Operating the TI-80 1-9
Modes control how numbers and graphs are displayed and interpreted by the
calculator. Mode settings are retained by the Constant Memory feature when the
TI.80 is turned off.
Press 3 to display the MODE screen. The current settings
are highlighted. The settings are described on the following
pages.
NORMAL SCI Numeric display format.
FLOAT 0123456789 Number of decimal places.
RADIAN DEGREE Unit of angle measure.
aÀbºc b
ºcType of fraction display.
AUTOSIMP MANSIMP Whether to simplify fractions.
FUNC PARAM Type of graphing.
CONNECTED DOT Whether to connect graph points.
SEQUENTIAL SIMUL Whether to plot simultaneously.
To change the mode setting:
1. Press 8 or 7 to move the cursor to the line of the setting
that you want to change. The setting that the cursor is on
blinks.
2. Press 9 or 6 to move the cursor to the setting that you
want.
3. Press ¸.
To leave the MODE screen:
¦Press the appropriate keys to go to another screen.
¦Press y . or M to return to the Home screen.
You can set a mode from a program by entering the name of
the mode as an instruction; for example, FUNC or FLOAT.
From a blank line in the program editor (Chapter 10), press
3 to display a menu of the mode names, and then select
the name. The name is copied to the cursor location.
Setting Modes
Checking MODE
Settings
Changing MODE
Settings
Leaving the
MODE Screen
Setting a Mode
from a Program