Gamma(𝛾) symbol in LaTeX

Symbol/Unicode Gamma/U+1D6FE
Type of symbol Greek letter
Package (requirement) No
Argument No
Latex command \gamma
Example \gamma  → 𝛾

You do not need to use any packages to write the gamma symbol in Latex, just use the default \gamma  command and the symbol will be printed in the document.

\documentclass{article}
\begin{document}
$$\gamma^+$$
$$\gamma(x-a)$$
$$\gamma = \frac{Pl}{\pi r(l-2r)}$$
\end{document}

Output :