in a latex document.You only need to use \phi, the default command of latex.
| Symbol/Unicode | Phi/U+1D719 |
|---|---|
| Type of symbol | Greek small letter |
| Package (requirement) | No |
| Argument | No |
| Latex command | \phi |
| Example | \phi βΒ π |
\documentclass{article}
\begin{document}
$$ f\;o(\phi) $$
$$ \phi(1+o(1)) $$
$$ f \sim \phi $$
\end{document}Output :
