Texas Instruments TI-83 Manual Book page 8

The alpha function of each key is printed in green above the key. When
you press the green ƒ key, the alpha character printed in green
above the other keys becomes active for the next keystroke. For
example, when you press ƒ and then , the letter
This guidebook describes this keystroke combination as ƒ [
TI-83 Plus Operating the TI-83 Plus Silver Edition
The y key
accesses the
second function
printed in yellow
above each key.
The ƒ key
accesses the alpha
function printed in
green above each
key.
is entered.
A
].
A
5