y and ƒ keys
Most keys on the TI-82 STATS can perform two or more functions.
To use a function printed on a key, press the key. To use a
function printed above a key in green or orange, you must first
press the y key or the ƒ key.
y key
Second functions are printed above the keys in green (the same
color as the y key). Some secondary functions enter a function
or a symbol on the home screen (sin
display menus or editors.
To view the ANGLE menu, for example, look for ANGLE (printed
in green) above the key near the top of the TI-82 STATS
keyboard. Press the y key (and then release it) and then press
. In this book and in the TI-82 STATS Guidebook, this key
combination is indicated by y ;, not y . When you
see these key combinations, press each key separately, not at the
same time.
Note: The flashing cursor changes to
you press the
pressing
ƒ key
The ƒ key lets you enter the alphabetic characters and some
special symbols. To enter T, for example, press ƒ (and then
release it) and then press ¶. In this book and in the TI-82 STATS
Guidebook, this key combination is indicated by ƒ [
If you have several alphabetic characters to enter, press
y 7 to avoid having to press the ƒ key multiple times.
This locks the alpha key in the On position until you press ƒ a
second time to unlock it.
Note: The flashing cursor changes to
If you press the
pressing
y
key accidentally, you can undo the action by
y
a second time.
ƒ
key accidentally, you can undo the action by
ƒ
a second time.
-1
or ‡, for example). Others
Þ
when you press the
Ø
when you press the
7
y
key. If
].
T
ƒ
key.