Texas Instruments PLUS TI-89 - Manual (Page 131)

114 Chapter 6: Basic Function Graphing
06BASFUN.DOC TI-89/TI-92 Plus: Basic Function Graphing (English) Susan Gullord Revised: 02/23/01 4:09 PM Printed: 02/23/01 4:18 PM Page 114 of 22
From the Y= Editor, Window Editor, or Graph screen, press ƒ and
select
9:Format .
¦ The GRAPH FORMATS dialog
box shows the current
settings.
¦ To exit without making a
change, press N.
Format Description
Coordinates Shows cursor coordinates in rectangular ( RECT )
or polar ( POLAR ) form, or hides ( OFF ) the
coordinates.
Graph Order Graphs functions one at a time ( SEQ ) or all at the
same time ( SIMUL ).
Grid Shows ( ON ) or hides ( OFF ) grid points that
correspond to the tick marks on the axes.
Axes Shows ( ON ) or hides ( OFF ) the x and y axes.
Leading Cursor Shows ( ON ) or hides ( OFF ) a reference cursor
that tracks the functions as they are graphed.
Labels Shows ( ON ) or hides ( OFF ) labels for the x and y
axes.
From the GRAPH FORMATS dialog box:
1. Move the cursor to highlight the format setting.
2. Press B to display a menu of valid settings for that format.
3. Select a setting. Either:
¦ Move the cursor to highlight the setting, and then press ¸.
— or —
¦ Press the number for that setting.
4. After changing all applicable format settings, press ¸ to save
your changes and close the GRAPH FORMATS dialog box.
Changing the Graph Format
You can set the graph format to show or hide reference
elements such as the axes, a grid, and the cursor’s
coordinates. Function graphs, parametric graphs, etc., have
their own independent set of graph formats.
Displaying Graph
Format Settings
Tip: You also can display
the GRAPH FORMATS
dialog box from the Y=
Editor, Window Editor, or
Graph screen. Press:
TI
. 89: ¥ Í
TI . 92 Plus: ¥ F
Tip: To turn off tick marks,
define the viewing window
so that xscl and/or yscl = 0.
Changing Settings
Tip: To cancel a menu or
exit the dialog box without
saving any changes, use
N instead of ¸ .