Texas Instruments TI-83 Manual Book page 119

3. Select
1:FnOn
one or more functions. The instruction you select is copied to the
cursor location.
4. Enter the number (
function you want to turn on or turn off.
If you enter two or more numbers, separate them with commas.
To turn on or turn off all functions, do not enter a number after
or
FnOn
[
FnOn function#,function#, . . .,function n
[
FnOff function#,function#, . . .,function n
5. Press Í. When the instruction is executed, the status of each
function in the current mode is set and
For example, in
editor, and then turns on
Y=
TI-83 Plus Function Graphing
to turn on one or more functions or
through
1
.
FnOff
mode,
Func FnOff :FnOn 1,3
Y
, or ; not the variable
9 0
]
]
Done
and .
Y
1 3
2:FnOff
) of each
Y n
is displayed.
turns off all functions in the
to turn off
116