Use the Symbol font in the Edit > Font menu to type various Greek letters. If you have Key Caps installed in your Apple menu, you can use that to see other examples of characters available with a particular font, and when pressing the Option key. For example, with the Symbol font:
|
>Type: |
To get: |
|
a |
α |
|
b |
β |
|
m |
µ |
|
p |
p |
|
y |
Y |