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4-4 Function Graphing
Pressing
3
displays the current mode settings, as described in Chapter 1. For
function graphing, the graphing mode must be set to FUNC. Before you graph a
function, check to be sure that the mode settings are appropriate.
Press
3
to display the mode settings. The current settings
are highlighted.
The TI
-
80 has two graphing modes.
¦
FUNC
(function graphing)
¦
PARAM
(parametric graphing)
To graph functions, you must select
FUNC
(function
graphing).
The basics of graphing on the TI
-
80 are described in this
chapter. Differences in parametric graphing are described in
Chapter 5.
The mode settings can affect how functions are graphed.
¦
RADIAN
or
DEGREE
mode may affect how some functions
are interpreted.
¦
CONNECTED
or
DOT
affects how the selected functions
are plotted.
¦
SEQUENTIAL
or
SIMUL
affects how functions are plotted
if you have more than one function selected.
You can set the graphing mode and other modes from a
program.
Begin on a blank line in the program editor. Press
3
to
display the
MODE
screen. Press
8
and
7
to place the cursor
on the mode that you want to select, and then press
¸
.
The name of the mode is copied to the cursor location.
Setting Graph Modes
Checking and
Changing
Graphing Modes
Setting Modes
from a Program