You can use {/Symbol <Alphabet>} to display Greek letters. For example {/Symbol a} is for \(\alpha\).
| Alphabet | Full | Symbol | 
| A | Alpha | A | 
| B | Beta | B | 
| C | Chi | X | 
| D | Delta | \(\Delta\) | 
| E | Epsilon | E | 
| F | Phi | \(\Phi\) | 
| G | Gamma | \(\Gamma\) | 
| H | Eta | H | 
| I | iota | I | 
| K | Kappa | K | 
| L | Lambda | \(\Lambda\) | 
| M | Mu | M | 
| N | Nu | N | 
| O | Omicron | O | 
| P | Pi | \(\Pi\) | 
| Q | Theta | \(\Theta\) | 
| R | Rho | P | 
| T | Tau | T | 
| U | Upsilon | \(\Upsilon\) | 
| W | Omega | \(\Omega\) | 
| X | Xi | \(\Xi\) | 
| Y | Phi | \(\Phi\) | 
| Z | Zeta | Z | 
| Alphabet | Full | Symbol | 
| a | alpha | \(\alpha\) | 
| b | beta | \(\beta\) | 
| c | chi | \(\chi\) | 
| d | delta | \(\delta\) | 
| e | epsilon | \(\epsilon\) | 
| f | phi | \(\phi\) | 
| g | gamma | \(\gamma\) | 
| h | eta | \(\eta\) | 
| i | iota | \(\iota\) | 
| k | kappa | \(\kappa\) | 
| l | lambda | \(\lambda\) | 
| m | mu | \(\mu\) | 
| n | nu | \(\nu\) | 
| o | omicron | \(\omicron\) | 
| p | pi | \(\pi\) | 
| q | theta | \(\theta\) | 
| r | rho | \(\rho\) | 
| t | tau | \(\tau\) | 
| u | upsilon | \(\upsilon\) | 
| w | omega | \(\omega\) | 
| x | xi | \(\xi\) | 
| y | phi | \(\phi\) | 
| z | zeta | \(\zeta\) |