| Symbol/Unicode | Psi/U+03C8 |
|---|---|
| Type of symbol | Greek small letter |
| Package (requirement) | No |
| Argument | No |
| Latex command | \psi |
| Example | \psi → 𝜓 |
Although psi is a Greek small letter, it has many uses in mathematics and physics as a function. Simple command for this is psi. But, this is math mode command.
\documentclass{article}
\begin{document}
\[ \psi(A,B,C) \]
\[ \psi(1,2,1) \]
\[ |\psi(\textbf{e},t)|^2 \]
\end{document}
